INSTALLATION INSTRUCTIONS
WALL MOUNTING INFORMATION
1.Two holes for the supply and return air openings must be cut through the wall as shown in Figure 3.
2.On wood frame walls, the wall construction must be strong and rigid enough to carry the weight of the unit without transmitting any unit vibration.
3.Concrete block walls must be thoroughly inspected to insure that they are capable of carrying the weight of the installed unit.
MOUNTING THE UNIT
1.These units are secured by wall mounting brackets which secure the unit to the outside wall surface at both sides. A bottom mounting bracket, attached to skid for shipping, is provided for ease of installation, but is not required.
2.The unit itself is suitable for 0 inch clearance, but the supply air duct flange and the first 3 feet of supply air duct require a minimum of 1/4 inch clearance to combustible material for model series W30, W36, W42, W48, W60 and W70. However, it is generally recommended that a
3.Locate and mark lag bolt locations and bottom mounting bracket location. See Figure 3.
4.Mount bottom mounting bracket.
5.Hook top rain flashing, attached to front - right of supply flange for shipping, under back bend of top.
WARNING
Failure to provide the 1/4 inch clearance between the supply duct and a combustible surface for the first 3 feet of duct can result in fire causing damage, injury or death.
6.Position unit in opening and secure with 5/16 lag bolts; use 7/8 inch diameter flat washers on the lag bolts.
7.Secure rain flashing to wall and caulk across entire length of top. See Figure 3.
8.For additional mounting rigidity, the return air and supply air frames or collars can be drilled and screwed or welded to the structural wall itself (depending upon wall construction). Be sure to observe required clearance if combustible wall.
9.On
Clearances Required for Service Access and Adequate Condenser Airflow
MODELS | LEFT SIDE | RIGHT SIDE |
W18A, W24A, W30A, W36A | 15" | 20" |
W18L, W24L, W30L, W36L | 20" | 15" |
W42A, W48A, W60A, W70A | 20" | 20" |
W42L, W48L, W60L, W70L | 20" | 20" |
NOTE: For side by side installation of two (2) W**A models there must be 20" between units. This can be reduced to 15" by using a W**L model (left side compressor and controls) for the left unit and WA (right side compressor and controls) for right unit.
See W**A Specification S3397 & W**L Specification S3400.
Minimum Clearances Required to Combustible Materials
MODELS | SUPPLY AIR DUCT | CABINET | |
FIRST THREE FEET | |||
W18A, L / W24A, L | 0" | 0" | |
W30A, L / W36A, L | 1/4" | 0" | |
W42A, L / W48A, L | 1/4" | 0" | |
W60A, L / W70A, L | |||
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Manual
