Quick Reference Boiler Piping and Wiring Guide
COMBI BOILER
SINGLE ZONE WITH CLOSELY SPACE TEES
10()11.ER PUMP SETTING
Heat Cal
FLAME
CHIPUMP
DHWPU
p
Ct-M
ON
ON
OFF
CH-2
ON
ON
OFF
DtilW
OfF
Oti
ON
• No Pump Setting C hanges Needed With This Configuration
CH2
System
Thermostat
Sensor
6
5
4
3
X5
f-----;-----f\- •
. .
(S)
(S) (S) (S)
- - - -
Modulation
Signal
2
1
• -f}----;----
(S) (S)
- -
CH1
Outdoor
Thermostat
Sensor
4
3
2
1
DHW
Sensor
o,
P,quastat
2
1
Modbus
•
G
-
3
2
1
I
I
I
I
I
I
I
I_
--
@:ill
········-···············-···········-··············----·--··--··-·
I ___
J
4
See appendix for listing of additional components.
Po�er
120VAC
