Davey POOL AND SPA GAS HEATERS - Manual (Page 3)

Part No: 96131430D 3 Rev: 2
SAFETY
WARNING!
For your safety do not operate this appliance before reading this instruction booklet! Improper installation, adjustment, alteration,
service or maintenance can cause injury or property damage.
DO NOT place articles on or against this appliance.
DO NOT use or store flammable materials near this appliance.
DO NOT spray aerosols in the vicinity of this appliance while it is in operation.
DO NOT operate this appliance with any panels, covers or guards removed.
DO NOT enclose this appliance unless it has been constructed for such an installation.
DO NOT operate this appliance whilst cleaning your pool.
DO NOT use this appliance to heat water for drinking.
DO NOT enter water heated by this appliance without testing temperature first. Prolonged exposure to elevated water
temperatures may be hazardous to your health.
WHAT TO DO IF YOU SMELL GAS!
¾ DO NOT try to light this appliance.
¾ DO NOT touch any electrical switch.
¾ TURN OFF the gas supply at the meter immediately, contact a licensed gas fitter or Rheem Service. N.B: Some gases
are heavier than air and it may be necessary to check for gas leaks at floor level.
Ceramic Firetile refractory is used in this appliance. For a current MSDS go to
www.thermalceramics.com and enter “MSDS 354” in
the search. Ceramic Firetile refractory may produce smoke when the appliance is first started. Ensure area is well ventilated when
lighting appliance. Avoid breathing fumes.
For your own safety only have this appliance installed by a licensed gas fitter who must issue you with a compliance certificate
when complete. Persons taking medications which induce drowsiness should not use spas. Persons with a medical history of heart
disease circulatory or blood pressure problems, or diabetes should obtain their Doctor’s advice prior to using a spa.
WATER TREATMENT
IMPORTANT!
CORROSIVE WATER VOIDS YOUR WARRANTY.
For your health and the protection of your heater it is essential that your water quality is always chemically balanced. Only incorrect
water balance will cause your heat exchanger to corrode. After corrosion occurs, subsequent water chemical tests may not reveal
the water quality at the time that the damage occurred. Do not replace any corroded parts before bringing your water quality back
into balance. The following table provides a guide to good water balance:
Fibreglass Pools
(less than 31C)
Fibreglass Spas
(more than 31C)
Other Pools &
Spas
pH 7.3 - 7.4 7.3 - 7.4 7.6 - 7.8
Total Alkalinity (PPM) 120 - 150 120 - 150 80 - 120
Calcium Hardness (PPM) 200 - 300 200 - 300 200 - 400
Salt (PPM) 6,000 MAX 6,000 MAX 6,000 MAX
Free Chlorine (PPM)* 2 - 3 2 - 3 2 - 3
Langelier Saturation Index -0.3 to +0.3 -0.3 to +0.3 -0.3 to +0.3
* FREE CHLORINE MUST NOT EXCEED 4 PPM
* FREE BROMINE MUST NOT EXCEED 5 PPM
There are several factors that need to be considered in order to avoid damage to your heater.
• Automatic chemical dosing devices and chlorinators are usually more efficient in heated water and/or covered pools/spas.
Unless controlled, they may lead to excessive chlorine levels which can damage your heater.
• If the sanitising level in your pool/spa is too high, your test kit or that of your pool shop may not show the correct
chlorine/bromine concentration.
• If your salt chlorinator operates for extended periods whilst the pool is being heated and the weather is overcast or your
pool is enclosed / covered, the chlorine may exceed the recommended levels.
• The balance of your pool water depends on a combination of pH, total alkalinity, calcium hardness and temperature.
Combined, these factors enable the Langelier Saturation Index to be calculated. It is essential these factors are
maintained at the recommended levels so that the water is balanced and the sanitation of your pool will be optimal.
• When adding acid to lower your pH, it must always be added in small quantities and spread uniformly over the entire pool
surface. Do not add acid one litre at a time. Instead, add a cupful each day. Do not add acid into the skimmer box. This
may potentially lead to corrosion of your heat exchanger.
• Note: You should monitor your chlorine and pH levels at least once a week or every day if your pool is in high use. Total
Alkalinity and Calcium hardness levels can be monitored less frequently. Do not operate heater if water balance is outside
the above parameters.