Page 12
Ultra Classic (VT) Series
Water Tank Preparation
1. Turn off power or fuel supply to the hot water tank.
2. Connect a hose to the drain valve on the water tank.
3. Shut off the cold water supply to the water tank.
4. Open the drain valve and open the pressure relief
valve or a hot water faucet to drain tank.
5. In an existing tank, once drained the tank should be
flushed with cold water until the water leaving the
drain hose is clear and free of sediment.
6. Close all valves and remove the drain hose.
7. Install HWG water piping.
HWG Water Piping
1. Using at least 5/8" O.D. copper, route and install the
water piping, valves and air vent as shown in Figures
14, 15, or 16. When used, the air vent MUST be at
the high point of the HWG water piping.
2. Insulate all HWG water piping with no less than 3/8"
wall closed cell installation.
3. Open both shut off valves and make sure the tank
drain valve is closed.
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. Inspect all work for leaks.
5. Before restoring the power or fuel supply to the water
heater, adjust the temperature setting on the tank
theremostat(s) to ensure maximum utilization of the
heat available from the refrigeration system and con-
serve the most energy. On tanks with both upper and
lower elements and thermostats, the lower element
should be turned down to 100°F or lowest setting,
while the upper element should be adjusted to 120°F.
Depending upon the specific needs of the customer,
you may want to adjust the upper element differently.
On tanks with a single thermostat, lower the thermo-
stat setting to 120°F or the “LOW” position.
6. Replace access cover(s) and restore power or fuel supply.
Initial Start-Up
1. Make sure all valves in the HWG water circuit are
full open.
2. Turn on the heat pump and allow it to run for 10-15 minutes.
3. Turn the heat pump and heat pump power supply
“OFF” and CONNECT POWER TO THE HWG
PUMP as shown in Figure 17. On units with the inter-
nally mounted pump, connect the pump power lead
as instructed on the lead tag.
4. The HWG pump should not run if the compressor is
not running.
5. The temperature difference between the water enter-
ing and leaving the HWG coil should be approxi-
mately 10°F.
6. Allow the unit to operate for 20 to 30 minutes to
ensure it is functioning properly.
Shut Off Valves with Waste
Vent at high point
Insulated water lines - 5/8” OD
50 ft maximum
Upper element to 130°F
(or owner preference)
Cold Inlet
Hot Outlet to
house
Powered
Water Heater
Cold Inlet from
Domestic supply
Hot Outlet
Unpowered
Water Heater
Field Supplied 3/4” brass nipple and “T”
Lower element to 120°F
Figure 15: UltraClassic HWG Double Tank Installation
Figure 16: Alternate UltraClassic HWG Piping
HOT WATER GENERATOR
Содержание Ultra Classic VT 036
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Страница 18: ...Page 18 Ultra Classic VT Series Electrical Schematic...
Страница 29: ...Ultra Classic VT Series Page 29 Notes...
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