Figure 2-1 (1). Control box and controls, block-off plate. thermostat, thermostat sensing bulb and control box back panel removal and installation

TM 5-4120-274-15

condensate away from unit. The units are pro-

densing purpose. The discharge and intake open-

vided with four drain plugs installed. Remove plug

ings at front of unit should be free from obstruc-

prior to installing the drain hose.

tion to permit maximum unit capacity.

d. Power Sources.

Note. Remove discharge and intake grilles and filter,

(1) Model CV-9-1-30-60 operates on 230

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

the conditioned space. Install grilles and filter in the

volts, 60 cycle, single phase power.

duct.

(2) Model CV-9-3-08-400 operates on 208

Note. Remove the CB inlet cover (fig. 3-4) if a

volt, 400 cycle, 3 phase power.

chemical and biological filter unit is to be attached to

(3) Model CV-9-3-08-60 operates on 208

the unit.

volt, 60 cycle, 3 phase power.

(4) Model CV-9-1-15-60 operates on 115

c. Installing Unit. Bolt unit to floor or other

volt, 60 cycle, single phase power.

flat surface. Refer to base plan (fig. 1-4) for di-

(5) Power receptacle connector. Receptacle

mensions. An additional fastening device (fig.

is located at rear of unit above the condenser coil

1-3) is located on the upper rear side for addition-

air inlet. Connect the proper electrical power sup-

al mounting rigidity if required. Connect drain

ply source to this receptacle using a proper plug

hose to drain fitting at bottom of unit to lead

CONTROL PANEL:

STEP 1 - REMOVE THERMOSTAT CONTROL KNOB BY LOOSENING

SET SCREW.

STEP 2 - REMOVE NUT FROM FAN SPEED SWITCH .

STEP 3 - REMOVE SELECTOR SWITCH KNOB BY LOOSENING

SET SCREWS .

STEP 4 - UNSCREW ELECTRICAL CONNECTOR .

STEP 5 - REMOVE CONTROL BOX BY REMOVING SCREWS (4).

Figure 2-1 (1). Control box and controls, block-off plate. thermostat, thermostat

sensing bulb and control box back panel removal and installation

2-2