Pentair HP 400, HP 600, HP 800, HP 1000, HP 230 Thermostat Control & Settings Evaporator AIR Coil

THERMOSTAT CONTROL & SETTINGS

EVAPORATOR AIR COIL

Turning up the thermostat will start the

The fan circulates the warmer out-

unit running. When the pool water has

side air through the evaporator air

coil to collect any available heat. The

been heated to the thermostat setting, the

cooler Freon™ absorbs this heat

unit will shut off. When the pool water

causing it to evaporate into a gas.

temperature loses one to two degrees,

Therefore the compressor can com-

the thermostat will activate the unit.

press the gas to maximize the gain

There are no temperature graduate num-

heat from the air. The fan discharges

bers printed on the thermostat face.

To

cooler air when the compressor is running. Process is

obtain an exact temperature, turn the t-stat

reversed in Heat & Cool models while in cooling mode.

all the way up and then place a pool type

COMPRESSOR

thermometer in the pool water itself. Once

Once the fan is running, the compressor will start 5 to

the water has reached your target tempera-

7 minutes later, it's controlled by a time delay device.

ture on the thermometer, turn the thermo-

The compressor pumps and compresses re-

stat knob backwards until the heater just

frigerant gas. When refrigerant gas is com-

shuts off. Make a mental note of knob in-

pressed it intensifies the heat before it is

dicator. Therefore your thermostat will be

release to the pool water. This compressed

set at the thermometer reading.

hot gas is pumped through the heat ex-

THERMOSTAT CONTROL & SETTINGS FOR

changer where it delivers heat to the pool

water passing through the same heat ex-

HEAT & COOL MODELS

changer.

For heating modes on these models,

make sure toggle is selected to heat and

HEAT EXCHANGER

follow the previous instructions above.

The compressed hot refrigerant releases it's heat to the

For cooling mode make sure toggle is

pool water inside the heat exchanger. The exchanger is

selected to cool. Turning down the ther-

a tube within a tube construction, water passing through

mostat counter clockwise will start the

the inner tube, hot gas passing

Heat Cool

unit running. When the pool water has

through the outer tube. The refriger-

been cooled to the thermostat setting,

ant is transformed into a liquid state

the unit will shut off. When the pool

as it exits the heat exchanger. There-

water temperature rises one to two degrees, the thermo-

fore it is also referred to

stat will activate the unit. There are no temperature gradu-

as a condenser coil. (Heat & Cool Models,

ate numbers printed on the thermostat face. To obtain an

process is reverse). The exchanger is en-

exact temperature, turn the t-stat all the way down

and

cased inside a block of closed cell foam to

then place a pool type thermometer in the pool water it-

prevent heat loss and corrosion.

self. Once the water has reached your target temperature

See the cross section.

on the thermometer, turn the thermostat knob forwards SYSTEM OVERVIEW Warm Water Cool Water

until the heater just shuts off. Therefore your thermostat

The heat pump system

In

Out

will be set at the thermometer reading.

uses 410-A refrigerant to

FAN-AIR CIRCULATION

transfer the heat from the

outside air to the pool

Once the t-stat is activated the

water.

fan will begin to turn. To ab-

Cool Air Out

Plumbing Bypass

sorb heat energy, the fan circu-

Manifold

lates warmer air through the

evaporator coil at about 4000

Hot Gas

cubic feet per minute. The fan

Warm

runs independently from the

Air

compressor. The compressor

In

will start within 5 to 7 minutes

Freon™

Heat

Compressor

after the fan.

9

Air Coil

Lines