Operating instructions

ManualsBrandsDometic ManualsHeat Pump630025

THERMOSTAT:THERMOSTAT:

THERMOSTAT:

This thermostat controls 12 volt DC heating and air condi-

tioning systems. It can control one stage of heat and two

stages of cooling. Changeover from heating to cooling is

operator controlled — the thermostat can not make this

change. Time delay circuits have been incorporated to

protect the cooling system components.

The time delay is 3 minutes between "OFF" and "ON"

cycles. There is a 30 second delay when the compressors

turn on. This allows time for the generator to stabilize on

initial starting. The balance of the delay (2.5 minutes)

occurs when the compressor cycles off. This is to allow the

compressor pressures to balance before restarting. There

is a 30 second delay and 2 degrees between 1st and 2nd

stage cooling operation.

OPERAOPERA

OPERA

TIONTION

TION

Your air conditioner is operated from the control panel of

the electronic wall thermostat. When the furnace is con-

nected to this thermostat, it will operate from the same

control panel.

Identification and operational descriptions for all control

panel switches and display are listed below: (Refer to

Figure 6A)

A.A.

LIQUID CRYSTAL DISPLAYLIQUID CRYSTAL DISPLAY

LIQUID CRYSTAL DISPLAY: This display will be

illuminated any time the system is in operation.

The display shows the operator both the mode of the

display (indicated by the arrow at the left side of the

display) and the temperature for that mode. There are

three display modes:

ACTUALACTUAL

ACTUAL,

COOLCOOL

COOL and

HEATHEAT

HEAT. The

operator may choose the mode to view by depressing

the "

MODEMODE

MODE" switch. Each time the

MODEMODE

MODE switch is

depressed, the display advances to the next mode. If

the display is left in either

COOLCOOL

COOL or

HEATHEAT

HEAT, the thermo-

stat will automatically return the display to

ACTUALACTUAL

ACTUAL in

approximately three minutes.

A description of the three modes is:

ACTUALACTUAL

ACTUAL: When in this mode, the display is indicating

current room temperature.

COOL SETCOOL SET

COOL SET: When in this mode, the display is indicating the

current cooling setpoint temperature. At this time the

cooling system setpoint temperature may be adjusted

up or down to meet the individual comfort level. See

"Adjusting Setpoint" for further instructions.

HEAT SETHEAT SET

HEAT SET: When in this mode, the display is indicating the

current heating system setpoint temperature. At this

time, the heating system setpoint temperature may be

adjusted up or down to meet the operator's comfort

level. See "Adjusting Setpoint" for further instructions.

All three display modes can be accessed without affecting

the operation of the system. The system operation will

remain normal unless a change is made to the setpoint to

force a change in the system operation.

B.B.

SYSTEM SWITCHSYSTEM SWITCH

SYSTEM SWITCH: The system switch has four posi-

tions to control the operation of the heating and cooling

systems. They are as follows:

COOLCOOL

COOL: When in the "

COOCOO

COOL" position, 1st and 2nd

Stage cooling will cycle from the cooling system setpoint.

Blower operation will be controlled by the position of the

Cooling Fan Switch.

HEATHEAT

HEAT: When in this position, the heating system will

cycle from the heating system setpoint. The heating

blower will operate per the heating system manufac-

turer specifications.

OFFOFF

OFF: When in the "

OFFOFF

OFF" position, no thermostat or

system operation will occur. The liquid crystal display

will indicate room temperature until backup power is

depleted (approximately 2 minutes).

FANFAN

FAN: When in the fan position, the blower will operate

continuously at high speed.

C.C.

COOLING FAN SWITCHCOOLING FAN SWITCH

COOLING FAN SWITCH: The fan switch has four

positions to control the operation of the cooling blower.

The fan switch controls operation of the cooling blower

only after the system switch is placed into the

COOLCOOL

COOL

position.

With the system switch in any other position, the fan

switch will have no affect on the operation of the cooling

blower. Fan switch positions and their resulting func-

tions are as follows:

HIGH AUTOHIGH AUTO

HIGH AUTO: When in the high auto position, the

cooling blower operates at high speed and cycles

"OFF" and "ON" with the 1st Stage compressor. The

2nd Stage cooling will cycle "ON" and "OFF" as needed.

LOW AUTOLOW AUTO

LOW AUTO: When in LOW AUTO position, the cooling

blower operates at low speed and cycles "OFF" and

"ON" with the 1st Stage compressor, the 2nd Stage

cooling will cycle "ON" and "OFF" as needed.

HIGH and LOW ONHIGH and LOW ON

HIGH and LOW ON: When in the HIGH or LOW ON

positions, the cooling blower operates continuously.

The 1st and 2nd Stage compressors cycle OFF and ON

as needed.

D.D.

MOMENTARY SWITCHESMOMENTARY SWITCHES

MOMENTARY SWITCHES: Momentary Switches are

activated by depressing the center of the switch. There

are three momentary switches:

MODEMODE

MODE: Depressing this switch advances the display

mode from ACTUAL to COOL, HEAT and back to

ACTUAL.

When using this switch, you are indicating your desire

to check or adjust the setpoint temperatures for cooling

or heating.