51
Wiring Diagram for External Options
Solenoid Valve
[CN238]
SV
[CN237]
Pump
[CN236]
O / S
[CN235]
0 - 10 V
[CN234]
LWCO
[CN233]
T - T
[CN232]
A / H
[CN231]
24VAC
OUT
External Pump
Outdoor Temperature Sensor
Heat Demand (0-10 VDC)
LWCO
Heat Demand (T-T)
Air Handler
(
(
)
)
* Air Handler Terminal: [I:08_Air] should be “on” in
Installer Mode to activate this terminal.
** External Pump Terminal: [I:09_EP] should be “on” in
Installer Mode to activate this terminal.
Connection Item
Pages
Note
[CN231]
24VACOUT
24 VAC for LWCO
44-45
[CN232]
A/H *
Air Handler
62, 77
[CN233]
T-T
Heat Demand
Input (T-T)
75-77
[CN234]
LWCO
LWCO
44-45 The factory
installed a
jumper on the
terminals.
[CN235]
0-10V
Heat Demand
Input
(0-10 VDC)
57-58 This terminal
has electrical
polarity.
[CN236]
O/S
Outdoor
Temperature
Sensor
53-56
[CN237]
Pump **
External Pump
62, 75,
77
120 VAC / Max
2.0 A
[CN238]
SV
Solenoid Valve for
Quick Connect
Multi System
51-52,
79
120 VAC / Max
1.5 A
11.2 Quick Connect Cord
NOTE
The Quick Connect Multi System
allows the installation of two units
together utilizing only the Quick
Connect Cord.
For Quick Connect Multi-System
installation only use the Quick Connect
Cord, sold separately (See the optional
accessory list on page 5).
NOTE
When connecting two units, use only
the Combi Boiler’s Operation Display.
This system is operated by the Combi
Boiler’s Operation Display. Don’t
connect the remote controller to the
other unit.
Electrical Shock Hazard
Do not turn power on until electrical wiring is
finished. Disconnect power before servicing.
Failure to do so may result in death or serious
injury from electrical shock.
WARNING
1.Red
2.Black
3.White
4.Green
5.Blue
6.Blue
1.Red
2.Black
3.White
4.Green
5.Blue
6.Blue
1.Red
2.Black
3.White
4.Green
5.Blue
6.Blue
1.White
2.Green
3.Red
4.Black
5.Blue
6.Blue
A
B
Quick Connect Cord
“Quick Connect Cord-2” tag
• The wire coloring on the Quick Connect Cord
will not be the same as the wire coloring of the
connection plug inside the unit.
Connecting the Quick Connect Cord
1. Check the electrical power is disconnected from
the both units.
2. Remove the front cover (4 screws).
3. Pass the Quick Connect Cord through the wiring
throughway and into the unit.
4. Plug the connector on the Quick Connect Cord
to the connector inside the unit.
5. Connect the ground wire (gray color wire) to the
screw at the base of the unit.
NOTE
If the ground wire is not attached,
electrical noise may cause problems.
Connecting Electricity
Summary of Contents for GHQ-C3201WX-FF PB US
Page 9: ...9 Memo About the Combi Boiler ...
Page 84: ......