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SM Series Heat Pump
HEAT RECOVERY PACKAGE
Water Tank Preparation
1.
Turn off electrical or fuel supply to the water heater.
2.
Attach garden hose to water tank drain connection
and run other end of hose out doors or to an open
drain.
3.
Close cold water inlet valve to water heater tank.
4.
Drain tank by opening drain valve on the bottom of
the tank, then open pressure relief valve or hot
water faucet.
5.
Once drained the tank should be flushed with cold
water until the water leaving the drain hose is clear
and free of sediment.
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 HR through an external purge
valve. Allow all air to bleed out until water appears
at the valve. Locate the external purge value at the
highest point in installation.
NOTICE: All piping from HRP to domestic
water tank must be copper.
Revised 07-17
6.
Close all valves and remove the drain hose.
7.
Install HR water piping.
Concentric water fitting (p/n 8-733-907-779) is
recommended.
HR Water Piping
All hot water piping MUST be a minimum of 3/8" O.D.
copper tube to a maximum distance of 15 feet. For
distances beyond fifteen feet but not exceeding 60 feet
use 1/2" copper tube. Separately insulate all exposed
surface of both connecting water lines with 3/8" wall
closed cell insulation. Install isolation valves on supply
and return to the heat recovery. (Figure #59)
Isolation
valves
NOTE: Diagram for illustration purposes only.
Figure # 59
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
the heat available from the refrigeration system and
conserve the most energy. On tanks with both upper
and lower elements and thermostats, the lower
element should be turned down to 100° F, while the
upper element should be adjusted to 120° F.
Depending 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.
Heat Recovery Package | 27
8733942411 (2017/06)
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