A.O. Smith FPSH - 75 Owner's Manual

1PRINTED IN U.S.A. 0703 PART NO. 195785-000GAS MODELSFPSH - 75270 Serieswith Hot Surface IgnitionThank you for buying this energy efficient water hea

10INSTALLATION OF VENT SYSTEM, SIDEWALLWith the route of the venting system and selection of materialscompleted, as discussed in section of this manua

112. SELECTION OF MATERIALS• Cutting Device - Saw or Pipe Cutter• Deburring Tool, Knife, File, or Beveling Machine (2" andabove)• Brush - Pure Br

12 STEP ENOTE: Cans of cement and primer should be closed at all timeswhen not in use to prevent evaporation of chemicals andhardening o

13FOR YOUR SAFETY READ BEFORE OPERATINGWARNING: If you do not follow these instructions exactly, a fire orexplosion may result causing property dam

14TEMPERATURE REGULATION CAUTIONTHIS WATER HEATER IS EQUIPPED WITH AN ADJUSTABLETHERMOSTAT TO CONTROL WATER TEMPERATURE. HOTWATER TEMPERATURES REQUIR

15SERVICE SHOULD BE PERFORMED ONLY BY A QUALIFIEDSERVICE TECHNICIAN. READ THE GENERAL SAFETYINFORMATION SECTION FIRST.USERS OF THIS APPLIANCE SHOULD

16If the heater is to be shut off and exposed to freezingtemperatures, it must be drained. Water, if left in the tank andallowed to freeze, will dama

17TROUBLESHOOTINGFor your safety, water heater service should be performed only by a qualified service technician.Read the GENERAL SAFETY INFORMATION

18WATER HEATER CONTROLPROBLEM SOLUTIONAn open earth ground circuit to the 1. Check that the earth ground connection isignition system. properly connec

19LIMITED RESIDENTIAL GAS WARRANTYb. Shipping and delivery charges for forwarding the new water heateror replacement part from the nearest distributor

2*CAUTION HARNESS HAS 120 VAC. IN OPERATIONFIGURE 1REPLACEMENT PARTS AND DELIMING PRODUCTSReplacement parts and recommended delimer may be orderedthro

20A.O. SMITH WATER PRODUCTS CO., INC.5621 W. 115TH STREET • ALSIP, ILLINOIS 60803PHONE: 1-800-433-2545 • FAX: 1-800-433-2515 www.hotwater.com • E-MAIL

3 GENERAL SAFETY INFORMATIONEXTERNAL DAMAGEDo not operate the water heater until it has been fully checkedout by a qualified technician, if the water

4• Do not cover the instruction manual. Keep it on the side ofthe water heater or nearby for future reference.• Do obtain new warning and instructio

5CONFINED SPACEWhen drawing combustion and dilution air from inside aconventionally constructed building to a confined space, such aspace shall be pro

6REFER TO FIG. 1 FOR CONNECTION DETAILS. BEFOREATTACHING THE GAS LINE BE SURE THAT ALL GAS PIPE ISCLEAN ON THE INSIDE.TO TRAP ANY DIRT OR FOREIGN MAT

7BETWEEN THE RELIEF VALVE AND TANK. DO NOT PLUG THERELIEF VALVE.The drain line connected to this valve must not contain a reducingcoupling or other r

8NOTE: This unit can be vented using only PVC (Class 160,ASTM D-2241; Schedule 40, ASTM D-1785; or Cellular CoreSchedule 40 DWV, ASTM F-891), Schedule

93. Make sure that plastic tubing is still attached to the pressureswitch and fan housing. Also make sure that wiring connectorfrom motor to control