Raypak 336A - Manual (Page 2)

WATER CHEMISTRY
(Corrosive water voids all warranties)
For your health and the protection of your pool equipment, it is essential that your
water be chemically balanced. The following levels must be used as a guide for bal-
anced water.
Recommended Level(s) Fiberglass Pools Fiberglass Spas
Other Pool & Spa
Types
Water Temp. (Deg. F) 68 to 88 89 to 104 68 to 104
pH 7.3 to 7.4 7.3 to 7.4 7.6 to 7.8
Total Alkalinity (PPM) 120 to 150 120 to 150 80 to 120
Calcium Hardness (PPM) 200 to 300 150 to 200 200 to 400
Salt (PPM) 6000 MAXIMUM 6000 MAXIMUM 6000 MAXIMUM
Free Chlorine (PPM)* 2 to 3 2 to 3 2 to 3
Total Dissolved Solids (PPM) 3000 MAXIMUM 3000 MAXIMUM 3000 MAXIMUM
* Free Chlorine MUST NOT EXCEED 5 PPM!
• Occasional chemical shock dosing of the pool or spa water should not damage the
heater providing the water is balanced.
• Automatic chemical dosing devices and salt chlorinators are usually more efficient
in heated water, unless controlled, they can lead to excessive chlorine level which
can damage your heater.
• Further advice should be obtained from your pool or spa builder, accredited pool
shop, or chemical supplier for the correct levels for your water.
2
Rev. 17 reflects the following: The addition of: a note to the VENT PIPING section on the bottom of page 19; a Multiple Pool
Heater Installation drawing to the PLUMBING—WATER CONNECTIONS section on page 24. Changes to: the text in step
3 of the PLUMBING—WATER CONNECTIONS section on page 24; the LOW NOx WIRING DIAGRAM on page 30; the
FLAME ROLL-OUT SAFETY SWITCH section on page 41; the REPLACEMENT PARTS section on pages 48–55; the
PLUMBING—WATER CONNECTIONS section was moved from page 21 to page 24 and the HEAT EXCHANGER PRES-
SURE DROP TABLES section was moved from page 24 to page 21.