Heatcraft Refrigeration Products H-IM-82B User Manual

PTT  

Models

Temperature 

Set Points

Defrost 

Start Times

Defrost Duration 

(Maximum)

Drip

Time

Fan 

Delay

Defrost Termination

Set Point

Cooler Models

    All cabinet sizes

35˚F

Every 3 hours of

compressor run time

60 min.

–

–

38˚F

Freezer Models

    Med. & Lg. cabinet

-10˚F

4 / day

40 min.

2 min.

2 min.

65˚F

Rigging holes are provided on all models. Caution should be 

exercised when moving these units. To prevent damage to 

the unit housing during rigging, cables or chains used must 

be held apart by spacer bars. The mounting platform or base 

should be level and located so as to permit free access of 

supply air.  The unit weather hood may be removed for the 

rigging process.  The condensing unit cover (wrapper) should 

be left in place.

Provide adequate space at the compressor end of the unit for 

servicing. Provide two (2) feet of space above unit for service.

The system requires an opening in the ceiling to the 

dimensions stated on page 3. Mounting rails are located 

at both ends of the chassis. Mounting rails may be used to 

attach unit to ceiling. Through-bolts should be insulated or 

non-conductive to prevent sweating. The chassis is weather 

stripped around the air grille and will seal to the box roof. 

The trim ring (shipped loose), when provided, should be 

installed around the air diffuser when secured with the 

hardware provided. Be sure to adhere to your local standard 

construction codes.

1.  Each shipment should be carefully checked against the 

bill of lading.

2.  The shipping receipt should not be signed until all items 

listed on the bill of lading have been accounted for.

3.  Check packaging for signs of damage.
4.  Any shortage or damages should be immediately 

reported to the delivering carrier.

5.  Damaged material becomes the delivering carrier’s 

responsibility, and should not be  returned to the 

manufacturer unless prior approval is given to do so.

6.  When unpacking the system, care should be taken to 

prevent damage.

7.  Avoid removing the shipping base until the unit has been 

moved to the final destination.

8.  Complete warranty return card for each unit and mail to 

Heatcraft Refrigeration Products.

1.  Installation and maintenance to be performed only by 

licensed contractor.

2.  Ensure that the structural integrity of the box can 

withstand the weight of the 

 (See page 2, Table 3 for 

unit weights).

3.  Avoid contact with sharp edges and coil surfaces.  

They are a potential injury hazard.  Wear gloves during 

moving and rigging.

4.  Make sure all power sources are disconnected before 

any service work is done on units.

Trim Pieces (4)
Overlap as Shown

Evaporator Grill

Self Drilling Screw

Ceiling of Walk-in.