CeilAir CW series Manuel de l'opérateur télécharger pdf (Page 15)

(©July, 2008)

CeilAiR OHS Series Installation, Operation & Maintenance Manual

ir Technology Systems, Inc.

2-4

horizontally for ease of making wire connections. Each

transformer has keyhole mounting slots for mounting

with bolts to desired surface (wall, floor or other

structure capable of supporting its weight).

2.4.4.2 Condensate Pump (Field Installed)

The condensate pump should be as near to the air

conditioning system as possible. The inlet holes in the

pump must be below the lowest part of drain from unit.

The pump has two mounting supports so it can be

hung on an adjacent wall. Ensure that the pump is

level for proper operation.

2.4.4.3 Non-Fused Service Switch

The non-fused service switch is used to disconnect

main power and isolate the unit during maintenance and

service. The switch has a lockable handle to lock power

out during maintenance periods. The case has a top

keyhole slotting mount and two holes in each bottom

corner for mounting. The hardware for mounting is field

supplied and varies with size of switch and location.

The non-fused service switch can be mounted near the

unit or in a central location. The non-fused service

switches are rated for indoor or outdoor use. Ensure

that the proper type for your application is used.

NOTE

Refer to local and national electrical codes for

mounting location.

2.4.5 Remote Sensors

The remote temperature sensor or the temperature/

humidity (T/H) sensor must be located so that it will

properly sense the temperature and/or humidity

conditions to be controlled. The sensor should not be

mounted near a doorway or an area where it would be

exposed to direct sunlight. When locating the sensor,

consider the length of wire to be used. As an option, a

75 foot or 150 foot long cable may be provided by

SATS. Refer to the applicable section that follows to

mount the sensor. For unit wiring details, refer to

Section 2.7, Utility Connections and to the electrical

diagrams provided with the unit.

2.4.5.1 Remote Temperature Sensor

NOTE

The remote temperature sensor has a maximum

range of 300 feet.

1. Open the sensor case by depressing the button on

the bottom edge of the case until the latch releases.

2. Remove the cover by pulling it out and up at the

bottom.

3. Remove the circuit board from the base by pulling

back the latch that holds it at the center bottom.

4. Use the base as a template to mark the mounting

holes location on the wall.

5. Using a ¼ inch drill, drill the holes and insert the

provided wall anchors.

6. Run the wires coming out of the wall through the

opening in the base, then secure the base with the

screws provided.

7. Snap the circuit board back into the base. Ensure

that the latch holds the board properly and that the

sensor element is positioned under the holes in

the cover but not touching the cover or base.

8. Make the wiring connections.

9. Replace the cover.

2.4.5.2 Remote Temperature/Humidity Sensor

1. Using a flat head screwdriver, remove the cover

plate from the base of the sensor.

2. Place the base temporarily over the wire hole

opening in the wall. Level the base and mark the

mounting hole locations through the two slots.

3. Drill the mounting holes and insert the provided

wall anchors.

4. Run the wires coming out of the wall through the

opening in the base, then secure the base with the

screws provided.

5. Make the wiring connections.

6. Replace the cover plate on the base.

CAUTION

Take care not damage the exposed tempera-

ture/humidity sensors on the PC board while

screwing in the cover fastening screw. The sen-

sors can be damaged if handled improperly.

2.4.5.3 Remote Water Detector

The remote water detector is normally placed in an

auxiliary drain pan located under the

unit. It may be attached using double

sided tape or with the mounting holes

provided in the flanges (one on each

side). Once it’s in place, loosen the

screws provided on the mounting legs

to adjust the height of the sensing probes.

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CeilAir CW series Manuel de l'opérateur Page 15

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