Satchwell
BFB
BRC
DDU, DU, DUS
MN-Sx
TM
BONSAI®PRO FAN COIL CONTROL LOOP
Bonsai is a small, high performance fan coil control loop solution, with
configurable Kv settings. The revolutionary valve design delivers fast,
accurate response, blockage free operation and superior reliability.
Bonsai is simple to install, can be configured in the field and gives
unrivalled environmental control.
The Bonsai PRO loop is configurable to suit your applications by
offering the latest technology and variable options. Select from a
choice of controllers, valves and sensors to build your control loop. The
control loop can be programmed locally and can be connected to a
Satchwell Σ (Sigma) or Satchwell MicroNet system if required.
Alternatively it can be left to function stand-alone.The controller meets
the latest CEN application requirements and offers low cost
engineering without maintenance. The patented valve design ensures
long trouble free life by maximising the flow path orifices.
.
FEATURES
•
•
•
•
•
Patented Fluid Control Methodology
Three main valve parts ensures reliable operation
Ultra Low torque valve requirement/Low to silent operation
High speed of response
Dramatically reduces the chances of valve blockage
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Fully networkable controller
No user maintenance required
'Tool free' manual override
Position indication
Simple installation and automatic commissioning
Modified Equal Percentage characteristic
Valve and actuator IP 52
Market leading technology
Accurate performance across full ambient temperature range
Easy upgrade of old systems
Coil balancing bypass as standard
High resolution control
High differential pressure
Simple connection to controller
Controller tests and simulates operation to reduce
commissioning times
• Can be used on systems up to 10 Bar, 95°C
Data Sheets
DS 1.011 - DDU
F-26365 - DU, DUS
DS 10.000 - MN-Sx
DS 2.202A - Bonsai PRO Terminal Unit Controller
(MicroNet Systems)
DS 2.203A - Bonsai PRO Terminal Unit Controller
(Sigma Systems)
Multi-Lingual Instructions
MLI 2.202 - Mounting Information
(Bonsai PRO Controller)
MLI 4.102 - Mounting Information
(Valve/Actuator)
Satchwell
SPECIFICATIONS
Valve and Actuator
The following table specifies the available options and their Order Type numbers.
Valve and Actuator
Kvs a
% Let by Kvs
BFB1506
0.6
<1%
BFB1510
1.0
<1%
BFB1516
1.6
<1%
BFB1520
2.0
<1%
BFB1525
2.5
<1%
BFB1500
1.6, 2.0, 2.5b
BFB1501
a
b
c
Compatible with
15mm
0.6, 1.0
c
Bonsai BRC controllers
<1%
<1%
Kvs = Flow in m3 to produce a 1 bar pressure drop when the valve is fully open.
The BFB1500 can be fitted with any one of the three Kv clip pairs supplied.
The BFB1501 can be fitted with any one of the two Kv clip pairs supplied.
IP 52
Size (DN):
15mm
105mm
Pipe Connections:
15mm compression
Width:
75mm
-20°C to +50°C
Depth:
32mm
Operating Temperature
(Actuator):
Cable Length:
1.5m
Storage Temperature
(Actuator):
-40°C to +70°C
Control Medium:
Water or Glycol solution in water (25%
max, freeze protection)
Humidity (Operating and 95%rh non-condensing
Storage):
Protection Class:
Height:
Control Medium
Temperature Limits:
2°C to +95°C
Kvs:
0.6, 1.0, 1.6, 2.0, 2.5
Bypass Kvs:
70% of rated Kvs
Body Material:
Brass
Maximum Differential
Pressure:
10 Bar
International Pressure
Rating:
PN 10
Stroke (Control):
90° +0°, -1°
Angular Stroke (Manual): 91° +0.5°, -0° (actual max. 120°)
Angular Resolution:
0.5°
Stroke Time:
2 to 60s (adjusted at controller). 30s
default
Type of Operation:
Rotary
Rotary Speed (Standard): 200°/s ± 10°/s
Rotary Speed (Slow):
10°/s ± 5°/s
Accessories
BSA1501
Actuator 1.0m extension lead
Note: one lead per Actuator
BSA9502
Replacement Servo Motor
Pressure Equipment Directive 97/23/EC
We have reviewed the Pressure Equipment Directive (97/23/EC) in
detail for all Satchwell valves. As a result of this, we have come to a
conclusion that our valves are control valves, used in the operation of
water medium and installed to comply with the specified pressure in the
system. This is a device comprising castings or machinery where the
design considerations are based not on pressure but on the
requirements of strength, rigidity and stability. These valves fall into
article 3, para 3 of the PED where sound engineering practice has
been considered in design and manufacturing. We do not have to mark
these products with CE marking.
These valves are designed in accordance with "Sound Engineering
Practice" in a European member state and manufactured to comply
with all the relevant safety requirements.
All our actuators are designed and manufactured to comply with the
requirements of EMC and Safety Directives and carry a CE mark on
them. All our valves are suitable when used in conjunction with
actuators that are CE compliant.
2
Characteristic:
Modified Equal Percentage
Normal Supply Voltage:
Compatible with BRC-xxx-10x controller
Manual Override:
By movement of valve arm
Input Control Signals:
Proportional control, Pulse Width
Modulation only (1 to 2ms cycle at 5Vdc)
Cable Type:
3 core fly lead, with controller connection
Status Indication:
LED indication on controller
Position Indication:
Reference moving part to markings on
actuator body
Stroke Limiting Device:
Internal
Noise Level:
<30 dBA
Rotary Torque:
0.3Nm +0.05Nm
Direction of Rotation:
45° Clockwise, 45° Counter Clockwise
(90° total)
Controllers
The following table specifies the available options and their Order Type number.
Controllers
BRC-41N-100 - Controller with on/off control - 1 Relay: 4 pipe application preset
BRC-51N-100 - Controller with fan speed control - 3 Relays: 4 pipe application preset
BRC-41N-101 - Controller with on/off control - 1 Relay: 2 pipe application preset
BRC-51N-101 - Controller with fan speed control - 3 Relays: 2 pipe application preset
URC-IR-100 - Infra-red/RS 232 Receiver
URC-SET-100 - NCP Palm/Expert Commissioning Tool
Height:
111mm
Width:
155mm
Depth:
51mm
Control Range:
0 to 40°C.
Control Accuracy:
±0.5°C 18-24°C; ±1.0°C 14-18°C and 24-28°C; ±3°C other ranges.
Power Supply:
230Vac (±10% to -6%).
Fuse:
230Vac supply fused, 200mA.
Power Consumption:
230Vac @ 14VA maximum including outputs.
Power Failure Reserve:
E2PROM preserves configuration data and user settings.
Triac for Heater Battery:
24Vac Output - supplied externally
DU/DUS/DDU Sensor
Inputs/Outputs:
15Vdc power output (30mA max).
Resistive input (0-10,000Ω) for temp. measurement - 'T-type'.
Analogue (0-10Vdc) input for setpoint adjustment.
All analogue inputs smoothed.
Controller Mode Input (DI1):
Voltage-free input to override controller from comfort mode to economy or night mode, depending on
control application (see Note 1).
Normal input is closed (to 0V). Open circuit selects economy/night mode (see Note 2).
Changeover Sensor Input (DI2):
Voltage-free thermostat input for 2-pipe auto changeover control applications. Open circuit selects cooling
mode (see Note 3).
Network Interface:
RS 485 for optional networking to an Integration Controller on a Sigma network or to a MicroNet Manager
Interface (MN MI) on a MicroNet network.
DI2 can also be used for all applications except the two-pipe FCU application as an additional controller
mode input (which has the same effect as DI1 set with zero delay). DI2 is typically used for a time or
window switch.
Relay Outputs:
230Vac, 5A resistive. One on BRC-41N-10x, three relays on BRC-51N-10x. See Wiring Precautions on
Page 5.
NCP Palm Communications Port:
RS 485 port for connection to infra-red/RS 232 receiver module.
Ambient Temperature Limits:
Operating: 0 to +50°C.
Storage/Transit: -20 to +65°C.
Humidity Limits:
Up to 95% relative humidity non-condensing.
Terminals:
All input terminals accept one 2.5 mm2 wire unshrouded.
Associated Sensors:
DU4301, DUS4302 or DDU0001 (return air).
Comfort, economy heating and economy cooling setpoints individually settable to ±1°C using NCP Palm.
DUS 4302 sensor enables the comfort setpoint to be offset by ±3°C.
Economy heating setpoint = 10-24°C.
Economy cooling setpoint = 21-35°C.
Note: Setpoint is also adjustable using BCA1602 (see accessories)
MN-S1, MN-S2, MN-S3, MN-S4, MN-S4-FCS
Sensors with on/off/setpoint/override/controller mode functions/emergency heat key/indication
(as applicable).
Control Algorithm
Proportional + integral, or proportional only. Proportional band and integral action time adjustable.
IR Receiver
Read range 30cm.
Frost Limit:
Adjustable (default +10°C).
Case:
Moulded polycarbonate plastic case. Fire resistant to UL94V-0.
Protection Class:
IP 20.
Conduit Entries:
Not Applicable.
Mounting:
Wall mounting or DIN rail mounting.
Accessories
BCA1601
Controller Enclosure for field mounting
BCA1602
Bonsai Controller set point adjust module (+/-3°C)
BCA9202
Spare fuses (pack of 5)
Notes:
1. Frost protection is active in all modes (comfort, economy or night).
When the room temperature falls below the frost limit temperature
(default 10°C) heating begins. Heating ends when the temperature
increases 2°C over the frost limit (default 12°C).
2. The controller can be set up with a delay value applied to input DI1
to prevent a PIR or other occupancy sensor from continually
switching the controller between modes during the day.
3. If the DI1 input is not required, no 0V link is required, since the input
can be disabled from NCP Palm.
4. The controller can be configured to operate only in heating mode.
3
Sensors
The following table specifies the available options and their Order Type number.
Sensors
Compatible with
DDU0001 - FCU Air Temperature Sensor
DU4301 - Room Temperature Sensor
DUS4302 - Room Temperature Sensor with remote Set Point adjustment
MN-Sx Sensor range (MN-S5 not supported)
BRC, URC, MN
Protection Class: DU, DUS, DDU
-
IP 10
MN-Sx-100, MN-S4-FCS
-
Conform to NEMA-1 requirements.
DU4301
-
337-4-301 - Unifact Room Sensor
DUS4302
-
337-4-302 - Unifact Room Sensor with set point adjustment
DDU0001
-
Return Air Sensor
MN-S1
-
Sensor only
MN-S2
-
Sensor with override
MN-S3a
-
Sensor with setpoint adjustment and override
MN-S4a
-
Sensor with setpoint, override and controller mode functions
MN-S4-FCSa
-
Sensor with setpoint, on/off and Fan speed functions
DU, DUS
-
-5 to 50°C
DDU
-
-5 to 40°C
MN-Sx, MN-S4-FCS
-
0 to 50°C
DU, DUS, DDU
-
-3 to +3°C from current Bonsai set point value.
MN-Sx, MN-S4-FCS
(Not MN-S1)
-
Setpoints, input spans and units vary with the controller application.
Range: -99 to 999 or -9.9 to 99.9
Units: °F, °C, or %.
Power Supply:
DU, DUS, DDU
-
15Vdc from Bonsai PRO controller
Housing:
DU, DUS
-
Tough plastic case and backplate. Fire resistant to UL94 V-0.
DDU
-
Plastic moulding, Polyamide (PA6), Screw No. 6 x 1½" Posidrive, Fly lead: 2 core 1.5m long.
DU, DUS, DDU
-
One x 1.5mm2
MN-Sx, MN-S4-FCS
-
Four screw terminals max. cable size 1mm2
-
Negative temperature coefficient thermistor
-
DU 3 wire low voltage dc (15Vdc)
DUS 4 wire low voltage dc (15Vdc)
DDU 2 wire non polarised
Types:
Sensing Range:
Adjustment:
Terminals:
Sensing Element:
Wiring:
a
DU, DUS, DDU
Allows viewing of alarms and diagnostics.
Accessories
DU, DUS:
837-1-203
Guard kit
MN-Sx, MN-S4-FCS
AT-1104
Cast aluminium guard
AT-1155
Plastic guard
AT-1163
Wire guard
MNA-STAT-1 Replacement covers
MNA-STAT-2 Designer inserts for MN-S1 model
4
INSTALLATION
VALVE FITTINGS
Wiring Precautions
Typical fittings to convert from BSP male to compression coupling for
copper tube.
WARNINGS ELECTRICAL SHOCK HAZARD, REMOVE ALL POWER FROM
BOTH THE CONTROLLER AND RELAY OUTPUTS BEFORE
MAKING TERMINATIONS.
THE BONSAI PRO CONTROLLER OPERATES AT 230Vac. LOCAL
WIRING REGULATIONS AND USUAL SAFETY PRECAUTIONS
MUST BE OBSERVED. DO NOT EXCEED RATED VOLTAGES.
WARNING - TO AVOID POSSIBLE CONTACT WITH MAINS
VOLTAGES, WHEN WIRING IS COMPLETE, ENSURE THAT THE
TERMINAL SHROUD IS CORRECTLY FITTED AND THAT THE
MAINS AND RELAY TERMINALS ARE COVERED.
Valve Size
Copper Tube
Typical fittings
½"
15mm
Conex Type: 303
The above fittings are straight couplings including nut and olive. Use a
fibre washer.
Typical fittings to convert from ½" BSP male parallel threaded valves.
Pipe Material
Pipe
Size
Serto Part No.
Valve
Connection
Copper
15mm
SO21-15-1/2
½"
Steel
BSP Male Taper
Thread
15mm
SO1621-15-1/2-1/2
½"
Steel
BSP Female
Parallel Thread
15mm
SO1721-15-1/2-1/2
(requires copper
washer 40005-15-1/2)
½"
These fittings are not stocked by Satchwell; obtain from your nearest
Serto stockist.
WIRING LENGTHS
Wiring from
controller to:
Maximum length for Maximum resistance
1.5mm2 core cable per conductor
Sensors
DU
DUS
DDU
300m
300m
1.5m (Fly lead)
15Ω
10Ω
15Ω
S-Link
61m
150Ω (max resistance
across contacts is
300Ω)
Occupancy
sensor/switch
1500m
150Ω (max resistance
across contacts is
300Ω)
Actuators
Preset at 1.5m
Only Bonsai
valves/actuators can
be used with the
Bonsai PRO controller.
Relay Outputs
100m
5Ω
RS 485
Communication
Network
Twisted Pair Screened. Use Belden 8762
cable. Maximum length 1000 metres
Cautions
Where length exceeds figures in column 2 up to a maximum of
300m, select cable size to comply with resistance in column 3.
The controller must be located as far away as possible (150mm
minimum) from any contactors/switches and their associated
cabling, as the contactors/switches may cause interference when
they operate.
Allow enough clearance around the controller to accommodate
programming tools and cables (75mm at top and bottom and
100mm at the right hand side).
No connections can be made to the controller whilst ANY power
is applied to it. This includes the relay outputs.
Do not route relay output wiring with any other controller wiring.
Do not route triac output wiring with any other controller wiring.
Do not route power and output wiring with signal wiring.
Do not run Extra Low Voltage (24Vac or less) wiring in the same
harness as mains wiring.
5
TYPICAL INSTALLATION DIAGRAM
BFB
BRC
Maximum 30 cm
MN-Sx
NCP Palm Engineering Guide
DDU0001
DU4301, DUS4302
GENERAL WIRING
DIAGRAM
Bonsai Controller
Signal
Orange Red
Brown
Fan Coil Unit
6
Good Design Practice
Control Medium
Only the control mediums specified on Page 2 should be used.
Other fluids - e.g. sea water, oils etc. Satchwell cannot accept
responsibility for use of these valves with fluids other than those listed
on Page 2. Detailed specifications of all materials in contact with the
fluid are given in the specifications on Page 2 and it is the responsibility
of the specifier to check their suitability.
The valves are intended for use in closed circuits, if the circuit is open
it is possible that a build up of mineral deposits may impair the
operation of the system and frequent maintenance may be necessary.
Appropriate precautions should be taken. Ensure that water treatment
is employed (scale inhibitors).
Valve Sizing
For valve sizing information see data sheet DS 4.950.
Planning the Installation
In planning the pipework layout, the following considerations apply
when deciding on the valve position:
• Allow sufficient access for actuator fitting and removal.
• Do not mount the valve/actuator vertically downwards to avoid the
risk of condensation or leakage damaging the actuator.
• Observe the upper ambient temperature limitation of the actuator
(50°C).
• Observe the correct direction of flow through the valve as indicated
by the arrows cast on the body and port numbering.
• It is strongly recommended that strainers should be fitted to protect
the valves. When strainers are fitted the following recommendations
should be observed:
– Strainer bodies for line sizes up to DN 50 (50mm) should be
Bronze to BS 1400, PB1 or Cast iron to BS 1452, class 180.
– Strainer pressure ratings should be at least 150% of the
maximum pressure expected in the application.
– Strainer screens should be of a suitable stainless steel
construction.
– The strainer screen should have a free area at least 250% of the
line cross sectional area.
– The screen perforation diameter should be in the range of 0.7 to
0.9mm for sizes up to DN 50 (50mm).
– Strainers should be installed in parallel to enable online
maintenance to be carried out.
– The valves should be sized to account for the increased
pressure drop.
• Ensure that the system is efficiently vented.
Fitting the Kv Clips (BFB1500 and BFB1501 only)
1. Rotate the 'moving part' such that the valve is fully open (as can be
observed by looking through Port 2).
2. Rotate the 'fixed part' (from both sides) to the correct angle for the
selected pair of Kv clips.
View of Valve/Actuator from above,
prior to fitting Kv clips
Press clip home
firmly (both sides)
Caution
The system should be thoroughly flushed out to remove foreign
matter before fitting the valve, in accordance with BSRIA
Application Guide 1/89, contained within AG 8/91,
Pre-commission cleaning of water systems.
The fitting of strainers is NOT a substitute for flushing the system
out fully. Failure to fully flush the system can result in frequent
clogging of the strainers.
1. Installation should be carried out by skilled fitters only.
2. Observe the recommendations under good design practice.
3. Install the valve as close as possible to the air heater or cooler
being controlled.
4. With the valve in a horizontal pipe the actuator should preferably
be sited vertically above the valve. Under no circumstances
mount the assembly with actuator below the valve.
5. Allow a minimum clearance of 60mm above the actuator for fitting
and removal.
6. When all other unit valves are 2 port, the need for independent
control of the main water circuit volume and/or differential pressure
should be considered to maintain the pump head within reasonable
limits.
7. Excess actuator cable should be arranged in a loop and secured
with a cable tie such that there is no excess weight exerted on the
controller connections.
Commissioning
Check that the valve has been correctly installed in the pipework with
regard to the direction of water flow and the flow direction arrows on
the valve body.
Note:
Bonsai actuators and valves normally leave the factory connected
together. If this is so follow the 'Valve and Actuator Connected'
initialisation procedure. If for any reason the actuator is not connected
to the valve, follow the 'Valve and Actuator Disconnected' procedure.
Valve and Actuator Connected
1. Connect the valve/actuator combination(s) to the controller at
PL1(PL2).
2. Short circuit the controller sensor input by attaching a link between
pin 12 and pin 13. This will put the controller into actuator test
mode.
3. Power the controller on. After the initialisation delay, of 2 x Node
Address secs, the actuator/valve will move to the 50% position and
stay there during the time the shorting link is connected.
4. Remove the shorting link. The cooling valve end stops will be found
and stored, then those of the heating valve (if used).
5. The fan will then run for 10 seconds at speed 1; finally the controller
will enter normal operation mode.
Steps 3 to 5 of this procedure can be initiated at any time by resetting
the controller with the sensor input shorted.
Valve and Actuator Disconnected
1. Connect the actuator to the controller at PL1 or PL2.
2. Short circuit the controller sensor input by attaching a link between
pin 12 and pin 13. This will put the controller into actuator test
mode.
3. Power the controller on. After the initialisation delay, of 2 x Node
Address secs, the actuator will move to the 50% position and stay
there during the time the shorting link is connected.
Rotate
'fixed part'
anti-clockwise
(apply pressure
from both sides)
Caution
Once a Kv clip has been fitted to a valve, it must not be removed.
3. At each side, slide the Kv clip onto the fixed part. Push firmly until
fully installed on the metal studs. A click will be heard.
Installation
WARNING STEAM OR HOT WATER HAZARD. BEFORE REMOVING
ACTUATOR FROM VALVE OR OPENING VALVE, ENSURE THAT
THE VALVE CONTROL MEDIUM IS ISOLATED AND RELIEVE THE
PRESSURE. WORK SHOULD ONLY BE CARRIED OUT BY A
COMPETENT ENGINEER.
7
4. Insert a credit/phone card or similar sized card into the valve slot to
set the valve at 50%.
5. Position thrust washer on to valve moving part.
6. Connect the actuator to the valve and secure using four screws
and 'T' washers.
7. Remove the shorting link. The cooling valve end stops will be found
and stored, then those of the heating valve (if used).
8. The fan will then run for 10 seconds at speed 1, and finally the
controller will enter normal operation mode.
Steps 3 to 7 of this procedure can be initiated at any time by resetting
the controller with the sensor input shorted.
A periodic check of the valve should be made for general condition and
leakage.
Valve and Actuator Test
1. Short circuit the controller sensor input by attaching a link between
pin 12 and pin 13. This will put the controller into actuator test
mode.
2. The actuator/valve(s) will move to the 50% position and stay there
during the time the shorting link is connected.
3. Remove the shorting link.
4. The controller will enter normal operation mode.
CONTROLLER WIRING DIAGRAM
Bonsai Valve/Actuator
Bonsai Valve/Actuator
Orange
Red
Brown
Orange
Red
Brown
0V Ground
Heater Battery (Triac)
L (230VAC)
N
18
19
5 GND
20
RL1
21
6 DO1
Fan Speed 1
22
RL2
8 RS 485+
23
Fan Speed 2
10 15Vdc
230Vac
WARNING -
9 COM 0V
For connection
to DUS/DU/DDU
sensor (two
twisted pairs).
(See Note 4)
Also BCA1602.
230Vac
PL2 (-)
7 RS 485-
For controller
networking
Thermostat for 2-pipe
autochangeover applications
or window switch, zero delay
occupancy or fan coil monitor
switch.
PL1 (+)
RL3
24
11 RPW
25
Fan Speed 3
OBSERVE
WIRING
PRECAUTIONS
SHOWN ON
PAGE 5.
12 °C
13 COM 0V
14 DI2
15 DI1
Optional PIR or other occupancy
switch to select economy/night mode
(open circuit to select). Leave
unconnected if not required.
MN-Sx sensor using
twisted pair cable.
Relays 2 and 3 on
BRC-51N-10x only.
16 S-LK/COM 0V
17 S-LK
Notes:
1. Some of the above connections may not be needed, depending on the control application selected. Refer to DS 2.202/3A for details of the
connections required for each control application.
2. Screened cable is required only for network (RS 485) connections. This screen must be earthed at the Integration Controller (MN MI) end
only. At the BonsaiPRO controller end, ensure that the screen runs continuously through to the next controller in the network.
3. The 15V output may also be used to power a PIR, where appropriate.
4. DDU uses terminals 9 & 12, DU uses terminals 9, 10 & 12, DUS uses terminals 9, 10, 11 & 12, BCA1602 uses terminals 9, 10 & 11.
APPLICATIONS
BRC-41N-101 and BRC-51N-101
The following predefined control applications are available. For each
application, fan on/off control is available with the BRC-41N-1xx and
fan-speed control is available with the BRC-51N-1xx.
BRC-41N-100 and BRC-51N-100
2-Pipe Fan Coil Unit with Auto Changeover and Auxiliary Heater. This
uses a thermostat located in the water supply pipework to switch the
controller between heating and cooling modes. The controller can be
configured to operate in heating-only mode, if required. A triac output
can be used to control an auxiliary heater to supply additional heat.
4-Pipe Fan Coil Unit with Auxiliary Heater. The 4-pipe FCU control
application can control separate heating and cooling coils. A relay
output can, if required, be used to control an auxiliary heater to supply
additional heat if the heating coil cannot provide sufficient heat.
8
INTEGRATION CONTROLLER FUNCTIONS
Up to 80 controllers can be networked to a single Integration Controller
(IC-Unifact) in a Sigma network (or to a single MicroNet Manager
Interface (MN MI) in a MicroNet network). The Integration Controller
enables several pre-programmed controller functions to be used,
including the following:
• Valve/fan exercise
A signal from the Integration Controller can be sent to controllers at a
specified time to exercise the valves and fans.
• Load shedding
The Integration Controller can limit the heating/cooling control output
of a controller to a specified percentage of the maximum, based on the
outside air temperature measured by a network sensor. In a simple
2-pipe system, for example, the valve position could be limited to 75%
of its maximum.
• Free cooling
This is available if the fan coil has a fresh air inlet. The function enables
a zone to be cooled by using fresh air that is at a lower temperature
than the room temperature. The Integration Controller receives the
outside air temperature from a network sensor and, if appropriate,
places the controller into free cooling mode.
• Fire override
Following a fire override signal from a Sigma front-end PC, the
Integration Controller forces the controller to stop the fan and all
heating/cooling.
• Summer/winter setpoint compensation
The Integration Controller receives the outside air temperature from a
network sensor and can increase the controller’s comfort setpoint
when the outside air temperature increases. This is based on the
principle that the room temperature can be higher in summer, since
people are using lighter clothing.
9
DIMENSION DRAWINGS
155
51
Valve/Actuator
1500mm
Fly Lead
32
135
55
40
105
95
111
75
Allow 100mm for access
Sensors
DU, DUS
Accessories
BCA1601
MN-Sx
80
24
76
60
DDU0001
118.5
82.5
121
48.5
38
47
9
21
10
1500mm
Fly Lead
Dimensions in mm
WARNINGS STEAM OR HOT WATER HAZARD. BEFORE REMOVING ACTUATOR FROM VALVE OR OPENING VALVE, ENSURE THAT THE VALVE CONTROL
MEDIUM IS ISOLATED AND RELIEVE THE PRESSURE. WORK SHOULD ONLY BE CARRIED OUT BY A COMPETENT ENGINEER.
AVOID CONTACT WITH HOT PIPEWORK.
ELECTRICAL SHOCK HAZARD. REMOVE ALL POWER FROM BOTH THE CONTROLLER AND RELAY OUTPUTS BEFORE MAKING TERMINATIONS.
THE BONSAI PRO CONTROLLER OPERATES AT 230Vac. LOCAL WIRING REGULATIONS AND USUAL SAFETY PRECAUTIONS MUST BE OBSERVED.
DO NOT EXCEED RATED VOLTAGES.
TO AVOID POSSIBLE CONTACT WITH MAINS VOLTAGES, WHEN WIRING IS COMPLETE, ENSURE THAT THE TERMINAL SHROUD IS CORRECTLY
FITTED AND THAT THE MAINS AND RELAY TERMINALS ARE COVERED.
Cautions
• Allow enough clearance around the controller to accommodate programming tools and cables (75mm at top and bottom and 100mm at the right
hand side).
• Do not apply any voltages until a qualified technician has checked the system and the commissioning procedures have been completed.
• Wiring precautions shown on Page 5 must be observed.
• Check that the actuator mounting screws are present.
• Ensure that only the recommended fittings are used e.g. Serto.
• If any equipment covers have to be removed during the installation of this equipment, ensure that they are refitted after installation to comply with
UL and CE safety requirements.
• Bonsai Controllers and the Bonsai Valve/Actuator combination are only suitable for use with each other. They are NOT suitable for use with any
other valves or controllers.
• Do not exceed maximum ambient temperature.
• Interference with parts under sealed covers invalidates guarantee.
• Design and performance of TAC Satchwell equipment is subject to improvement and therefore liable to alteration without notice.
• Information is given for guidance only and TAC Satchwell does not accept responsibility for the selection and installation of its products unless
information has been given by the Company, in writing, relating to a specific application.
• A periodic system and tuning check of the control system is recommended. Please contact your local sales office for details.
Copyright © 2005, TAC AB
All brand names, trademarks and registered trademarks are
the property of their respective owners. Information contained
within this document is subject to change without notice. All
rights reserved.
DS 4.102
12/05
TAC Headquarters
Malmö, Sweden
+46 40 38 68 50
Satchwell Helpline
+44 (0) 1753 611000
satchwell.info@uk.tac.com
www.tac.com
Satchwell