8
Defrost Cycle
The heat pump pool heater has automatic defrost. When the outdoor temperature drops below 40
°
F, frost may start to form on the evaporator coil. Frost buildup will be heaviest on humid days
when the temperature is between 35 and 40
°
F. During the defrost cycle, the display will show
“DEF”
indicating the unit is defrosting. During this time the compressor is inactive.
Internal Protection Analyzers
The heater is equipped with internal devices to monitor and protect the integrity of the unit. If an
abnormal condition occurs, the device will interrupt the operation of the unit and may display the
appropriate code on the control panel.
•
LOW WATER FLOW: Indicated by
“HP”
or
“HP3”
on the control panel. The heater is
designed to run efficiently above twenty (20) GPM. If there is insufficient water flow,
the unit will shut down, protecting the compressor. The usual causes for these conditions
are a dirty pool water filter, a restriction in the return line (i.e. skimmer), or improper
valve positioning.
•
NO WATER FLOW: Indicated by
“FLO”
on the control panel. When the filter pump is
off, or if the water flow to the heater is interrupted during the heating mode, the internal
water pressure switch will shut down the unit. When normal water flow resumes, the
heater will automatically restart itself.
•
Other analyzer codes include:
“LP”, “tSO”, “tSS”
and
“ESO”
and “
ESS
”.
The TROUBLESHOOTING CHECKLIST on page 9 goes into further detail on these analyzer
codes.
MAINTENANCE
WARNING: DISCONNECT ELECTRICAL POWER TO UNIT BEFORE STARTING ANY
MAINTENANCE TO PREVENT SERIOUS INJURY FROM SHOCK.
Protecting your Heater
•
Keep your pool filter system clean and free of restrictions to ensure proper water flow.
•
Check water chemistry regularly. Misuse of chemicals will cause permanent damage to
your heater and other pool equipment. Manufacturers can void warranties for damage as
a result of poor water quality.
•
Free airflow is essential. Keep the evaporator coil clean and free of weeds, leaves, glass
clippings, dirt and other debris that will decrease the airflow. Keep fences and shrubs
away from air inlets (sides and back of heater).
•
Frequent rinsing of the evaporator with fresh water will remove build up from its surface.
Always spray the coil gently with a regular garden hose being careful not to bend
aluminum fins.
•
Regular cleaning of the cabinet will improve its appearance and extend the life of the
finish.
Summary of Contents for ACT-1100T5S ACT-1250T6S
Page 3: ...3 WATER FLOW CONNECTIONS...
