Section I General Information; Introduction; Warranty Summary; Maintaining Proper Water Chemistry - Hayward H135ID Service & Installation Manual

SECTION I. GENERAL INFORMATION

INTRODUCTION:

This manual contains instructions for installation, operation, maintenance, troubleshooting, and parts lists
for the safe use of the swimming pool/spa/hot tub heaters. Hayward strongly recommends that the installer
read the manual before installing the swimming pool/spa/hot tub heater. If after reviewing the manual any
questions remain unanswered, contact the factory or local representative. Following heater installation, the
installer should leave all manuals with the consumer for future reference.
LIMITED WARRANTY SUMMARY:
Hayward warrants the pool/spa/hot tub heater to be free from defects in materials and workmanship, and
will within one year from date of installation for all users, for the original purchaser, repair or, at our option,
replace without charge any defective part. Hayward further warrant that if the heat exchanger or exchanger
headers (water-containing section) leak within one year from date of such installation for all users, due to
defects in materials and workmanship, Hayward will provide a replacement part. Cost of freight, installation,
fuel, and service labor (after one year) is at user's expense. For full details of warranty agreement, see war-
ranty certifi cate included in this manual.
If the pool/spa/hot tub heater is damaged or destroyed by improper maintenance, exces-
ATTENTION:
sive water hardness, incorrect water chemistry, or freezing it is not covered under the manufacturer's
warranty.

MAINTAINING PROPER WATER CHEMISTRY:

WARNING: Failure to maintain proper water chemistry may cause premature
heat exchanger damage or failure.
The heat exchanger in your Hayward pool heater is made from the highest quality of copper and nickel
(Cupronickel) materials. The premium materials and the exacting processes used in the manufacture of the
heat exchanger is state of the art in pool heater design and manufacture. Yet, it remains vital that the heat ex-
changer be protected from damaging or corrosive chemicals, insuffi cient water fl ow or improperly balanced
water chemistry. Heat exchanger damage or failure resulting from improper fl ow, improperly balanced pool
water or the improper addition of sanitizer into the water is NOT covered under the terms of your warranty.
The following factors are critical to heat exchanger protection. Follow these guidelines to help prevent
pre-mature damage or failure to your heater and heat exchanger.
1. WATER FLOW THROUGH HEATER
Water must be fl owing through the heater at the minimum rated fl ow rate during operation. Check that
the pump is operating and the system is fi lled with water and purged of all air prior to starting the heater.
The minimum rated fl ow rate is listed on page 15. Some installations may require an adjustment to the water
pressure switch for proper low-fl ow protection. Test your system and if necessary, adjust the water pressure
switch as described on page 22.
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-355-7995 www.hayward-pool.com
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