Aquacal LTM0266 - Manual (Page 15)

Page 9
Cupronickel Exchanger
a) Re-install front access panel.
b) Place a garden hose into the pool side inlet of the heat
pump; wrap a clean rag around the hose to form a
temporary seal.
c) Turn on the garden hose water supply.
d) Allow water to run through the heat exchanger for 2-3
minutes; fresh water should be seen exiting the pool’s out-
port.
e) Place a garden hose into the source-side inlet of the heat
pump; wrap a clean rag around the hose to form a
temporary seal.
f) Turn on the garden hose water supply.
Cupronickel Exchanger
(no drain plug)
Figure 5
g) Allow water to run through the heat exchanger for 2-3 minutes; fresh water should be seen
exiting the out-port connection unions.
h) After flushing is complete, shut off and remove the water supply.
i) Place an air hose into the pool inlet of the heat pump; wrap a clean rag around the hose to
form a temporary seal.
j) Push all water from the water circuit using compressed air at approximately 50 psig. The
residual water should be forced out of the pool out connection.
k) Allow compressed air to blow into the heat pump inlet connection unions for at least 15-20
seconds after water stops coming out of the pool outlet.
l) Repeat process on source side.
m) Partially reconnect plumbing connection unions.
3.4 Planned Maintenance
An annual inspection and maintenance program is strongly recommended starting one (1) year after
installation of heat pump. See Figure 6 for recommended inspection checklist. AquaCal AutoPilot can
perform this service in limited areas. Contact Customer Support for more information.
WARNING - Failure to heed the following may result in injury or death.
Annual inspection and service must be performed by a qualified pool and heat pump
specialist in order to prevent physical injury or damage to equipment.
Planned Maintenance Checklist
 Check Water Flow  Check Pool & Spa Water Chemistry
 Clean Evaporator Coil  Check and Clean Condensate Drains
 Check Relay Contacts  Check Compressor Amperage Draw
 Check Capacitor Values  Check Water Pump Amperage Draw
 Check Refrigerant Levels  Acid Wash Source Coil (As Applicable)
 Clean Heat Pump Cabinet  Check Air Temperature Change Through Evaporator
 Check Flow/Pressure Switch  Check Operating Controls and Temperature Sensors
 Check Electrical Connections  Check Water Temperature Change Through Condenser
 Check Proper Voltage To Unit
Figure 6