Heatcraft Refrigeration Products H-IM-82C Standard Installation Procedure, Drain Line, PTT Models

The Outdoor comes standard with the following additional components:

1.Owner's	•	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 walk-in cooler or as specified by the panel manufacturer.

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 non-conductive bolts or insulating the bolt heads. Bolt heads should be countersunk or low profile to prevent contact with the 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- to-curb sealing or trap rainwater adjacent to the curb.

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.

6

Installation and Operations Manual

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.