Installation Guide

64 Rinnai I-Series Condensing Boiler Combi Manual
Devices such as the room thermostat, outdoor temperature sensor, zones pumps, and relay
controls are connected to the boiler PC Board.
□
Conrm that the electricity is supplied from a 120 VAC, 60 Hz power source and is in a
properly grounded circuit.
□
Conrm that an extension cord or adapter plug has NOT been used with the boiler.
□
Conrm connecon terminals are connected correctly.
PC Board
❼
❻
❹
❺
❽
Item # Connecon Item Note
Internal Pump Connecon 120 VAC
External Pump Connecon 2 120 VAC, Max 2.0 A
External Pump Connecon 1 120 VAC, Max 2.0 A
T/T 1 Connecon
T/T 2 Connecon
LWCO (High Limit or Other
Safety Switch)
Included Jumper
from Factory
Outdoor Temperature Sensor
24V AC for External Output Max 0.7 A
❶
❷
❸
❹
❺
❻
❼
❽
❶
❷
❸
• Rinnai recommends the use of spade connectors or
similar components for wiring to the screw terminals.
• Ensure that the insulaon of the wire is not exposed
to contact any other components besides the
terminal.
• If exposed wiring contacts to any other exposed
wiring or metal components, an electrical short may
occur and cause damage to the PCB or other
connected components.
• Use proper size of screwdriver for prevenng the
screw on the terminal from breaking.
• Do not use an electric or torque screwdriver for
wiring on the PC Board.
• Wiring should pass through the grommets provided
at the boom of the boiler.
• Use proper diameter and size of wiring.
CAUTION