Quick Reference Boiler Piping and Wiring Guide
HEAT ONLY BOILER
SINGLE ZONE WITH CLOSELY SPACED TEES
Heat,ca
CH�1
CH
,
2
DHW
IBOIILER PUM Fl Sl:TTING
FlAME
ON
ON
OFF
C!HPIUMP
ON
ON
OFF
DHWPUMP
0:FIF
OFIF
ON
I
• No Pump Setting Changes Needed With This Configuration
CH2
System
Thermostat
Sensor
6
5
4
3
X5
f----c--n -
- -
(S) (S)
(S) (S)
- - - -
Modulation
Signal
2
1
- -n----c---
(S)
(S)
- -
CH1
Outdoor
Thermostat
Sensor
4
3
2
1
DHW
Sensor
o,
.A,quasta
2
1
I
I
I
I __
-§]
Modbus
•
G
-
3
2
1
------------------------------------------------------------------------·
Po�er
120VAC
0
---------------------------------------------------------------
L ___ I
1 O
See appendix for listing of additional components.
SUPPIY
