Chapter 14
Electrical Schematics
the ES terminals by the R/T, G/T
terminals on the Uponor Singlezone Pump Relay from an internal
transformer. When the circuit
is completed between the relay
and the ZCM, a coil in the relay
is energized, closing the contacts
to start the circulator and, in this
illustration, fire the boiler. Again,
the contact 5 and 6NO on the
• A3050050 50 VA Transformer
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Thermal
Actuators, the Uponor Zone
Control Module (ZCM) and the
Uponor Single-zone Pump Relay.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
is unpowered and will require an
auxiliary power source. In this
schematic, power is applied to
Rh W
Rh W
2 3 4
2 3 4
2 3 4
24 VAC
Transformer
A3050050
R
C
ES
ES
R1 R2 Y1 Y2
Red Wires
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will close,
illuminating the red light on the
ZCM. When end switch closure
is detected, a contact will close
between the ES-ES terminals on
the ZCM, energizing the Uponor
Single-zone Pump Relay. Following
this control procedure will eliminate
any “dead-head” circulator
conditions for radiant circulator
(P1). The actuators must be open
before the circulator will operate.
Rh W
R1 R2 Y1 Y2
R1 R2 Y1 Y2
Red Wires
• A3010100 Single-zone
Pump Relay
R
C
ES
ES
Yellow Wires
• A3030003/A3030004 Zone
Control Module (ZCM)
Red Wires
• A3010522 Thermal Actuators
Yellow Wires
• A3030101 Uponor Thermostats
Uponor Single-zone Pump Relay
are dry contacts and require an
additional power supply. In most
instances, power is supplied to
these contacts from a transformer
within the boiler control off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
Yellow Wires
Wiring Schematic 1
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
Boiler Control
P1
Wiring Schematic 1
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
163
Wiring Schematic 2
• A3030101 Uponor Thermostats
• A3070526 Uponor Zone Valve
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3010100 Single-zone
Pump Relay
• A3050050 50 VA Transformer
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Zone Valves,
the Uponor Zone Control Module
(ZCM) and the Uponor Single-zone
Pump Relay.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the Zone Valve
164
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator,
allowing flow through these loops
on the manifold. Once the actuator
has opened to a minimal position,
an end switch inside the actuator
will close, illuminating the red light
on the ZCM. When end switch
closure is detected, a contact will
close between the ES-ES terminals
on the ZCM, energizing the
Uponor Single-zone Pump Relay.
Following this control procedure
will eliminate any “dead-head”
circulator conditions for radiant
circulator (P1). The actuators
must be open before the circulator
will operate.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
is unpowered and will require an
auxiliary power source. In this
schematic, power is applied to
the ES terminals by the R/T, G/T
terminals on the Uponor Singlezone Pump Relay from an internal
transformer. When the circuit
is completed between the relay
and the ZCM, a coil in the relay
is energized, closing the contacts
to start the circulator and, in this
illustration, fire the boiler. Again,
the contact 5 and 6NO on the
Uponor Single-zone Pump Relay
are dry contacts and require an
additional power supply. In most
instances, power is supplied to
these contacts from a transformer
within the boiler control off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
Rh W
2 3 4
2 3 4
2 3 4
24 VAC
Transformer
A3050050
Red Wires
R1 R2 Y1 Y2
R
C
ES
ES
Yellow Wires
R1 R2 Y1 Y2
Yellow Wires
Yellow Wires
Red Wires
R1 R2 Y1 Y2
Red Wires
R
C
ES
ES
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
Boiler Control
P1
Wiring Schematic 2
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
165
Wiring Schematic 3
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3070526 Uponor Zone Valve
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3010100 Single-zone
Pump Relay
• A3050050 50 VA Transformer
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Actuators,
Zone Valves, the Uponor Zone
Control Module (ZCM) and the
Uponor Single Pump Relay.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
Zone Control Module (ZCM),
illuminating the yellow light on
the ZCM. This call for heat sends
166
power to the actuator(s) or Zone
Valve for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator,
allowing flow through these
loops on the manifold. Once the
actuator has opened to a minimal
position, an end switch inside of
the actuator will close, illuminating
the red light on the ZCM. When
end switch closure is detected,
a contact will close between the
ES-ES terminals on the ZCM,
energizing the Uponor Singlezone Pump Relay. Following this
control procedure will eliminate any
“deadhead” circulator conditions
for radiant circulator (P1). The
actuator(s) must be open before
the circulator will operate.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
is unpowered and will require an
auxiliary power source. In this
schematic, power is applied to
the ES terminals by the R/T, G/T
terminals on the Uponor Singlezone Pump Relay from an internal
transformer. When the circuit
is completed between the relay
and the ZCM, a coil in the relay
is energized, closing the contacts
to start the circulator and, in this
illustration, fire the boiler. Again,
the contact 5 and 6NO on the
Uponor Single-zone Pump Relay
are dry contacts and require an
additional power supply. In most
instances, power is supplied to
these contacts from a transformer
within the boiler control off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
Rh W
2 3 4
2 3 4
2 3 4
24 VAC
Transformer
A3050050
Yellow Wires
R
C
ES
ES
Yellow Wires
Red Wires
Yellow Wires
Red Wires
Yellow Wires
Red Wires
R1 R2 Y1 Y2
Red Wires
R1 R2 Y1 Y2
Red Wires
R1 R2 Y1 Y2
Yellow Wires
R
C
ES
ES
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
Boiler Control
P1
Wiring Schematic 3
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
167
Wiring Schematic 4
• A3030101 Uponor Thermostats
• A3080301 Three-zone
Multi-pump Relay
Overview: Multiple zone
control and boiler enable using
Uponor Thermostats operating
multiple radiant circulators
(P1 and P2), using the Uponor
Three-zone Multi-pump Relay.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
168
Three-zone Multi-pump Relay. In
this schematic, power is applied to
the DT10 Thermostats by the T1
and T2 terminals on the Uponor
Three-zone Multi-pump Relay
from an internal transformer.
When the circuit is completed
between the thermostat and the
circulator panel, a coil in the relay
is energized, closing the contacts
to start the circulator and, in
this illustration, fire the boiler.
Contacts X1/X2 are considered
“dry contacts.” This means any
wiring connected to these terminals
is unpowered and will require an
auxiliary power source. In most
instances, power is supplied to
these contacts from a transformer
within the boiler controls off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
Three-zone Multi-pump Relay A3080301
Transformer
C
L2
CP/
ZC L1
L N
Line Voltage
R
X2/
X1 ZR
PR PR
T1
T1
C1
C1
T2
C2
T2
C2
T3
T3
C3
C3
Boiler Control
P1
P2
Wiring Schematic 4
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
169
Wiring Schematic 5
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3080301 Three-zone
Multi-pump Relay
• A3050050 50 VA Transformer
Overview: Multiple zone
control and boiler enable using
Uponor Thermostats, Uponor
Actuators, the Uponor Zone
Control Module (ZCM) operating
multiple radiant circulators
(P1, P2, P3), using the Uponor
Three-zone Multi-pump Relay.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
170
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will close,
illuminating the red light on the
ZCM. When end switch closure
is detected, a contact will close
between the ES-ES terminals on
the ZCM, energizing the Uponor
Three-zone Multi-pump Relay.
Following this control procedure
will eliminate any “dead-head”
circulator conditions for the radiant
circulator (P1). The actuator(s)
must be open before the circulator
will operate.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
are unpowered and will require
an auxiliary power source. In this
schematic, power is applied to
the ES terminals by the T1/T1
terminals on the Uponor Threezone Multi-pump Relay from an
internal transformer. When the
circuit is completed between the
relay and the ZCM, a coil in the
relay is energized, closing the
contacts to start the circulator and,
in this illustration, fire the boiler.
Again, the contacts X1/X2 are dry
contacts and require an additional
power supply. In most instances,
power is supplied to these contacts
from a transformer within the
boiler controls off the T-T or R-G
terminals. Consult the heating
equipment manufacturer’s wiring
schematics for the proper terminals
to energize the boiler.
Also shown in this schematic
is a separate thermostat used
to control a second radiant
circulator (P2). In this example,
the thermostat is directly wired to
the relay to operate that second
circulator. This scenario exists when
a manifold is treated as a single
zone, controlled by a circulator
instead of a zone valve. Power is
supplied to the thermostat from
the T2/T2 terminals. When the
thermostat calls for heat, the circuit
between the T2 terminals is closed
and a coil is energized in the relay,
starting the radiant circulator (P2)
and closing the contacts between
X1/X2, starting the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
Rh W
2 3 4
2 3 4
2 3 4
R1R2Y1Y2
R1R2Y1Y2
R1R2Y1Y2
Rh W
Rh W
Rh W
2 3 4
2 3 4
2 3 4
R1R2Y1Y2
R1R2Y1Y2
R1R2Y1Y2
Red Wires
R
C
ES
ES
Yellow Wires
Red Wires
Yellow Wires
Red Wires
R
C
ES
ES
Yellow Wires
24 VAC
Transformer
A3050050
Rh W
Red Wires
R
C
ES
ES
Yellow Wires
Red Wires
Yellow Wires
Red Wires
R
C
ES
ES
Yellow Wires
24 VAC
Transformer
A3050050
Three-zone Multi-pump Relay A3080301
Transformer
C
L2
CP/
ZC L1
R
X2/
X1 ZR
T1
PR PR
C1
T1
T2
C1
C2
T2
C2
T3
C3
T3
C3
L N
Boiler Control
Line Voltage
P1
P2
P3
Wiring Schematic 5
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
171
Wiring Schematic 6
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3080301 Three-zone
Multi-pump Relay
• A3050050 50 VA Transformer
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Actuators,
the Uponor Zone Control Module
(ZCM) operating one radiant
circulator (P1), along with a single
Uponor Thermostat operating a
second radiant circulator (P2),
using the Uponor Three-zone
Multi-pump Relay.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
172
loops on the manifold. Once the
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will close,
illuminating the red light on the
ZCM. When end switch closure
is detected, a contact will close
between the ES-ES terminals on
the ZCM, energizing the Uponor
Three-zone Multi-pump Relay.
Following this control procedure
will eliminate any “dead-head”
circulator conditions for radiant
circulator (P1). The actuator(s)
must be open before the circulator
will operate.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
are unpowered and will require
an auxiliary power source. In this
schematic, power is applied to
the ES terminals by the T1/T1
terminals on the Uponor Threezone Multi-pump Relay from an
internal transformer. When the
circuit is completed between the
relay and the ZCM, a coil in the
relay is energized, closing the
contacts to start the circulator and,
in this illustration, fire the boiler.
Again, the contacts X1/X2 are dry
contacts and require an additional
power supply. In most instances,
power is supplied to these contacts
from a transformer within the
boiler controls off the T-T or R-G
terminals. Consult the heating
equipment manufacturer’s wiring
schematics for the proper terminals
to energize the boiler.
Also shown in this schematic
is a separate thermostat used
to control a second radiant
circulator (P2). In this example,
the thermostat is directly wired to
the relay to operate that second
circulator. This scenario exists when
a manifold is treated as a single
zone, controlled by a circulator
instead of a zone valve. Power is
supplied to the thermostat from
the T2/T2 terminals. When the
thermostat calls for heat, the
circuit between the T2 terminals is
closed and a coil is energized in the
relay, starting the radiant circulator
(P2) and closing the contacts
between X1/X2, starting the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
Rh W
24 VAC
Transformer
A3050050
2 3 4
Yellow Wires
R1R2Y1Y2
Red Wires
Red Wires
R
C
ES
ES
Yellow Wires
R1R2Y1Y2
Yellow Wires
R1R2Y1Y2
Yellow Wires
Red Wires
Yellow Wires
Red Wires
Yellow Wires
Red Wires
2 3 4
Red Wires
2 3 4
R
C
ES
ES
Three-zone Multi-pump Relay A3080301
Transformer
C
L2
CP/
ZC L1
X2/
X1 ZR
R
T1
PR PR
C1
T1
T2
C1
C2
T2
C2
T3
C3
T3
C3
L N
Boiler Control
Line Voltage
P1
P2
Wiring Schematic 6
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
173
Wiring Schematic 7
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3080301 Three-zone
Multi-pump Relay
• A3050050 50 VA Transformer
• A3070526 Uponor 1" Zone Valve
Overview: Multiple zone control,
multiple circulator control (P1
and P2) and boiler enable using
Uponor Thermostats, Uponor
Actuators, the Uponor Zone
Control Module (ZCM) and the
Uponor Three-zone Multi-pump
Relay, along with a single Uponor
Thermostat operating a zone valve
(M1), also wired through the
Uponor ZCM.
Sequence of Operation:
On a call for heat, the Uponor
Thermostat sends a signal to
the Uponor ZCM, illuminating
the yellow light on the ZCM.
This call for heat sends power
to the actuator(s) for that zone,
174
energizing the Y1-Y2 terminals
on the ZCM. This activates or
opens the actuator(s), allowing
flow through these loops on the
manifold. Once the actuator(s)
have opened to a minimal position,
an end switch inside of the
actuator(s) will close, illuminating
the red light on the ZCM. When
end switch closure is detected,
a contact will close between the
ES-ES terminals on the ZCM,
energizing the Uponor Three-zone
Multi-pump Relay. Following this
control procedure will eliminate any
“dead-head” circulator conditions
for radiant circulator (P1). The
actuator(s) must be open before
the circulator will operate.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
is unpowered and will require an
auxiliary power source. In this
schematic, power is applied to the
ZCM ES terminals by the T1-T1
and T2-T2 terminals on the Uponor
Three-zone Multi-pump Relay
from an internal transformer. When
the circuit is completed between
the relay and the ZCM, a coil in
the relay is energized, closing the
contacts to start the circulator and,
in this illustration, fire the boiler.
Again, the contacts X1/X2 on the
Uponor Three-zone Multi-pump
Relay are dry contacts and require
an additional power supply. In most
instances, power is supplied to
these contacts from a transformer
within the boiler control off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
Also shown in this schematic is
a separate thermostat wired to a
ZCM to control a zone valve (M1).
The zone valve can be wired to
the thermostat using the ZCM.
Following the same sequence of
operation as above, the red wires
from the internal end switch are
wired in parallel to the wiring from
the multiple circulator relay panel.
This wiring configuration will allow
a call for heat from either the relay
panel or the zone valve to activate
the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
24 VAC
Transformer
A3050050
2 3 4
Red Wires
R
C
ES
ES
Yellow Wires
Red Wires
Rh W
R1R2Y1Y2
Yellow Wires
R1R2Y1Y2
Yellow Wires
Red Wires
R1R2Y1Y2
Yellow Wires
Red Wires
Yellow Wires
Red Wires
Yellow Wires
2 3 4
Red Wires
2 3 4
R
C
ES
ES
Rh W
24 VAC
Transformer
A3050050
2 3 4
R
C
ES
ES
Red Wires
Red Wires
R1R2Y1Y2
Yellow Wires
R1R2Y1Y2
Yellow Wires
R1R2Y1Y2
Red Wires
2 3 4
Yellow Wires
Red Wires
2 3 4
Yellow Wires
Red Wires
Yellow Wires
Red Wires
Yellow Wires
R
C
ES
ES
Three-zone Multi-pump Relay A3080301
Transformer
C
Rh W
R
T1
T1
T2
T2
T3
T3
L2
Red Wires
Yellow Wires
24 VAC
Transformer
A3050050
CP/
ZC L1
X2/
X1 ZR
PR PR
C1
C1
C2
C2
C3
C3
M1
L N
Line Voltage
P1
P2
Boiler Control
Wiring Schematic 7
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
175
Wiring Schematic 8
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3010100 Single-zone
Pump Relay
• A3050050 50 VA Transformer
• A3040150 Uponor SetPoint 150
Controller (SPC)
Overview: Multiple zone control
and circulator control (P1) using
Uponor Thermostats, Uponor
Actuators, the Uponor Zone
Control Module (ZCM) and the
Uponor Single-zone Pump Relay.
Radiant supply water temperature
and boiler enable is controlled
by the Uponor SetPoint 150
Controller (SPC).
Sequence of Operation: On a
call for heat, the Uponor
Thermostat sends a signal to
the Uponor ZCM, illuminating
the yellow light on the ZCM.
This call for heat sends power
to the actuator(s) for that zone,
energizing the Y1-Y2 terminals
on the ZCM. This activates or
opens the actuator(s), allowing
flow through these loops on the
manifold. Once the actuator(s)
176
have opened to a minimal position,
an end switch inside of the
actuator(s) will close, illuminating
the red light on the ZCM. When
end switch closure is detected,
a contact will close between
the ES-ES terminals on the
ZCM, energizing the Uponor
Single-zone Pump Relay. Following
this control procedure will eliminate
any “dead-head” circulator
conditions for the radiant circulator
(P1). The actuators must be open
before the circulator will operate.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
is unpowered and will require an
auxiliary power source. In this
schematic, power is applied to
the ES terminals by the R/T, G/T
terminals on the Uponor Singlezone Pump Relay from an internal
transformer. When the circuit
is completed between the relay
and the ZCM, a coil in the relay
is energized, closing the contacts
to start the circulator and, in this
illustration, fire the boiler. Again,
the contact 5 and 6NO on the
Uponor Single-zone Pump Relay
are dry contacts and require an
additional power supply. In most
instances, power is supplied to
these contacts from a transformer
within the boiler control off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
The Uponor SetPoint 150
Controller is added in series to
the wiring between the Uponor
Single-zone Pump Relay and the
boiler control. The SPC is used to
control the radiant supply water
temperature, possibly through a
heat exchanger. For example, if the
SPC is set for 120°F and the sensor
(S1) is reading a temperature
below the setpoint, the contacts 3
and 4 are closed and the boiler is
allowed to fire. If the temperature
being read on sensor S1 is higher
the than the desired temperature,
the contacts between 3 and 4 are
open and the boiler does not fire.
The zones open, and the radiant
circulator (P1) operates, but it is
not necessary to fire the boiler
and add heat when the proper
supply water temperature is being
delivered. Consult the boiler
manufacturer’s wiring schematics
for the proper terminals to energize
the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
24 VAC
Transformer
A3050050
Red Wires
Yellow Wires
Yellow Wires
R
C
ES
ES
R1R2Y1Y2
Yellow Wires
Red Wires
Red Wires
2 3 4
R1R2Y1Y2
R1R2Y1Y2
Yellow Wires
Yellow Wires
Red Wires
Yellow Wires
Red Wires
2 3 4
Red Wires
2 3 4
R
C
ES
ES
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
6NO
4NO
6NC
4NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
SetPoint 150 Controller
A3040150
P1
C R R NO
24 VAC
Transformer
A3050050
S1
To Boiler Control
Wiring Schematic 8
Complete Design Assistance Manual
5 6
—
Chapter 14 – Electrical Schematics
177
Wiring Schematic 9
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators)
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3080301 Three-zone
Multi-pump Relay
• A3050050 50 VA Transformer
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Actuators,
the Uponor Zone Control Module
(ZCM) operating two radiant
circulators (P1 and P2) using
the Uponor Three-zone
Multi-pump Relay.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
178
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator will close,
illuminating the red light on the
ZCM. When end switch closure
is detected, a contact will close
between the ES-ES terminals
on the ZCM, energizing the
corresponding circulator through
the Uponor Three-zone Multipump Relay. Following this control
procedure will eliminate any “deadhead” circulator condition for the
radiant circulators (P1 and P2). The
actuators must be open before the
circulator will operate.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
are unpowered and will require
an auxiliary power source. In this
schematic, power is applied to the
ES terminals on either ZCM by the
T1/T1 and T2/T2 terminals on the
Uponor Three-zone Multi-pump
Relay from an internal transformer.
When the circuit is completed
between the relay and the ZCM,
a coil in the relay is energized,
closing the contacts to start the
circulator and, in this illustration,
fire the boiler. Again, the contacts
X1/X2 are dry contacts and require
an additional power supply. In most
instances, power is supplied to
these contacts from a transformer
within the boiler controls off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
Rh W
2 3 4
2 3 4
2 3 4
R1 R2 Y1 Y2
R1 R2 Y1 Y2
R1 R2 Y1 Y2
Rh W
Rh W
Rh W
2 3 4
2 3 4
2 3 4
R1 R2 Y1 Y2
R1 R2 Y1 Y2
R1 R2 Y1 Y2
Red Wires
R
C
ES
ES
Yellow Wires
Yellow Wires
Yellow Wires
Red Wires
R
C
ES
ES
Red Wires
24 VAC
Transformer
A3050050
Red Wires
R
C
ES
ES
Yellow Wires
Red Wires
Yellow Wires
Red Wires
R
C
ES
ES
Yellow Wires
24 VAC
Transformer
A3050050
Three-zone Multi-pump Relay A3080301
Transformer
C
L2
CP/
ZC L1
R
X2/
X1 ZR
T1
PR PR
C1
T1
C1
T2
C2
T2
C2
T3
C3
T3
C3
L N
Boiler Control
Line Voltage
P1
P2
Wiring Schematic 9
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
179
Wiring Schematic 10
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3010100 Single-zone
Pump Relay
• A3050050 50 VA Transformer
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Actuators,
the Uponor Zone Control
Module (ZCM) and the Uponor
Single-zone Pump Relay.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will close,
illuminating the red light on the
ZCM. When end switch closure
180
is detected, a contact will close
between the ES-ES terminals on
the ZCM, energizing the Uponor
Single-zone Pump Relay. Following
this control procedure will eliminate
any “dead-head” circulator
conditions for radiant circulator
(P1). The actuator(s) must be open
before the circulator will operate.
This wiring schematic is typical of
piping arrangements using a mixing
tank to add mass to the system
and control water temperature. In
this schematic, there is no wiring
between the single circulator relay
panel and the heat plant. This heat
plant could be a non-condensing
boiler, condensing boiler, heat
circulator, etc. A call for heat from
any of the zones will start the
radiant circulator (P2) and begin
to circulator the heat away from
the buffer tank. An aquastat (AQ1)
is added to the tank to control
the heat plant. Depending on the
differential setting on the aquastat,
once the tank temperature
has dropped below the desired
temperature setting, the contact
will close and fire the heating
equipment. The terminals inside of
the aquastat are considered “dry
contacts.” This means any wiring
connected to these terminals is
unpowered and will require an
auxiliary power source. In most
instances, power is supplied to
these contacts from a transformer
within the boiler control off the
TT or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
It is also important to understand
how this type of wiring scheme
de-energizes. Once the call from
the thermostat is ended, signifying
a satisfied space temperature,
the radiant circulator (P1) is shut
off. However, depending on the
water temperature inside the
tank, the aquastat contacts will
remain closed, continuing to fire
the heat plant, until the required
water temperature is achieved
by the buffer tank. After the set
temperature is sensed in the tank
by the aquastat, the contacts
open and interrupt the signal to
the heat plant.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
Rh W
2 3 4
2 3 4
2 3 4
24 VAC
Transformer
A3050050
R
C
ES
ES
Yellow Wires
R1 R2 Y1 Y2
Red Wires
R1 R2 Y1 Y2
Yellow Wires
Yellow Wires
Red Wires
R1 R2 Y1 Y2
Red Wires
R
C
ES
ES
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
AQ1
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
P1
Boiler
Control
Wiring Schematic 10
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
181
Wiring Schematic 11
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3010100 Single-zone
Pump Relay
• A3050050 50 VA Transformer
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Actuators,
the Uponor Zone Control
Module (ZCM) and the Uponor
Single-zone Pump Relay.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
182
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will close,
illuminating the red light on the
ZCM. When end switch closure
is detected, a contact will close
between the ES-ES terminals on
the ZCM, energizing the Uponor
Single-zone Pump Relay. Following
this control procedure will eliminate
any “dead-head” circulator
conditions for radiant circulator
(P1). The actuator(s) must be open
before the circulator will operate.
This wiring schematic is typical
of piping arrangements using a
water heater for a heat plant. In
this schematic, there is no wiring
between the single circulator relay
panel and the heat plant primarily
because water heaters use milivolt
controls and cannot be interfaced
with low or 24-volt wiring. A call
for heat from any of the zones
will start the radiant circulator
(P1) and begin to circulator the
heat away from the water heater.
The thermostatic gas valve on the
water heater controls the water
temperature inside the tank,
opening and closing the main gas
valve depending on the water
temperature inside. Once the tank
temperature has dropped below
the temperature setting on the
tank thermostat, the main gas
valve will open and begin to heat
the water. After the call for heat
has ended, the water heater’s
main burner will continue to fire
until the tank thermostat setting
is achieved.
Important: Consult local codes
prior to using a water heater as a
heat plant.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
Rh W
2 3 4
2 3 4
2 3 4
24 VAC
Transformer
A3050050
R
C
ES
ES
Yellow Wires
Red Wires
R1 R2 Y1 Y2
Yellow Wires
R1 R2 Y1 Y2
Yellow Wires
Red Wires
R1 R2 Y1 Y2
Red Wires
R
C
ES
ES
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
P1
Wiring Schematic 11
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
183
Wiring Schematic 12
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3050050 50 VA Transformer
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Actuators
and the Uponor Zone Control
Module (ZCM).
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
184
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will close,
illuminating the red light on the
ZCM. When end switch closure
is detected, a contact will close
between the ES-ES terminals on
the ZCM, completing the boiler
circuit. The actuator(s) must be
open before the boiler will operate.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
is unpowered and will require an
auxiliary power source. In this
schematic, power is supplied to
these contacts from a transformer
within the boiler control off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Rh W
Rh W
2 3 4
2 3 4
24 VAC
Transformer
A3050050
2 3 4
Yellow Wires
Yellow Wires
Red Wires
Yellow Wires
Red Wires
R
C
ES
ES
R1 R2 Y1 Y2
R1 R2 Y1 Y2
Red Wires
R1 R2 Y1 Y2
Yellow Wires
Red Wires
Yellow Wires
Red Wires
Yellow Wires
Red Wires
R
C
ES
ES
Boiler Control
Wiring Schematic 12
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
185
Wiring Schematic 13
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3050050 50 VA Transformer
• A8020000 Climate CŏntrolTM
Multifunction Controller
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Actuators,
the Uponor Zone Control Module
(ZCM) and the Multifunction
Controller and Modulating Valve
to control the radiant supply
water temperature.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will
close, illuminating the red light
on the ZCM. When end switch
186
closure is detected, a contact
will close between the ES-ES
terminals on the ZCM, energizing
the Multifunction Controller and
Modulating Valve. Following this
control procedure will eliminate any
“dead-head” circulator conditions
for radiant circulator (P1). The
actuator(s) must be open before
the circulator will operate.
When the circuit is completed
between the control and the ZCM,
the appropriate circulator (P1)
will start along with the mixing
function based on the user setup.
When this occurs, the secondary
pump (P1) will run continuously
until the heat demand has ended.
At the same time, the modulating
valve will become active. This
valve will automatically adjust
itself to deliver the correct water
temperature based on the user
set-up information and the current
outdoor temperature. The boiler
will turn on and operate as the
Multifunction Controller determines
that hotter water is required for
mixing. Sensor S2 provides boiler
return water protection. This sensor
will not allow the valve to increase
the water temperatures unless the
minimum boiler return temperature
is met, eliminating low return water
temperatures and protecting the
boiler from flue gas condensation.
Sensor S2 provides boiler return
water protection. This sensor will
not allow the Modulating Valve
to increase water temperature to
the radiant panel unless the set
temperature for minimum return
has been satisfied, eliminating low
return water temperatures and
protecting the boiler from flue gas
condensation and thermal shock.
The boiler connections through
the on/off boiler relay are
considered “dry contacts.” This
means any wiring connected to
these terminals are unpowered
and will require an auxiliary power
source. In this schematic, power is
applied to these terminals by the
boiler operating control. In most
instances, power is supplied to
these contacts from a transformer
within the boiler control off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Boiler Relay, On-Off
A9012010
Boiler
Terminals
TT-B
TT-A
24 VAC
Transformer
A3050050
Dual Sensor
A9013001
OK
S2 Return
ZCM End Switch
Input 1
TX
RX RX
External
Display
TX
Port 3
Input 4
Port 4
Input 5
Port 5
Input 6
Port 6
Input 7
Port 7
Port 7
Input 8
Port 8
L
N
Pump Relay, On-Off
A9013030
6
Port 4
5
Manual
7
8
Port 5
4
Input 3
Port 8
3
OAS
Port 3
Input 2
Black
White
Auto
Red
Port 6
2
Demand Input Dry Contact Only
Port 2
1
Port 1
Port 1
C R
24 VAC
2A Max
OAS
ON
RUN
Port 2
ES
ES
1 2
3
4
Dry 24VAC 1 A max
Demand Output
Note: Outdoor temp provided
with Climate Cŏntrol
Multifunction Controller
S1 Supply
Climate Cŏntrol Multifunction Controller
A8020000
S3 Supply
S4 Return
Modulating Valve Control
A9063020
Manual
FB
Green
CNTL
White
Auto
PWR
RED
Wiring Schematic 13
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
187
Wiring Schematic 14
• A3030101 Uponor Thermostats
• A3020522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3050050 50 VA Transformer
• A8020000 Climate Cŏntrol
Multifunction Controller
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Actuators,
the Uponor Zone Control
Module (ZCM) and the Uponor
Multifunction Controller to
control two radiant supply water
temperatures.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will
close, illuminating the red light
188
on the ZCM. When end switch
closure is detected, a contact
will close between the ES-ES
terminals on the ZCM, energizing
the Multifunction Controller.
Following this control procedure
will eliminate any “dead-head”
circulator conditions for radiant
circulators (SP1 and SP2). The
actuator(s) must be open before
these circulators will operate.
determines that hotter water
is required for mixing. Sensor
S2 provides boiler return water
protection. This sensor will not
allow the injection circulators to
increase the water temperatures
unless the minimum boiler return
temperature is met, eliminating low
return water temperatures
and protecting the boiler from flue
gas condensation.
In this schematic, power is applied
to the ES terminals by the Demand
terminals on the Multifunction
Controller, powered by an external
transformer. When the circuit is
completed between the control
and the ZCM, the appropriate
circulator will start along with
the mixing function based on the
user setup. When this occurs, the
secondary pump (SP1 or SP2) will
run continuously until the heat
demand has ended. At the same
time, the mixing devices (pumps
or valves) will become active.
These will automatically adjust
themselves to deliver the correct
water temperature based on the
user set-up information and the
current outdoor temperature. The
boiler will turn on and operate
as the Multifunction Controller
The boiler connections through
the on/off boiler relay are
considered “dry contacts.” This
means any wiring connected to
these terminals is unpowered and
will require an auxiliary power
source. In this schematic, power is
applied to these terminals by the
boiler operating control. In most
instances, power is supplied to
these contacts from a transformer
within the boiler control off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
Chapter 14 – Electrical Schematics
—
www.uponorpro.com
Boiler Relay, On-Off
A9012010
TT-A
L
Boiler
Terminals
TT-B
N
Pump Relay, On-Off
A9013030
Manual
Dual Sensor
A9013001
24 VAC
Transformer
A3050050
Auto
S1 Supply
Black
White
Red
S2 Return
SP1
OK
ZCM End Switch
ES
ES
Pump Relay, On-Off
A9013030
RX
TX
RX
External
Display
Manual
Port 1
Port 2
Input 3
Port 3
Input 4
Port 4
4
Dual Sensor
A9013001
6
Port 4
5
Port 5
Port 5
Input 6
Port 6
Port 6
Input 7
Port 7
Port 7
Input 8
Port 8
Port 8
8
Input 5
1 2
3
4
Dry 24VAC 1 A max
Demand Output
Climate Cŏntrol Multifunction Controller
A8020000
S3 Supply
IP1
S4 Return
7
Note: Outdoor temp provided
with Climate Cŏntrol
Multifunction Controller
Black
White
Red
3
Port 2
Port 3
2
Input 2
OAS
OAS
Auto
1
Demand Input Dry Contact Only
ES
ES
TX
Port 1
C R
24 VAC
2A Max
ZCM End Switch
ON
RUN
Input 1
Pump Relay, On-Off
A9013030
Manual
Auto
Dual Sensor
A9013001
Black
White
Red
S5 Supply
SP2
S6 Return
Pump Relay, On-Off
A9013030
Manual
Auto
Black
White
Red
IP2
Wiring Schematic 14
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
189
Wiring Schematic 15
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3050050 50 VA Transformer
• A8020000 Climate Cŏntrol
Multifunction Controller
• A9013061 Snow-melt Control
Overview: Multiple zone control
and boiler enable using Uponor
Thermostats, Uponor Actuators,
the Uponor Zone Control Module
(ZCM) and the Multifunction
Controller to control radiant
and snow-melt supply water
temperatures.
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will close,
illuminating the red light on the
ZCM. When end switch closure
is detected, a contact will close
between the ES-ES terminals
on the ZCM, energizing the
Multifunction Controller. Following
this control procedure will eliminate
190
any “dead-head” circulator
conditions for radiant circulators
(SP1 and SP2). The actuators must
be open before these circulators
will operate.
In this schematic, power is applied
to the ES terminals by the Demand
terminals on the Multifunction
Controller, powered by an external
transformer. When the circuit is
completed between the control
and the ZCM, the appropriate
circulator will start along with
the mixing function based on the
user setup. When this occurs, the
secondary pump (SP1 or SP2) will
run continuously until the heat
demand has ended. At the same
time, the mixing devices (IP1 and
IP2) will become active. These will
automatically adjust themselves
to deliver the correct water
temperature based on the user
set-up information and the current
outdoor temperature. The boiler
will turn on and operate as the
Multifunction Controller determines
that hotter water is required for
mixing. Sensor S2 provides boiler
return water protection. This
sensor will not allow the injection
circulators to increase the water
temperatures unless the minimum
boiler return temperature is met,
eliminating low return water
temperatures and protecting the
boiler from flue gas condensation.
Sensor. However, snow melting
can be started manually if the
Snow-melt Control (A9013061)
and an optional remote push
button are installed. For automatic
operation, when moisture is
detected on the sensor, a contact
(green/white wires) will close to
start snow-melting operation.
When this happens, SP2 will turn
on and run until the sensor is
clear and the minimum run timer
(user-adjustable setting) has
timed out. Once the snow-melting
operation begins, the slab will heat
to the target melting temperature
(user adjustable setting). Once
this setting is reached, SP2 will
continue to run, but the injection
pump will turn off as to not add
any additional heat.
The boiler connections through
the on/off boiler relay are
considered “dry contacts.” This
means any wiring connected to
these terminals is unpowered and
will require an auxiliary power
source. In this schematic, power is
applied to these terminals by the
boiler operating control. In most
instances, power is supplied to
these contacts from a transformer
within the boiler control off the
T-T or R-G terminals. Consult the
heating equipment manufacturer’s
wiring schematics for the proper
terminals to energize the boiler.
In this schematic, snow melting
is set up for automatic operation
using the Automatic Snow Ice
Chapter 14 – Electrical
Electric Schematics
—
www.uponorpro.com
Boiler Relay, On-Off
A9012010
24 VAC
Transformer
A3050050
TT-A
TT-B
Manual
Dual Sensor
A9013001
Black
White
Red
S2 Return
Port 2
Input 3
Port 3
Input 4
Port 4
Input 5
Port 5
Input 6
Port 6
Input 7
Port 7
Input 8
Port 8
OAS
SP1
Pump Relay, On-Off
A9013030
Port 4
Port 2
Port 3
1 2
3
4
Dry 24VAC 1 A max
Demand Output
Input 2
Port 5
Port 1
Port 6
TX
RX
External
Display
Auto
S1 Supply
Port 1
RX
Port 7
OAS
TX
Manual
Auto
Dual Sensor
A9013001
Port 8
ES
ES
1 2 3 4
5 6
7 8
C R
24 VAC
2A Max Demand Input Dry Contact Only
ZCM End Switch
ON
RUN
N
Pump Relay, On-Off
A9013030
OK
Input 1
L
Boiler
Terminals
Black
White
Red
S3 Supply
IP1
S4 Return
Note: Outdoor temp provided
with Climate Cŏntrol Multifunction Controller
Climate Cŏntrol Multifunction Controller
A8020000
Pump Relay, On-Off
A9013030
Manual
24 VAC
Transformer
A3050050
Auto
Black
White
Red
Black/Red
Dual Sensor
A9013001
S5 Supply
SP2
S6 Return
Snow Melt Control
A9013061
Note: Snow Ice sensor must be powered
by dedicated transformer
Manual
SM
Sensor Slab
White/Green
Snow Ice Dector
A9013062
Pump Relay, On-Off
A9013030
Slab sensor
factory 60 ft. lead
Auto
Black
White
Red
Rough In Cup
A9013060
IP2
Wiring Schematic 15
Complete Design Assistance Manual
—
Chapter 14 – Electrical Schematics
191
Wiring Schematic 16
• A3030101 Uponor Thermostats
• A3010522 Thermal Actuators
• A3030003/A3030004 Zone
Control Module (ZCM)
• A3050050 50 VA Transformer
• A8020000 Climate Cŏntrol
Multifunction Controller
Overview: Multiple zone control,
multiple circulator control (SP1
and SP2) and boiler enable using
Uponor Thermostats, Uponor
Actuators, the Uponor Zone
Control Module (ZCM) and the
Multifunction Controller to
control radiant and domestic hot
water (DHW).
Sequence of Operation: On a call
for heat, the Uponor Thermostat
sends a signal to the Uponor
ZCM, illuminating the yellow light
on the ZCM. This call for heat
sends power to the actuator(s)
for that zone, energizing the
Y1-Y2 terminals on the ZCM. This
activates or opens the actuator(s),
allowing flow through these
loops on the manifold. Once the
actuator(s) have opened to a
minimal position, an end switch
inside of the actuator(s) will
close, illuminating the red light
on the ZCM. When end switch
closure is detected, a contact
will close between the ES-ES
terminals on the ZCM, energizing
192
the Multifunction Controller.
Following this control procedure
will eliminate any “dead-head”
circulator conditions for radiant
circulators (SP1 and SP2). The
actuator(s) must be open before
the circulator(s) will operate.
The ES terminals are considered
“dry contacts.” This means any
wiring connected to these terminals
is unpowered and will require an
auxiliary power source. In this
schematic, power is applied to
the ES terminals by the Demand
terminals on the Multifunction
Controller, powered by an external
transformer. When the circuit is
completed between the control and
the ZCM, the appropriate circulator
will start along with the mixing
function based on the user setup.
When this occurs, the secondary
pump (SP1 or SP2) will run
continuously until the heat demand
has ended. At the same time, the
mixing devices (valves) will become
active. These will automatically
adjust themselves to deliver the
correct water temperature based
on the user setup information and
the current outdoor temperature.
The boiler will turn on and operate
as the Multifunction Controller
determines that hotter water
is required for mixing. Sensor
S2 provides boiler return water
protection. This sensor will not
allow the modulating valves to
increase the water temperatures
unless the minimum boiler return
temperature is met, eliminating
low return water temperatures
and protecting the boiler from
flue gas condensation.
Also connected to the
Multifunction Controller is
domestic hot water (DHW) when
using an indirect water tank.
The Multifunction Controller can
control the DHW either through
a 10K sensor (as shown) or an
internal aquastat included with the
hot water tank. When piped off
of a primary loop, the control will
automatically manage both the
hot water production and space
heating. If the internal target for
the primary loop cannot be met,
the control will begin to close the
mixing device(s). Once the DHW
tank is heated, the mixing device(s)
will return to normal operation.
Also shown in this schematic is
a separate Uponor Thermostat
used to control a separate radiant
circulator (ZP1). Power is supplied
to the thermostat from the demand
terminals of the Multifunction
Controller. When the thermostat
calls for heat and completes that
circuit, the circulator will start
and fire the boiler for the high
temperature requirement for
the baseboard.
Chapter 14 – Electrical Schematics
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Boiler Relay, On-Off
A9012010
Boiler
Terminals
DHW Sensor
A9012002
L
S1 Supply
N
S2 Return
TT-A
TT-B
Pump Relay, On-Off
A9013030
Manual
Black
White
Red
Auto
DHW Sensor
A9012002
PP
Pump Relay, On-Off
A9013030
50 VA
Transformer
A3050050
Manual
Black
White
Red
Auto
OK
ZCM End Switch
Pump Relay, On-Off
A9013030
ES
ES
Note: Outdoor temp provided
with Climate Cŏntrol Multifunction Controller
Port 1
Auto
Port 3
Input 4
Port 4
Port 4
Port 2
Input 3
Input 5
Port 5
Input 6
Port 6
Black
White
Red
Port 3
Port 2
Port 5
1 2
3
4
Dry 24VAC 1 A max
Demand Output
OAS
Input 2
Port 6
OAS
DHWP
Manual
Port 1
Input 7
Port 7
Port 7
W
RH
Input 1
TX
RX RX
External
Display
TX
Input 8
Port 8
Port 8
W
RH
1 2 3 4
5 6
7 8
C R
24 VAC
2A Max Demand Input Dry Contact Only
Thermostat
ON
RUN
SP1
Modulating Valve Control
A9063020
Manual
FB
Green
CNTL
White
Dual Sensor
A9013001
S3 Supply
Auto
S4 Return
PWR
Red
Pump Relay, On-Off
A9013030
Manual
Climate Cŏntrol Multifunction Controller
A8020000
Auto
Dual Sensor
A9013001
Black
White
Red
S4 Supply
S6 Return
Pump Relay, On-Off
A9013030
SP2
Manual
Auto
Black
White
Red
ZP1
Wiring Schematic 16
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Chapter 14 – Electrical Schematics
193
SetPoint 150 Controller
A3040150
C R R NO
5 6
S1
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
P1
Wiring Schematic 17
194
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SetPoint 150 Controller
SetPoint 150 Controller
A3040150
A3040150
C R R NO
5 6
C R R NO
5 6
S1
S1
Three-zone Multi-pump Relay A3080301
Transformer
C
L2
CP/
ZC L1
L N
Line Voltage
R
X2/
X1 ZR
T1
PR PR
C1
T1
C1
T2
T2
C2
C2
T3
C3
T3
C3
Boiler Control
P1
P2
Wiring Schematic 18
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Chapter 14 – Electrical Schematics
195
SetPoint 150 Controller
SetPoint 150 Controller
A3040150
A3040150
C R R NO
5 6
C R R NO
5 6
S1
S1
24 VAC
Transformer
A3050050
2 3 4
Yellow Wires
Yellow Wires
Red Wires
R
C
ES
ES
R1 R2 Y1 Y2
Red Wires
R1 R2 Y1 Y2
Yellow Wires
Yellow Wires
Red Wires
Yellow Wires
Red Wires
Yellow Wires
Red Wires
R1 R2 Y1 Y2
2 3 4
Red Wires
2 3 4
R
C
ES
ES
Boiler Control
Wiring Schematic 19
196
Chapter 14 – Electrical Schematics
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Heat-only Thermostat
A3030101
Rh W
Red Wires
Yellow Wires
Red Wires
Yellow Wires
24 VAC
Transformer
A3050050
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
Boiler Control
P1
Wiring Schematic 20
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Chapter 14 – Electrical Schematics
197
Heat-only Thermostat
A3030101
Heat-only Thermostat
A3030101
Rh W
Rh W
Thermal Actuator
A3010522
Thermal Actuator
A3010522
Red Wires
Yellow Wires
Red Wires
Yellow Wires
Red Wires
Yellow Wires
24 VAC
Transformer
A3050050
Thermal Actuator
A3010522
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
Boiler Control
P1
Wiring Schematic 21
198
Chapter 14 – Electrical Schematics
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Heat-only Thermostat
A3030101
Rh W
Red Wires
Yellow Wires
24 VAC
Transformer
A3050050
¾" Zone Valve A3070525
1" Zone Valve A3070526
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
Boiler Control
P1
Wiring Schematic 22
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Chapter 14 – Electrical Schematics
199
Heat-only Thermostat
A3030101
Rh W
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
Boiler Control
P1
Wiring Schematic 23
200
Chapter 14 – Electrical Schematics
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Rh W
Rh W
Rh W
24 VAC
Transformer
A3050050
2 3 4
Red Wires
R
C
ES
ES
Transformer
Yellow Wires
R1R2Y1Y2
Yellow Wires
R1R2Y1Y2
Red Wires
R1R2Y1Y2
Red Wires
2 3 4
Yellow Wires
Red Wires
2 3 4
Yellow Wires
Red Wires
Yellow Wires
Red Wires
Yellow Wires
R
C
ES
ES
C
N
N
L
L
G/T
R/T
*
3
5
6NO
4NO
6NC
4NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
P3
Rh W
Three-zone Multi-pump Relay A3080301
Transformer
AQ1
C
L2
CP/
ZC L1
X2/
X1 ZR
R
T1
PR PR
C1
T1
T2
C1
C2
P4
P1
P1
P2
T2
C2
T3
C3
T3
C3
P2
L N
Line Voltage
Boiler Control
Wiring Schematic 24
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Chapter 14 – Electrical Schematics
201
Heat-only Thermostat
A3030101
Heat-only Thermostat
A3030101
Rh W
Rh W
Red Wires
Yellow Wires
Red Wires
Yellow Wires
24 VAC
Transformer
A3050050
¾" Zone Valve A3070525
1" Zone Valve A3070526
¾" Zone Valve A3070525
1" Zone Valve A3070526
Transformer
C
N
N
L
L
3
G/T
R/T
*
5
4NO
6NO
4NC
6NC
Plug Relay
Single-zone Pump Relay
A3010100
*Factory-installed Jumper
Boiler Control
P1
Wiring Schematic 25
202
Chapter 14 – Electrical Schematics
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