CeilAir CW series Manual do Operador descarregar pdf (Página 25)

(©July, 2008)

CeilAiR OHS Series Installation, Operation & Maintenance Manual

ir Technology Systems, Inc.

2-14

A-Tech-1.2 Dip Switch Settings

OFF ON OFF ON

1 4 Events/day 2 Events/day

Four events or two events for all seven days of the week. Four events are: Morning, Day, Evening, Night; two

events are: Day and Night.

2 Smart Fan Disabled Smart Fan Enabled

When enabled and continuous fan has been selected, the fan terminal (G) will de-energize during the Night event

and only cycle on with the equipment.

3 4 min. on/off 2 min. on/off

Minimum time Y and W terminal will be energized, and minimum time must elapse between call. Minimum OFF

times can be overridden by raising and lowering the setpoint. Minimum ON times can only be overridden by

changing the mode.

4 Keypad unlocked Keypad locked

In locked position only the arrow keys and outdoor temperature button will respond. When any other key is pushed

a lock appears on the display. When locked, the setpoint can only be changed by ±3° (F or C) for one hour; when

done, a hour glass will appear on the display.

5 Fan w/HT cell Fan w/Plenum Switch

When off, the G terminal (fan) energizes with the W terminal (heat) immediately with a call for heat. When on, the

furnace controls the fan.

6 Single Stage Multi-Stage

In Single Stage position, terminals Y2 and W2 are locked out

7 No LCD w/LED 1 Filter LCD w/LED 1

In Filter position, when terminal LED 1 is energized a "replace filter" picture appears on the LCD in addition to LED

1 illuminating.

8 No LCD w/LED 2 Wrench LCD w/LED 2

In wrench position, when terminal LED 2 is energized a picture of a wrench appears on the LCD in addition to LED

2 illuminating.

2.7.2.3 Humidistat/Dehumidistat (Optional)

The humidistat/dehumidistat are mounted in the same manner but are wired differently. The humidistat/

dehumidistat both require two conductors for connection to the air conditioning system. The controls provide pigtail

leads for splice type wire connections with twist on connectors (wire caps). Refer to the supplied electrical sche-

matic for proper wire terminations.

2.7.2.2 A-Tech-1.2 Programmable Thermostat

(Dual Stage Unit; See Figure 8)

Set the dip switches located on the circuit board according to the application needs. Refer to the following chart

provided for factory settings. The thermostat requires seven conductors wired to the control terminal board located

within the unit electrical box. The thermostat provides a terminal strip with box type lugs for wire connections.

Refer to the supplied electrical schematic for proper wire terminations.

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