H B X C P U - 0 6 0 0 C o n t r o l
V e r s i o n 1 . 0 . 0
Page 4
WIRING
We recommend all signal wiring to be a minimum of 18AWG shielded wire at a maximum of 500ft.
Modulation Output 1
Modulation Output 2
Modulation Output 3
Heat Demand
DHW Demand
Sensor Inputs 1
Sensor Inputs 2
Staging Output 1
Staging Output 2
Staging Output 3
Staging Output 4
Supply Power 120 VAC
Pump Output 3
Pump Output 2
Pump Output 1
DO NOT CONNECT
POWER HERE
GR
POWER
120
17
N
L
16
15
5A
1
Pump 1
9 10
1
2
Pump 2
11 12
2
5A
HBX
CPU-0600
Central Processing Unit
0
8
7
I
HD
0
10
9
I
Demand
Inputs
1
12
11
2
13
Sensor
Inputs
3
15
14
4
16
Sensor
Inputs
2
1
1
4
3
2
6
5
3
Mod Staging
Ouput
4
STG 4
7 8
4
3
5 6
3
2
3 4
2
1
1 2
1
Staging Output
STG 3
STG 2
STG 1
5A
3
Pump 3
13 14
3
CPU-0600
Input Power
DHW
Class 2 Circuits
Class 2 Circuits
WIRING AND INSTALLATION
CPU-0600 Installation
The CPU-0600 is designed to be wall mounted or installed in a separate electrical enclosure. The
unit should be installed inside and protected from falling water and high humidity conditions.
With all the covers in place, it is designed to protect any individual from accidental electrical
shock. It is not suitable for installation in hazardous locations and should not be close to any
electromagnetic fields.
• Identify the four mounting holes on the CPU-0600, mark on the wall the desired location of
mounting
• Pre-drill, anchor and fasten four screws for mounting
• Hang CPU-0600 and fasten tight to desired locations
• Complete wiring connections in accordance with terminal locations
MOUNTING
HOLES
2. DEMAND OUTPUTS
7,8:
Demand signal 1: Apply a heat demand from a dry
contact or 24v
9,10:
Demand signal 2: Used for DHW or setpoint demand
3. SENSOR INPUTS
11, 12:
Boiler Temperature in Staging Mode. Setpoint 1
temperature in DiFF/Dual Setpoint Mode.
12, 13:
System temperature in Mixing Mode. Setpoint 2
temperature in DiFF/Dual Setpoint mode.
14, 15:
Outdoor temperature.
15, 16:
Used for DHW tank temperature.
1. MODULATING OUTPUTS
1, 2:
(0-10 VC) Can be used for a modulating boiler or valve
3, 4:
(0-10 VDC) Can be used for a modulating boiler or valve
5, 6:
(0-10 VDC) Can be used for a modulating boiler or valve
5. AUXILIARY OUTPUTS
9, 10:
Aux 1 - Can be used as a system pump, Injection pump
11, 12:
Aux 2 – Can be used as a system pump, DHW pump, Boiler
pump, Valve up
13, 14:
Aux 3 - Can be used as a system pump, DHW pump, Boiler
pump, Valve down
6. INPUT POWER
15, 16, 17:
120 VAC +/- 10% 50/60Hz 15A Max
4. STAGING OUTPUTS
1, 2:
Boiler Stage 1 (Primary) or Stage 5, 9, 13 (Secondary)
3, 4:
Boiler Stage 2 (Primary) or Stage 6, 10, 14 (Secondary)
5, 6:
Boiler Stage 3 (Primary) or Stage 7, 11, 15 (Secondary)
7, 9:
Boiler Stage 4 (Primary) or Stage 8, 12, 16 (Secondary)
