Chapter 2. INSTALLATION AND OPERATING INSTRUCTIONS

CHAPTER 2

INSTALLATION AND OPERATING INSTRUCTIONS

Section I. SERVICE UPON RECEIPT OF EQUIPMENT

(5) Store the grilles so as to avoid possible

2-1. Inspecting and Servicing Equipment

damage.

a. Perform daily preventive maintenance serv-

c. Blockoff Plate. The blockoff plate is provided

ices (para 3-4).

for installation when the controls are removed for

b. Perform quarterly preventive maintenance

remote control operation. The blockoff plate pro-

service (para 3-4).

vided must be used so that no air will enter the

lower compartment. Refer to figure 21, and in-

c. Inspect entire air conditioner for signs of

stall the blockoff plate.

damage, paying particular attention to evaporator

and condenser coils.

2-3. Installation or Setting-Up Instructions

d. The air conditioner contains a full operating

a. General. Set air conditioner in a level position

charge of refrigerant and compressor oil. No fur-

to allow proper condensate draining (operation

ther service is required.

will be satisfactory with unit setting at a slight

angle, and using one of the alternate drain connec-

2-2. Installation of Separately Packed

tions).

Components

b. Locating the Unit. The front access panel and

a. General. The air conditioner is basically a

discharge and intake grilles are removable for

self-contained unit, however, in certain `installa-

normal service and maintenance, and must always

tions it may become desirable to utilize the sound

be unobstructed to allow sufficient air for con-

attenuator and/or the remote control blockoff

densing purposes. The discharge and intake open-

plate with an electrical receptacle.

ings at front of unit should be relatively free from

b. Sound Attenuator. The sound attenuator will

obstruction to permit maximum unit capacity.

provide a sound dampening effect and is mounted

Note. Remove discharge and intake grilles and filter, if

on the front of the air conditioner (fig. 11 (2)).

unit is to be used with ducts carrying air to and from the

The sound attenuator replaces the air intake and

conditioned space. Install grilles and filter in the duct.

discharge grilles and air is taken in and dis-

Note. Remove intake cover (fig. 1-2) if a Chemical and

charged through the attenuator bases. Air is

Biological filter unit is to be attached to the unit.

taken in through the bottom and discharged

c. Installing Unit. Bolt unit to floor or other flat

through the top of the attenuator. Refer to figure

surf ace. Refer to base plan (fig. 1-3) for dimen-

11 (2), and install the sound attenuator as fol-

sions. Connect drain hose to drain nipple at

lows :

bottom of unit to lead condensate away from unit.

(1) Remove the intake and exhaust grilles

Alternate 1/2 NPT condensate drain connections

(para. 3-17).

are provided at both sides and front of unit. If one

(2) Inspect the attenuator for breaks, cracks,

of these are used, insert a 1/2-inch square head

or other damage.

plug in the rear connection. Some units are pro-

(3) Place the sound attenuator in position on

vided with 4 drain plugs installed. Remove the de-

the front of the unit by aligning the grille

sired drain plug prior to installing the drain hose.

mounting holes with the attenuator mounting

d. Power Source.

holes.

(1) Model CE20VAL4. Operates on 208 volt,

Note. Make sure that the notched edge of the

400 hertz, 3 phase power.

attenuator frame matches the damper door control chain

location.

(2) Model CE20VAL6. Operates on 208 volt,

(4) Install the mounting bolts.

50/60 hertz, 3 phase power.

AGO 20053A