Weil-McLain 6-20 Series operating instructions III. Water and steam trim, VI. Leak test procedure

Models: 6-20 Series

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LGBGas–fired boiler

LGBGas–fired boiler

These 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.

LGBControl-6toLGB-20Supplement

Series 2 Propane gas

CSD-1 Control System

Contents

 

I.

New installation

2

II.

Existing installation ....

4

III. Water and steam trim

 

 

components

4

IV. Gas piping

5

V.

Wiring

5

 

Sequence of operation

8

 

Wiring procedure

8

VI. Leak test procedure ...

10

VII. Operating instructions

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VIII.Parts list

12

Indicates presence of hazards that can cause severe personal injury, death or substantial property damage.

Indicates special instructions on installation, operation or maintenance that are important but not related to personal injury or property damage.

This Control Supplement must only be used by a qualified installer/service technician. Read these instructions completely before beginning the installation. Failure to follow these instructions can cause severe personal injury, death or substantial property damage.

Part Number 550-141-816/0798

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Weil-McLain 6-20 Series operating instructions III. Water and steam trim, VI. Leak test procedure, LGBGas-firedboiler