Installation manual

9
ENVISION POOL HEATER INSTALLATION MANUAL
Startup Procedures
Before proceeding with this section make certain all
plumbing connections are airtight and leak-free.
Flow rates should not exceed 70 gpm maximum. Use of
an external bypass is necessary at 70 gpm and above.
Minimum flow rate is 20 gpm.
Turn filter pump time clock to the ON position and set •
filter pump hours. For initial heating, the pool heater
and filter pump may need to run continuously until your
desired temperature is reached. After initial heating is
achieved, the heater will run only to maintain desired
temperature.
Turn power supply to heater ON.•
The amber Standby LED will be activated.•
Select POOL or SPA and set your desired water •
temperature by scrolling either up or down.
If your programmed water temperature is above the •
actual water temperature, the red HEAT LED will light up
indicating HEAT mode. The can will start, and then the
compressor will start.
NOTE: Each time the compressor turns off, it is protected
by a 3 – 5 minute anti-short cycling delay.
Initial Heating
Initial heating may require you to run your heater and
filter pump continuously for at least 24 hours, or more,
depending on the following factors:
Temperature difference between actual water •
temperature and desired water temperature
Size of pool•
Ambient air temperature, the cooler the air temperature, •
the longer the heating time
Heat loss (evaporative, convective, radiative, and •
conductive)
A pool cover/solar blanket may reduce initial heating •
time by up to 50%
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 – 40°F. During the defrost cycle, the Defrost LED will be
illuminated to indicate that the unit is defrosting. During
this time the fan is funning and the compressor is inactive.
Internal Protection Analyzers
The heater is equipped with internal devices to monitor
and protect the integrity of the unit. Should an abnormal
condition occur, these devices will interrupt the operation
of the unit and may display the appropriate code on the
control panel.
Reducing Heat Loss - Pool Cover/Solar Blanket
We highly recommend the use of a pool cover/solar
blanket. Covering your pool is the single most cost effective
means of reducing heat costs from 50 – 70%. Heating
a pool without a cover is like heating a house without a
roof. They also reduce the amount of maintenance costs.
By reducing evaporation, covers reduce the quantity of
chemicals needed. Because evaporation accounts for about
70% of pool heat loss, the beneficial effect of using a pool
cover/solar blanket can be dramatic.
Wind Speed Reduction
Reducing wind velocity at the water surface reduces
convective and evaporative losses. Fences, trees, hills,
or tall hedges close to the pool perimeter are effective
windbreaks. Locate these obstructions to take maximum
advantage of their effectiveness as windbreaks, without
shading the pool surface from the sun.