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Weil-McLain PFG-7 manual

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Table of contents for the manual

  • Page 1

    P ar t No . 550-110-641/0605 Read all instructions befor e installing Installer Leav e all instruct ions with boiler for futur e referenc e. An y cla ims for dam age or sh ortage in shi pment must be filed immediat ely agai nst the transpor tation co mpany by the c onsignee. Owner Installation and serv ice m ust be performed by qualified contract[...]

  • Page 2

    P ar t Number 550-110-641/0605 2 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Codes Installation must comply w ith all local codes, laws, regu lations and or dinanc es. Als o Un ited Stat es N ational Fuel Gas Code ANSI Z223.1-latest edition. When re- quired, the installation must conform to Standard for Controls a nd Safet y De [...]

  • Page 3

    P ar t Number 550-110-641/0605 3 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Combustion air and ventilation openings Comb ustion air and ve ntilation openi ngs must compl y w ith Sec- tion 5.3, Air for Combustion and V entilation, of N ational Fuel Gas Code ANSI Z223.1-latest edition, or applicable local build- ing codes. Canadi[...]

  • Page 4

    P ar t Number 550-110-641/0605 4 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Chimney or vent requir ements (also refer to Breaching erection, P age 12) V enting must be insta lled acc ord ing to P ar t 7, V enting of Equipment, of N ational Fuel Gas Code, ANSI Z223.1- latest edition and applicable building codes. Canadian instal[...]

  • Page 5

    P ar t Number 550-110-641/0605 5 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Boiler foundation Never i nsta ll b oile r o n co mbus tib le flo ori ng or carpeting , even if a concrete or aerated foundation is used. S ev ere personal injur y , death or substantial property damage can result. 1. See Figure 1. A level c oncrete or[...]

  • Page 6

    P ar t Number 550-110-641/0605 6 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Figure 2a Minimum recommended pipe sizes (Supply and return sizes refer to minimum size of pipe connected to the boiler for 20°F temperature drop between supply and retur n.) Boiler piping connections to the heating system (refer to piping diag rams, P[...]

  • Page 7

    P ar t Number 550-110-641/0605 7 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al U se circulators or zone valves in each circuit for multiple circuit applications. Filling the system 1. Clos e manual air vent s, drai n cock, and autom atic air vent, if used. 2. Fill to correct sy stem pr essure. Correct pressure wil l var y with eac[...]

  • Page 8

    P ar t Number 550-110-641/0605 8 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Bypass piping Bypass piping is not normall y requi red on any baseboar d system. Bypass piping should be used for the following instal- lations. (Bypass, supply , and return piping should be same size.) 1. U se the piping shown in Figure 3 to pr otect: [...]

  • Page 9

    P ar t Number 550-110-641/0605 9 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al External heat exchangers The PFG boiler can be used w ith a storage tank/heat ex changer unit for domestic hot water . The boiler/tank combination should be installed and wired in ac cordanc e with the tank manufacturer’ s instructions, which will als[...]

  • Page 10

    P ar t Number 550-110-641/0605 10 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al If boi ler is to be pr opa ne fir ed , a co n v ers ion kit must be used. Failure to use kit or to proper ly in stal l kit w ill result in se vere personal injur y , death or substantial property damage. 3. Remov e jack et door and c onnect from gas v[...]

  • Page 11

    P ar t Number 550-110-641/0605 11 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Figure 5a Leak test valv e (model PFG-8 ONL Y) Figure 5 Gas supply piping[...]

  • Page 12

    P ar t Number 550-110-641/0605 12 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Draft hood installation Sec ure the draft hood to the ou tlet at the top of th e boil er with sheet metal screws. The bottom of the draft hood or “skirt” must hav e the clearance dimension above the jacket to p panel as indicated on the draft hood.[...]

  • Page 13

    P ar t Number 550-110-641/0605 13 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Figure 6 T ypical wiring – zoning with zone v alves Wiring multiple zones Re fer to zone valve manufacturer’ s literature for wiring and application. A separate transformer is req uired to power zone valves. Zoning w ith circulators requires a rela[...]

  • Page 14

    P ar t Number 550-110-641/0605 14 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al ❏ Check to make sure base insulation is secure. See "T o inspect base insulation," page 17. ❏ Boiler and heat distribution units filled with water? ❏ A utomatic air v ent, if used, open one turn? ❏ Air purged fro m system? ❏ Air pu[...]

  • Page 15

    P ar t Number 550-110-641/0605 15 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Also Refer to Ad ditional Instructions Shipped With The Boiler For Specific Contr ol Operation and T roubleshooting. V erify Proper Operation After Servicing. Y our boiler should be inspected, cleaned and , if n eces sar y , a djus ted once a year . A[...]

  • Page 16

    P ar t Number 550-110-641/0605 16 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Suggested Minim um Ser vice Sc hedule for Qualified Service T echnician Only Beginning of each heating season: 1. Annual service call by a qualified serv ice agency . 2. Check burners and flueways and clean if necessary . Re ference “T o clean boi[...]

  • Page 17

    P ar t Number 550-110-641/0605 17 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Check main burner flames: 1. Pr oper burner flame - Y ellow-orange streaks may appear - caused by dust. 2. Impro per flame a) Overfir ed - Flames large. b) U nderfired - Flames small. c) Lack of primar y air - Y ellow tipping o n flames; sooting [...]

  • Page 18

    P ar t Number 550-110-641/0605 18 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Inspect venting system: 1. Check v enting syste m at least once a month during heating season. W ith boiler in operation (at least 5 minut es), hold a candle or match below lower edge of draft hood “skirt. ” If flame is undisturbed or leans under [...]

  • Page 19

    P ar t Number 550-110-641/0605 19 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Common problems and possible solutions[...]

  • Page 20

    P ar t Number 550-110-641/0605 20 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Item Description Part Number 1 Draft hood: PFG-5 (7” x 7” dia x 24.45”) PFG-6 (8” x 8” dia x 27.80”) PFG-7 (9” x 9” dia x 31.05”) PFG-8 (9” x 9” dia x 36.55”) 450-021-200 450-021-201 450-021-202 450-021-205 2 Collector hood: PFG[...]

  • Page 21

    P ar t Number 550-110-641/0605 21 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al[...]

  • Page 22

    P ar t Number 550-110-641/0605 22 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al Factory Fire T ested Insulated Ext ended Jack et Built-In Air Separator Draft Hood (Shipped in separate carton) Combination Gas V alve N on-Linting Pilot Burner Aluminized Steel Burners Combination R elay R eceptacle and 40 V A T r ans- former Rela y H[...]

  • Page 23

    P ar t Number 550-110-641/0605 23 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al * Locate manual main Shu t-Off Gas V alve (where r equired) acc ording to local utility requir ements.[...]

  • Page 24

    P ar t Number 550-110-641/0605 24 PFG S erieS 7 G aS - Fired W a ter B oiler — B oiler M anu al[...]