uctionsOperating 1.Owner's
The Outdoor 
comes standard with the following additional components:
•Crankcase Heater
•Drain Line Heater
•Weather Hood
•Fan Cycling
(Pressure on 1 fan models, Pressure and Ambient on 2 fan models).
Standard Installation Procedure
PTT Models
For outdoor use
1.Provide a 25" X 25" (medium cabinet) or 25" X 38.5" (large cabinet) opening in the roof of
2.Apply silicone caulk around the perimeter of roof opening. Place the curb on roof of cooler. It is recommended that the curb be fastened to
the roof panels using 
system. (See Figure 1, page 7) Check the top of the curb with a level. 
units require
a surface that is within 1° of level or better and no more than a 5/8" drop per 3 feet
(17mm drop per meter).
3.Install the membrane onto the roof of the box and over the curb. Fasten to roof per panel manufacturer's instructions. The membrane material should be slit over the evaporator grill opening the flaps allowed to drape into the hole 2" - 4". (See Figure 2, page 7) Care should be taken during the membrane installation to prevent bunching or folding which could affect the gasket-
4.Remove the weather hood from the 
system. The compressor compartment cover(s) should be left in place during lifting/rigging.
5.Place 
system onto curbing and center over opening in roof box. (See Figure 3, page 7)
6.It is recommended that the 
system be secured to the curb with wood screws. Seal the screw heads as necessary to prevent moisture from entering beneath the membrane. Additional caulk may be applied around the perimeter of the evaporator box gasket. The compressor compartment should not be caulked.
7.Install trim pieces (if used) around the ceiling opening in cooler.
Condensate Drain
Outlet Location
8.Remove compressor compartment cover for access to electrical box.
9.Connect power wiring in accordance with all applicable building and electrical codes.
10.Reinstall condensing unit cover(s).
11.Reinstall the protective weather hood. (See Figure 4, page 7)
12.Apply power and check for proper operation.
Drain Line
A condensate drain outlet is located on the side of the compressor compartment. Field piping may be connected to the outlet provided it is adequately sloped and heated for freezing weather conditions. There is a drain line "P" trap located in the PTT unit.
General Safety information:
Do NOT lift the 
by the weather hood.
This product is not designed to be transported while installed or operating.