Heatcraft Refrigeration Products H-IM-82B installation and operation guide Operating Instructions

Page 5

Rigging

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.

Access Requirements

Provide adequate space at the compressor end of the unit for servicing. Provide two (2) feet of space above unit for service.

Mounting

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.

Operating Instructions

 

Trim Pieces (4)

Trim Ring

Overlap as Shown

 

Installation

 

Detail

 

 

Ceiling of Walk-in.

 

Evaporator Grill

 

Self Drilling Screw

1. Owner’s

Inspection

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.

Table 4. Control Factory Default Settings

General Safety Information

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.

PTT

Temperature

Defrost

Defrost Duration

Drip

Fan

Defrost Termination

Models

Set Points

Start Times

(Maximum)

Time

Delay

Set Point

Cooler Models

35˚F

Every 3 hours of

60 min.

38˚F

All cabinet sizes

compressor run time

 

 

 

 

 

Freezer Models

-10˚F

4 / day

40 min.

2 min.

2 min.

65˚F

Med. & Lg. cabinet

 

 

 

 

 

 

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Contents Refrigeration System UctionsOperating 1.Owners SpecificationsPerformance / Electrical Data Coolers Air Defrost Systems Freezers Electric Defrost SystemsModels PTT 021, 031, 044, 047, 063 Models PTT 052, 069, 099 Dimensional DiagramsOwners Operating Instructions Top View One System Recommended Unit Placement For PTT ModelsTop View Two Systems MinOperating Instructions PTT Models Standard Installation ProcedureDrain Line Owners Operating Instructions Freezers HOW to Change the Setpoint HOW to see the SetpointHOW to Start a Manual Defrost HOW to Enter the Hidden MenuMessage Cause Outputs Alarm SignalsSystem Standard Maintenance Guidelines Room Thermostat SettingsCooler Defrost Control Air Defrost Sequence of Operation for CoolersProblem Possible Causes Possible Corrective Steps System Troubleshooting ChartDependable. Versatile. Courteous Replacement Parts byRight source. Right parts. Right now PTT047H2B, PTT063H2B Diagram 1. PTT072H2B Cooler AirAir Defrost 208-230/1/60 B Models Freezer Electric Defrost Wiring InformationDefrost 208-230/1/60 VoltagesInformationWirig 208-230V/3PH/60HZ Models PTT099H2C and PTT128H2CWiriInformation.5g Only Freezer- Electric Defrost Systems Three Phase230/3/60 PTT069L6COptional Three-Year Extended Compressor Warranty Warranty Statement