Aquacal H/AT100R - Manual (Page 25)

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While the plumbing connections are in the winterized condition (not fully tightened), it is imperative pool/
spa water not be circulated through the heat pump. Loss of water through loose plumbing connections
may result in damage to circulating pump, pool/spa structure, and/or other equipment.
Failure to heed the following can result in damage to equipment
and/or property.
CAUTION !
Winterizing (Hard Freeze Conditions)
SEASONAL USE & SHUT DOWN (CONTINUED):
Failure to properly winterize heat pump may result in serious equipment damage. Freeze damage is not
covered under the heat pump warranty.
Failure to heed the following can result in damage to equipment
and/or property. CAUTION !
Winterizing a Heat Pump Equipped with an Internal Drain
(Per Figures 1 & 2, on page following)
1. Disconnect all electrical power to the heater; turn OFF circulating pump.
2. At the two (2) connection unions, disconnect the plumbing to the heater (removal is counterclockwise).
3. Remove the front plastic panel by removing the screws shown in Figure-1.
4. Locate the drain plug at base of the titanium condenser and remove (removal is counterclockwise). See
Figure-2.
5. Permit all of the water to drain out of the condenser and then, threading clockwise, replace the plug
finger-tight.
6. Reinstall the heater front cover and secure with attaching screws previously removed.
7. To prevent insects and vermin from entering the plumbing during the winterized period, partially
reconnect the two (2) plumbing connection unions. Couple each union one or two threads; this will
permit condensation to drain, but will prevent most insects and animals from entering the plumbing
circuit.
8. Next Season: To ready the heat pump for use, simply retighten plumbing connection unions. Hand-
tight is generally sufficient.
To avoid injury from rotating equipment (fan blade), disconnect electrical power from heat pump before
proceeding with INTERNAL DRAIN winterizing process.
Failure to heed the following mat result in permanent injury or
death.
WARNING !