Installation & Operation Manual
6 Startup
Pre-start checklist
Before attempting to start the pool heater verify that the following items have been checked:
1.Verify proper location and installation of the pool heater.
2.Check gas piping and ensure the gas line is purged of all air.
3.Ensure that the pool is properly filled.
4.DO NOT operate pool heater if improperly filled.
5.Check to ensure that all water connections are tight.
6.Relief valve has been piped to a suitable floor drain.
7.Combustion air openings are not obstructed in any way.
8.Ensure all air is purged from the water piping.
Starting the filter system
Verify proper installation of the pool heater temperature controls and the installation of the 110°F auxiliary limit and pool supply sensor in the mixed discharge water from the filter piping to the pool. Clean the filter. Start the filter pump. Be sure all air is out of all the lines including the pressure connection. Ensure that the pool heater is not “air bound” by manually opening the temperature and pressure relief valve. Leave the valve open until a steady flow of water is observed at the discharge from the valve. Close the valve and complete filling the system.
Note: Backwash the filter when the G.P.M. filtration rates are too low to meet local codes or state code. A high temperature rise across the pool heater is also an indication of low flow in the filter system. Sustained low flow to the pool heater will result in cycling of the heater on the limit controls and possible opening of the relief valve.
Check for gas leaks
3.Disinfection and Oxidation
4.pH Control and Total Alkalinity
5.Algae Control
6.Water Balance
The water chemistry of your pool changes daily due to natural evaporation of the water and the addition of chemicals. Chemicals are used to sanitize and control algae growth in the pool. Their addition must be carefully monitored. The accumulation of minerals or scale in the pool heater due to a chemical imbalance will cause a
Figure 6-1_ pH Scale
If the pH becomes too high, it lowers the ability of chlorine to destroy bacteria and algae, water can become cloudy, filter elements may become blocked, and scale formation will occur in the pool and heat exchanger. If the pH becomes too low the water becomes acidic. You can have eye burn and skin irritation, etching of the plaster, corrosion of metal fixtures and the resulting stains on the plaster, degradation of sand and gravel filters and corrosion of the copper tubes in the heat exchanger.
WARNING
WARNING
Before starting the unit, and during initial operation, smell near the floor and around the unit for gas odorant or any unusual odor. Remove the front access panel and smell the interior of the pool heater enclosure. Do not proceed with startup if there is any indication of a gas leak. Use an approved leak detection solution. Repair any leaks at once.
The venting system must be installed so that it will prevent flue gas spillage and carbon monoxide emissions, which will result in severe personal injury or death.
Damage to the pool heater, including the pumped bypass, due to improper chemical water balance is
Freeze protection
Check/control water chemistry
CAUTION Salt levels above 5000 ppm can cause corrosion damage to heat exchangers.
Factors which affect pool water and, more importantly, the efficiency of your new pool heater are:
1.Proper Filtration
2.Proper Circulation
Although this pool heater is CSA design certified for outdoor installations - such installations are not recommended in areas where the pool heater will be operated in the winter months and the danger of freezing exists. Proper freeze protection must be provided for outdoor installations; pool heaters installed in unheated equipment rooms or where temperatures may drop to the freezing point or lower.
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