KwiKool CeilingMaster KCA Series Operation Manual Download Page 8

Page 6

Electrical Requirements:

F.

It is important to make sure you use the recommended breaker size for the unit 
being installed. The rating plate will give you a Maximum breaker size (MOP) and a 
recommended breaker size. 

Make sure the wire and circuit are appropriately 

sized for the breaker size and unit being installed. Always use wire that is rated 

for the voltage and amperage of the unit

.

To install the power follow the following guidelines:

1.

2.

Open the electrical panel by removing the screws to the cover.

Bring your circuit with flex conduit to the unit and install the conduit to the 
cabinet with a conduit 1/2” or 3/4” BX connector or cable strain relief (Romex) 
connector, depending on which CeilingMaster model you purchased. Leave 
approximately 12” of wire past the connector and run the wire into the electri-
cal box. Strip the ends of the wires and install the appropriate connectors to 
the 3 wires for single phase units and 4 wires on the 3-phase models.

Attach to the 2 or 3 hot wires to the line side of the main contactor (labeled L1, 
L2, etc) and attach the green ground wire to the ground screw inside the 
electrical box.

On single phase units connect the neutral to the contact that has a white wire 
on the load side of the contactor.

For 3-phase units this is not important, but it is important to make sure that the 
fans are rotating in the correct direction. If during testing the fans rotate in the 
wrong direction switch L1 and L2 and retry.

Connect the ground wire (green color) to the ground screw located in the 
bottom of the electrical box below the contactor.

a.

b.

c.

d.

e.

f.

Unit must have physical clearance on all sides. The top shall have a minimum of 3” 
clearance and the sides need at least 18” of air for condenser intakes. See figure 3

E.

Summary of Contents for CeilingMaster KCA Series

Page 1: ...KCA KCW Operation Manual CEILING MASTER...

Page 2: ......

Page 3: ...roper usage and all safeguards This manual should be retained for future reference Section I Unit Components Page 3 Section II KCA KCW Standard Features Page 3 Section III Introduction Page 4 Section...

Page 4: ......

Page 5: ...PO emergency power off N O connection Automatic shut off with alarm signal output and audible alarm for C D E Condensate Pump High Pressure Switch Activation Low Pressure Switch Activation 1 2 3 Legen...

Page 6: ...for use or misuse of unit improper installation or failure to follow local building codes V Installation Things you will need for installation B Before you begin installation it is important to verify...

Page 7: ...maximum flexibility is installation methods Vibration isolation is required but can be installed on the unit or on the attachment to the building structure One common installation method and one that...

Page 8: ...ctor and run the wire into the electri cal box Strip the ends of the wires and install the appropriate connectors to the 3 wires for single phase units and 4 wires on the 3 phase models Attach to the...

Page 9: ...water level at the drain No dripping from the drain hose at the clamping area G Wall Thermostat Connection Preparation for thermostat connection H Use with a single stage wall thermostat Type standar...

Page 10: ...re Alarm Control Panel or EPO Emergency Power Off to KCA KCW First remove the jumper from the S1 and S2 terminals of the external terminal block Connect the fire alarm signal wires or EPO wires to you...

Page 11: ...he 3rd party thermostat is connected properly to unit and secured to the wall D Test Operation E Check operation with wall thermostat Set wall thermostat to FAN ON or FAN ONLY mode Fan should engage w...

Page 12: ...al factory jumper and retest Condenser Blocked Make sure that the condenser inlets and outlets are not blocked Verify that the condenser intake air is not overheated due to lack of ventilation or cond...

Page 13: ...Switch Actuated Potentially low on refrigerant Call a qualified technician since this is not user serviceable Condensate Pump Overflow Check to make sure condensate line is not kinked or obstructed I...

Page 14: ...Revision 071916...

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