Ref. STG-01-N-N-0-N-N-120-24-120-ND-000
CENTRAL PROCESSING UNIT
CPU 1000
HBX
10 A
10 A
20-240 v
20-240 v
20-240 v
10 A
DO NOT
CONNECT
POWER
HERE
10 A
10 A
DO NOT CONNECT POWER HERE
1
2
3
4
5
6
7
8
9
10
12
13
14
DS
DS
DS
DS
DS
DS
TM
TM
TM
TM
TM
TM
RL
RL
RL
RL
1
1
2
2
3
3
1
1
2
2
3
3
1
1
2
2
11
15
16
17
18
19
20
120
L
21
22
23
120
N
GR
L
24
25
26
N
GR
L
27
28
120
120
N
GR
L
N
EXP-0300
HBX
GR
10 A
1 2
3 4
DS DS
1
10 A
1
1
5
6 7
8
120
L
N
9 10 11 12 13
120
GR
L
N
120
GR
HBX
EXP-0100
DO NOT
CONNECT
POWER
HERE
20-240 v
TM TM
1
EXPANSION MODULE
L
N
GR
EXPANSION MODULE
EXP-0300
HBX
DO NOT
CONNECT
POWER
HERE
20-240 v
10 A
10 A
1 2
3 4
5 6
7 8
1 2
3 4
TM TM
DS DS
RL RL
RL RL
TM TM
DS DS
1
1
1
1
1
1
2
2
1
1
EXPANSION MODULE
10 A
10 A
20-240 v
1
1
5
6 7
8
120
L
N
9 10 11 12 13
120
GR
L
N
120
GR
L
Setpoint2 Setpoint2
Contact 1 Contact 2
SETP
SEN 2
SETP
SEN 1
BOIL
SEN
OUT
SEN
Apply Control Signal or
Program for Permanent Heat
Demand
TH
SETP
SEN 3
Setpoint 3 Setpoint 3
Pump 1
Pump 2
Setpoint 1 Setpoint 1
Pump 1
Pump 2
BOILER
Hi Temp
System Pump
1
24 V AC
C
R
120 V AC
L
N
Title
Notes:
This is not an engineered drawing and does not necessarily include all the components for an entire system. It is intended
as a representative sample of how the control may be wired for a sample application. It is the responsibility of the installer
to seek professional advice and/or install the the system to meet all necessary codes for the jurisdiction of the actual
installation.
HBX
Control Systems Inc.
Staging Control, Single Stage Boiler, 1 Main HT
System Pump, Setpoints 1&3 are 120VAc and
setpoint 2 dry contact No DHW options - Elec
Date: 08/11/05
File No:
N
GR