Section VI. MATERIAL USED IN CONJUNCTION WITH THE EQUIPMENT

2-17. Operation In Snow

t h e air conditioning filter, fresh air inlet screen and

condenser coil guard daily.

If the unit is outside and not operating, protect it

w i t h the canvas cover (fig. 1-2) or other waterproof

2-19. Operation At High Altitudes

material. Remove cover during dry periods and

If the unit is being operated at high altitudes,

open the front access panel to allow unit to dry

p r o t e c t it from over heating. Allow sufficient room

b e f o r e operating. Make sure the electrical system is

around the air conditioner for adequate air cir-

free of ice and moisture.

culation.

2-18. Operation In Mud

2-20. Operation Below Sea Level

Use the same precautions as for humid or rainy

No special instructions are required for operation

conditions. Be sure that the condenser coil and

b e l o w sea level, except, observe precautions of other

evaporator coil are clean before operating. Clean

environmental conditions present.

Section VI. MATERIAL USED IN CONJUNCTION WITH THE EQUIPMENT

2-21. Canvas Cover

base of the air conditioner to secure the lower

portion of the condenser coil and guard to the

a . Opening for Cooling Operation. (fig. 1-1 and

casing.

1-2. The canvas cover is fastened to the sides,

c. Installation (fig. 1-2). Installation of the

bottom and top of the air conditioner with screws

canvas cover shall be in the reverse order of

and washers. It may be left secured to the casing

removal.

a n d opened for cooIing or ventilating operation by

o p e n i n g the zippered center flap and rolling the flap

2-22. Sound Attenuator

u p to expose the condenser air intake and discharge

A sound attenuator is recommended for use on this

o p e n i n g s . The rolled flap may be kept in place by

air conditioner when quieter operation is required.

s e c u r i n g with the two turn button fasteners located

Sufficient clearance must be allowed when the

o n the top of the air conditioner.

sound attenuator is utilized. The attenuator

CAUTION

provides a sound dampening effect for the normal

Never operate the air conditioner on the

s o u n d s the air conditioner emits. It is mounted on

cooling or ventilating mode unless the

t h e front of the air conditioner, and may be used in

canvas cover is rolled, up or removed

cases where the system does not have air ducts

completely.

attached. The attenuator replaces the intake air

b. Removal (fig. 1-2). The cover is removed

and discharge air grilles. The return air enters the

from the air conditioner by removal of the 16

bottom, and the conditioned air leaves the top of

screws and washers securing it to the top, bottom

t h e attenuator. Refer to figure 1-3 for proper sound

a n d sides of the air conditioner. After removing the

attenuator installation.

cover, replace the four screws and washers at the

2-10