Install Instructions
Table Of Contents
- Cover
- TABLE OF CONTENTS
- SECTION 1 GENERAL INFORMATION
- SECTION 2 LOCATING THE BOILER
- SECTION 3 AIR AND VENTING
- SECTION 4 GAS CONNECTIONS
- SECTION 5 PUMP REQUIREMENTS
- SECTION 6 WATERCONNECTIONS
- SECTION 7 ELECTRICAL AND WIRING DIAGRAMS
- SECTION 8 THE DIGITAL DASHBOARD
- SECTION 9 INITIAL STARTUP
- SECTION 10 MAINTENANCE
- SECTION 11 OPERATING DETAILS AND TROUBLESHOOTING
- SECTION 12 REPLACEMENT PARTS
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P2
P1
FACTORY INSTALLED JUMPERS:
R
Y
O
Y
O
R
PV4
24V(-) PV2
PV1
24VAC
120VAC
NEUTRAL
AUX POWER
SYS PUMP
OAS
COM
WWSD
INTERLOCK
FIELD
DHW
TT
Boiler
Controller
O
Y
R
P
O
O
24V (L)
PILOT VALVE
24V (L)
MAIN VALVE
24V (N)
Y
GAS VALVE
S
BLOCKED VENT
SWITCH
SWITCH
ROLL OUT
24VAC
120VAC
R
O
A
A
OAS
COM
WWSD
X1
X2
X4
Y
Y
R
R
CONNECTOR
DAMPER
O
Y
Y
R
R
R
R
TRANSFORMER
BOILER PUMP
CONNECTION
CUSTOMER
POWER
DHW
Figure 22. - Wiring Diagram
7.F Wiring Diagram
LAARS Heating Systems