Install Instructions

ManualsBrandsWeil-McLain ManualsBoiler PartsPCB Relay & Circulator Wiring Kit

Part Number 550-100-321/0520

80/120/155 Series 1 & 2 Boilers

P/N 640-000-132 PCB Relay & Circulator Wiring kit contents:

Description Qty.

Wiring Kit LC32 AUX 1

Instructions PCB Relay & Circulator Wiring 1

Tools required:

Flat blade screw driver

Phillips screw driver

Paper/pen

Boiler manual

Series

Identiﬁcation

Read the boiler rating label to determine the

model size and series number.

The rating label is located on the left side of

the boiler (outside).

System Circulator Wiring Kit

80/120/155 Series 1 & 2 boilers

P/N 640-000-132

You must read and have the appropriate

Boiler Manuals with you to proceed with

these instructions.

Follow all instructions in the appropriate

Boiler Manuals to access and service com-

ponents.

The Boiler Manuals are available on-line.

STOP!

Read before proceeding

Hazard deﬁnitions

The following deﬁned terms are used throughout this manual

to bring attention to the presence of hazards of various risk

levels or to important information concerning the life of the

product.

Indicates presence of hazards that will cause

severe personal injury, death or substantial

property damage.

Indicates presence of hazards that can cause

severe personal injury, death or substantial

property damage.

Indicates presence of hazards that will or can

cause minor personal injury or property dam-

age.

Indicates special instructions on installation,

operation or maintenance that are important

but not related to personal injury or property

damage.

These instructions must only be used

by a qualiﬁed installer/service techni-

cian

. Read all instructions completely before

beginning the installation. Failure to follow all

instructions can cause severe personal injury,

death or substantial property damage.

The boiler contains ceramic ﬁber and ﬁberglass

materials. Use care when handling these ma-

terials per instructions in the Boiler Manual,

available on-line. Failure to comply could

result in severe personal injury.

To the installer:

You must refer to the appropriate Boiler Manual to follow these instructions. DO NOT proceed with the replacement procedure with-

out having a Boiler Manual. These instructions must only be used by a qualiﬁed installer/service technician. Read these instructions

completely before beginning the installation. Failure to follow all instructions can cause severe personal injury, death, or substantial

property damage.

The boiler control module already has a connection point for the boiler circulator. This kit will provide a solution for op-

erating an additional circulator – the system circulator (not to exceed 3 amps). Use in conjunction with the boiler manual .

Instructions for Wiring an Additional Circulator

Summary of content (6 pages)

PAGE 1
System Circulator Wiring Kit 80/120/155 Series 1 & 2 boilers P/N 640-000-132 Instructions for Wiring an Additional Circulator The boiler control module already has a connection point for the boiler circulator. This kit will provide a solution for operating an additional circulator – the system circulator (not to exceed 3 amps). Use in conjunction with the boiler manual . You must read and have the appropriate Boiler Manuals with you to proceed with these instructions.
PAGE 2
Instructions for Wiring the System Circulator Replacement instructions Disconnect electricity to boiler. Failure to do so can cause severe injury, death, or substantial property damage ELECTRICAL SHOCK HAZARD - TURN OFF ALL POWER TO BOILER WHEN SERVICING. Failure to do so can cause severe injury, death, or substantial property damage. Wait until heat exchanger/boiler is cooled down before proceeding. Failure to do so can cause severe injury. The boiler contains ceramic fiber and fiberglass materials.
PAGE 3
Instructions for Wiring the System Circulator 3. Remove the one (1) Phillips head screw holding the control module in place, see Figure 3. Figure 3 Figure 5 Control in position to be removed. Moving control module to access wiring Lift to gain access to wiring 1 Installation of Circulator Wiring Kit 2 1. Control module can be moved so that there is easy access to open the control housing. 2. Remove terminal blocks from back of module. See Figure 6. The block with 2 black wires will no longer be used.
PAGE 4
Instructions for Wiring the System Circulator Figure 8 Figure 10 Kit wiring plugged into control module Control module open Side tabs 5. Close the control module housing, with wiring kit routed from the opening at bottom side. See Figure 11. Figure 11 Wiring (Red/Black) in exiting from PCB Figure 9 E Wiring Kit Inline Fuse Holder A C 6.
PAGE 5
Instructions for Wiring the System Circulator 7. Connect the wiring kit (Connection C) to incoming 120VAC power cable and (Connection D) to the control module, as shown in Figure 13. 11. Secure the terminal block (Connection E) of the wiring kit on the back of control module as shown in Figure 17. Reinstall the terminal which was removed in Step 2. Figure 13 Connect Wiring Kit to Power Supply Figure 17 Terminal block attached to back of control module Reinstall Relay Kit 8.
PAGE 6
Instructions for Wiring the System Circulator Figure 18 Field Installation wiring diagram for the Kit SYSTEM PUMP Fuse Hot Neutral LC32 Ground FIELD INSTALLATION WIRING 6 Part number 550-100-321/0520