Field Installed Accessories - Sears GT Series Installation Instructions Manual

Water Tank Refill
1. Open the cold water supply to the tank.
2. Open a hot water faucet to vent air from the system until
water flows from the faucet, then close.
3. Depress the hot water tank pressure relief valve handle to
ensure there is no air remaining in the tank.
4. Carefully inspect all plumbing for water leaks. Correct as
required.
5. Purge all air from HRP by depressing the Schrader valve on
the HR unit. Allow all air to bleed out until water appears at
the valve.
IMPORTANT: All piping from HRP to domestic water tank
must be copper or any metal of stronger alloy.
6. Before restoring the power or fuel supply to the water
heater, adjust the temperature setting on the tank
thermostat(s) to ensure maximum utilization of heat
available from the refrigeration system and to conserve the
most energy.
On tanks with thermostats and both upper and lower ele-
ments, the lower element should be turned down to 100°F,
while the upper element should be adjusted to 120°F. De-
pending upon the specific needs of the customer, you may
need to adjust the upper element differently.
On tanks with a single thermostat, lower the thermostat
setting to 120°F or the "LOW" position. After thermostat
adjustments are completed, replace access cover and restore
electrical or fuel supply to water heater.
Initial Start-Up
[]NIT DAMAGE AND/OR OPERATION HAZARD
Failure to follow this caution may result in unit damage
and/or improper equipment operation.
Make sure all valves in heat recovery water piping system
are open. NEVER OPERATE HR PUMP DRY.
1. Turn on the heat pump. The HR pump should not run if the
compressor is not running.
2. Turn HR switch to the "ON" position. The pump will
operate if entering water temperature to HR is below 120 °F.
3. The temperature difference between the water entering and
leaving the heat recovery should be 5°F to 15°F.
4. Allow the unit to operate for 20 to 30 minutes to ensure it is
functioning properly. The pump should shut off when the
water temperature entering the heat recovery reaches 120°F.
FIELD INSTALLED ACCESSORIES
Auxiliary Heaters
Internally mounted auxiliary heaters are available in 10 Kw, 15 Kw
and 10 Kw sizes. For installation procedures, refer to the
instructions shipped with the heaters. Table 3 lists compatible
heaters with GT units.
Flow Centers and Associated Loop Accessories
A wide variety of flow centers are available for both closed and
open loop installations, along with hose kits, fittings, solenoid
valves, etc. Refer to the instructions shipped with these
components for further details.
Table 3 - Electric Heater Compatibility
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