Refco Combi Installation Manual

Universal Condensate Pump

Combi

x 1

x 1 (1m)

PH#2

x 1 (1,5 m)

x 1 (1,5 m)

x 1

x 1 (2 m)

x 1

x 1 (2m)

x 3

x 5

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1

ON

ON

ON

ON

1 2

ON

1 2

Low

up to 18K Btu/h
(5.3kW)

2

3

1 2

Medium Low

up to 42K Btu/h
(12kW)

1 2

Medium High

up to 72K Btu/h
(21.1kW)

1 2

Full Power

up to 120K Btu/h
(35kW)

When Indoor Evaporator Unit is powered from the Outdoor Condenser Unit. Below examples are for reference only.

Evaporator Unit (Indoor)

Condenser Unit (Outdoor)

**Orange:

To use fail-safe
operation.

1. Remove the violet
wire from indoor live.

2. Connect the orange
wire to indoor live.

3. Change alarm relay
to fail-safe operation.

NL 3

**Orange

Violet

NC NO

COM

NO

COM

NC

Condensate Pump

Grey

Fuse 10A

Alarm
Relay

(typical) Data

100-240vac~

Brown

Blue

Alarm Relay Operation Table

NL

Replaceable

Power Up LED Sequence

Pump Status Condensate Level

Unpowered N/A

Powered Below Alarm Level

Earth

Neutral

3

N

L

N

L

When Multi-Split System is installed

Default

Operation

Fail-Safe

Operation

Evaporator Units (Indoor)

N L3

Powered Alarm-Activated

To change Alarm Relay Operation:

1. Unplug pump

2. Move DIP switch positions to

3. Plug pump in

4. Wait for one green LED blink

5. Move DIP switch positions to

6. Wait for one red LED blink

7. Reset DIP switch positions to

8. Wait for one green LED blink

9. Unplug pump

10. Set the DIP switches back to the desired capacity
configuration. (Low, Medium-Low, Medium-High, High)

11. Plug Pump in and check that power up LED sequence
matches the desired alarm relay operation

12. Done.

To reset default alarm relay operation repeat
steps 1 thru 11.

**Orange:

To use fail-safe operation.

1. Remove the violet wire from indoor live.

2. Connect the orange wire to indoor live.

3. Change alarm relay to fail-safe operation.

VRF Condenser Unit
(Outdoor)

N

L

3

N

L

(typical) Data

Earth

Neutral

100-240vac~

Condensate Pump

Violet

NC

Blue

Brown

Safety Circuit

**Orange

NO

Grey

COM

Replaceable

Fuse 10A

NO

Alarm
Relay

COM

NC

N

L

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4a 4b

Horizontal installation Vertical installation

2

1

1

5a

Horizontal installation

1

2

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