Weil-McLain PFG-7 Contents, Hazard definitions, Read before proceeding, Codes, 2-14, 15-19, 20-21

PFG Series 7 Gas-fired Water Boiler — Boiler Manual

Contents
Section I: Installation	2-14
Codes	2
Combustion air and ventilation openings	3
Select the boiler location	3
Installation clearances	3
Chimney or vent requirements	4
When removing boiler from common vent	4
Boiler foundation	5
Placing the boiler	5
Residential garage installation	5
Hydrostatic pressure test	5
Boiler piping connections	6
Recommended piping	6
Multiple zoning	7
Filling the system	7
Bypass piping	8
External heat exchangers	9
Freeze protection	9
Using with refrigeration system	9

Size and install gas piping	10-11
Draft hood installation	12
Spill switch installation	12
Damper installation	12
Breeching erection	12
Wiring	12
Install room thermostat	12
Wiring multiple zones	13
Canadian installations – chain and s-hook	13
Checkout procedure	14
Section II: Service	15-19
Section III: Replacement Parts	20-21
Section IV: Ratings, Dimensions	22-23

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 damage.

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

Read before proceeding

The boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructions on page 15 of this manual. Failure to comply could result in severe personal injury.

Do not use petroleum-based cleaning or sealing compounds in boiler system. Severe damage to system components can result, causing substantial property damage.

Read all instructions before installing. Failure to follow all instructions in proper order can cause severe personal injury, death or substantial property damage.

When calling or writing about the boiler— Please have the boiler model number from the boiler rating label and the CP number from the boiler jacket. You may list the CP number in the space provided on the

Installation and service certificate

found on page 14.

Codes

Installation must comply with all local codes, laws, regulations and ordinances. Also United States National Fuel Gas Code ANSI Z223.1-latest edition. When re- quired, the installation must conform to Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1. Safe lighting and other performance criteria were met with the gas manifold and control assembly provided on the boiler when the boiler underwent tests specified in ANSI Z21.13-latest edition.

Canadian installations must comply with CAN/CSA B149.1 or .2 Installation Codes. The equipment shall be installed in accordance with those installation regula- tions in force in the local area where the installation is to be made. These shall be carefully followed in all cases. Authorities having jurisdiction shall be consulted before installations are made.

 Part Number 550-110-641/0605