Lochinvar EnergyRite ER202 Installation & Operation Manual page 39

9
Start-up
(continued)
Energy saving recommendations
1. Keep the pool/spa covered when not in use. This will
cut heating cost, reduce water evaporation, conserve
chemicals and reduce load on the filtering system.
2. Reduce pool thermostat to 78°F (25°C) or lower, reduce
spa temperature to 100°F (38°C).
3. Use an accurate pool/spa thermometer to monitor
water temperature.
4. Record the proper temperature settings for your pool
and spa set points and discourage further adjustments
of the digital control.
5. Use a time clock to start filter pump no earlier than
6 a.m. during pool/spa season. This is the time when
nightly heat loss stabilizes.
6. Turn the pool/spa heater off and drain during long
periods when the pool will not be used (winter,
vacations, etc.,).
7. Follow a regular program of preventative maintenance
for your heater each new swimming season. Check heat
exchanger, controls, burners, and operation of the unit.
8. For pools used only on weekends, the thermostat may
be set lower than 78°F (25°C) during the week. Lower
setting to a range that can be easily achieved in one
day's operation of the pool heater.
Checking gas supply pressure
1. Turn the main power switch to the "OFF" position.
2. Shut off gas supply at the field installed manual gas
cock in the gas piping to the appliance. If fuel supply is
LP gas, shut off gas supply at the tank.
3. On ER152 - ER202 models remove the 1/8" hex plug,
located on the "inlet" side of the gas valve. An inlet
pressure tapping is located on the top side of the valve
body (see FIG. 9-1).
On ER252 - ER402 models remove the 1/8" hex
plug, located in the tee between the low gas pressure
switch and the gas valve (see FIG. 9-2).
A tapping on the field installed main manual gas cock
may also be used. Install a fitting in the inlet pressure
tapping suitable to connect to a manometer or
magnahelic gauge. Range of scale should be 14" w.c. or
greater to check inlet pressure.
Installation & Operation Manual
Figure 9-1_Gas Supply Pressure Measurement -
Models ER152 - ER202
Figure 9-2_Gas Supply Pressure Measurement -
Models ER252 - ER402
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