Operating instructions

ManualsBrandsDometic ManualsHeat Pump630025

4D. DC VOLTAGE REQUIREMENTS

DC VOLTSDC VOLTS

DC VOLTS

On certain models of electronic control air conditioners, a

DC volt supply is wired to the control board. The operating

range is 10 to 16 volts. If voltage is below 10 volts, you could

experience improper operation of the components within

the main board.

5D. COMPONENTS

MAKE SURE THAT THE POWER SUPPLY TO THEMAKE SURE THAT THE POWER SUPPLY TO THE

MAKE SURE THAT THE POWER SUPPLY TO THE

UNIT IS DISCONNECTED BEFORE PERFORMING ANYUNIT IS DISCONNECTED BEFORE PERFORMING ANY

UNIT IS DISCONNECTED BEFORE PERFORMING ANY

WORK ON THE UNIT TO AVOID THE POSSIBILITY OFWORK ON THE UNIT TO AVOID THE POSSIBILITY OF

WORK ON THE UNIT TO AVOID THE POSSIBILITY OF

SHOCK INJURY OR DAMAGE TO THE EQUIPMENT.SHOCK INJURY OR DAMAGE TO THE EQUIPMENT.

SHOCK INJURY OR DAMAGE TO THE EQUIPMENT.

A.A.

SELECTOR SWITCHSELECTOR SWITCH

SELECTOR SWITCH

The selector switch in a mechanical air conditioner has

several positions. The various switch positions can be

tested for continuity with a volt/ohm meter set on the

highest ohm scale.

First, turn the 20 amp air conditioner breaker to OFF and

remove wires from the switch.

With the switch in the OFF position, you should not have

continuity between terminal L1 and any other terminals.

In the HIGH FAN position, you should have continuity

between L1 and terminal 1.

In the MEDIUM FAN position, you should have continuity

between L1 and terminal 2.

In the LOW FAN position, you should have continuity

between L1 and terminal 4.

In the HIGH COOLING mode, you should have continuity

between L1 and C, and L1 and 1.

In the MEDIUM COOLING mode, you should have continu-

ity between L1 and C, and L1 and 2.

In the LOW COOLING mode, you should have continuity

between L1 and C, and L1 and 4.

In the HEATING mode, you should have continuity be-

tween L1 and H, and L1 and 4.

Be sure to check the switch in all positions and be sure

you have continuity only on the terminals for the selected

mode. Lack of continuity or continuity on incorrect termi-

nals designates a defective switch, and it must be re-

placed.

POSITION TERMINALS

OFF

HI FAN L1 and 1

MED FAN L1 and 2

LOW FAN L1 and 4

HI COOL L1 and C; L1 and 1

MED COOL L1 and C; L1 and 2

LOW COOL L1 and C; L1 and 4

HEAT L1 and H; L1 and 4

B.B.

THERMOSTATTHERMOSTAT

THERMOSTAT

1)1)

MECHANICAL CONTROLMECHANICAL CONTROL

MECHANICAL CONTROL

The thermostat controls the ON/OFF cycling of the

compressor. It has two terminals. The air temperature

around the sensor tube should be between approxi-

mately 65 degrees and 90 degrees Fahrenheit. To

check the thermostat for operation, turn the air condi-

tioner circuit breaker off, and disconnect the wires to the

thermostat. Turn the control knob to MAXIMUM. You

should have continuity between the two terminals. Turn

the thermostat to MINIMUM, and you should not have

continuity between the two terminals. If you have incor-

rect readings, replace the thermostat.

2)2)

BIMETAL RELAY CONTROLBIMETAL RELAY CONTROL

BIMETAL RELAY CONTROL

This thermostat has a bimetal coil that makes or breaks

a set of points to regulate the temperature.

The thermostat is mounted on a wall of the RV and is

connected to the relay board (mounted in the return air

grille assembly) with red, orange, yellow and blue wires.

The thermostat is a "heat/cool thermostat". These instruc-

tions cover only the cooling connections required. If

connection of furnace is required, follow the instructions

provided with the furnace. Normally the furnace will

connect to the

"RH""RH"

"RH" and

"W""W"

"W" terminals on the thermostat.

1. Remove the cover of the provided thermostat.

2. Connect the

"RED""RED"

"RED" wire from the air conditioner to

the

"RC""RC"

"RC" terminal on the thermostat.

3. Connect the

"YELLOW""YELLOW"

"YELLOW" wire from the air condi-

tioner to the "

Y" terminal on the thermostat.

4. Connect the

"BLUE""BLUE"

"BLUE" wire from the air conditioner

to the

"H""H"

"H" terminal on the thermostat.