HTPG ASLA-ASLE Temp Unit Coolers Air and Electric Defrost Instruction Manual
- June 1, 2024
- HTPG
Table of Contents
HTPG ASLA-ASLE Temp Unit Coolers Air and Electric Defrost
Specifications
- Model: ASL Slim-Temp Unit Coolers
- Defrost Type: Air and Electric
- Installation: Rear discharge unit
- Dimensions: 19-13/16″ x 18-3/4″
- Mounting Holes: 3/8″ Diameter
Product Usage Instructions
Inspection
Upon receiving the equipment, check the number of crates and cartons
against the bill of lading. Note any damage and report it to the carrier and
the manufacturer. Ensure unit name plates match available power.
Installation
Installation and maintenance should be done by qualified personnel familiar
with local codes. Install the unit level for proper drainage. Maintain
clearances for air flow and service access. Support the unit securely to meet
NSF requirements.
Refrigerant Connections
Follow all applicable codes when installing refrigerant connections. Use
good refrigeration practices, install a suction line trap, slope horizontal
suction lines, and properly insulate lines to prevent sweating.
Wiring
Refer to the provided wiring diagrams for air and electric defrost models.
Ensure proper electrical connections following safety guidelines.
General Maintenance:
Regularly clean dirt accumulation on the fan, fan guard, or coil. The
motors are lubricated for life and do not require regular maintenance.
FAQ
Q: Do I need to file freight claims in case of shortages or damages upon
receiving the equipment?
A: Yes, it is the customer’s responsibility to file all freight claims with
the carrier if any shortages or damages are observed upon receiving the
equipment.
Publication No. HT-ASL-IOM-0720A Part No. 08534776
ASL Slim-Temp Unit Coolers
Air and Electric Defrost Models
Installation and Operations Manual
Inspection
When the equipment is received, the number of crates and cartons should be
checked against the bill of lading for possible shortages. Any damage should
be noted immediately and a report given to the carrier and the HTP factory. It
is the customer’s responsibility to fi le all freight claims with the carrier.
Unit name plates should be checked to make sure voltages are in agreement with
the power available.
Installation
Installation and maintenance to be preformed by qualifi ed personnel who are
familiar with the local codes and regulations and who are experienced with
this type of equipment.
CAUTION: Avoid contact with sharp edges and coil surfaces. They are
potential hazards.
The unit must be installed level for proper drainage. This rear discharge
unit, draws air up through the fan blades and discharges out the coils length.
Proper clearances should be maintained for proper air fl ow and service access
to the unit as follows: 6” minimum between each coil and wall. The unit should
be supported on #10 screws or 1/4” diameter bolts. To meet NSF requirements,
the unit must be positioned fl ush with the ceiling and all gaps properly
caulked.
Refrigerant Connections
Refrigerant connections should be installed in accordance with all applicable
codes and using good refrigeration practices. A suction line trap must be
installed prior to any risers in the suction line. Horizontal suction lines
should be sloped to provide proper oil return to the compressor. Suction lines
should be properly insulated to prevent sweating and higher return gas
temperatures.
Drain Line
The drain line should be sharply pitched and should exit the enclosure as
quickly as possible. The drain line should be insulated and sealed where it
passes through the wall and trapped outside the refrigerated area and
protected from freezing. In room temperatures below 34° F, the drain line
should be heated and insulated.
Wiring
Wiring should be done in accordance with all national and local codes.
Electric defrost units
are supplied with a temperature sensing defrost termination switch which will
terminate the defrost at a preset temperature. A fan delay switch is also
provided to allow the coil to cool down prior to the fans turning on after
defrost. The time clock should be adjusted to have a maximum of a 30 minute
override to prevent overheating and steaming of the coils. The number of
defrosts per day will be determined by the usage of the box and the frost
buildup on the coils. On hot gas units, refer to the system manufacturer’s
recommendations.
Expansion Valve
Expansion valves are to be installed in accordance with the specifi c
manufacturer’s recommendations. Units that require an external equalized
expansion valve must have that line connected. Proper location of the bulb is
extremely important to the performance of the coil. Good thermal contact to
the suction line is also essential. On solder type valves, a wet cloth wrapped
around the valve during installation will protect it from overheating and
damage. Superheat settings should be checked after the system has balanced out
at the desired room temperature. On systems sized for a 10° to 12°F TD, the
valve should be adjusted to maintain 5° to 6°F superheat. Higher TD
applications will allow a higher superheat setting. On multiple evaporator
systems, the piping should be arranged such that the fl ow from any valve
cannot affect the bulb of an other.
General Maintenance
General maintenance involves an occasional cleaning of dirt accumulation on the fan, fan guard or coil. The motors are life lubricated and do not require any regular maintenance.
Installation and Operations Manual
ASL Slim-Temp Unit Coolers
ASLA/ASLE Slim-Temp Unit Coolers Replacement Parts
| Part Number | Description |
|---|
All ASLA/ASLE Models
08219328| CNTL,DTFD,SPDT,O35/C55+O55/ C35
103079003| CONTROL, HTR SAFETY
082161211| MOTOR,ECM,16W,115/230V, 2SPEED
08533917| FAN BLADE,1028CCW-1/4
08533916| FAN BLADE,1028CCW-1/4 (REV)
201006002| FAN GUARD, WIRE, EPOXY COATED, 10″
201006002| FAN GUARD, WIRE, EPOXY COATED, 10″
ASLE Electric Defrost Models
ASL25-46E
205221013| DEFROST HEATERS, CORE, 1300 WATTS, 39″ LENGTH, 230 V.
20248901| DRAIN PAN, 46″ LENGTH
ASL35-70E
205221016| DEFROST HEATERS, CORE, 1850 WATTS, 62″ LENGTH, 230 V.
20248902| DRAIN PAN, 69″ LENGTH
ASL45-94E
**** 205221007| DEFROST HEATERS, CORE, 1250
WATTS, 42″ LENGTH, 230 V. (2 REQ’D)
20248903| DRAIN PAN, 92″ LENGTH
ASL55-117E
**** 205221010| DEFROST HEATERS, CORE, 1600 WATTS, 54″ LENGTH, 230 V. (2
REQ’D)
20248904| DRAIN PAN, 115″ LENGTH
Part Number| Description
---|---
ASLE 25-46
205221013| DEFROST HEATERS, CORE, 1300 WATTS, 39″ LENGTH, 230 V.
202489001| DRAIN PAN
ASLE 25-58
200172026| DEFROST HEATERS, CORE, 1970 WATTS, 48″ LENGTH, 230 V.
202489001| DRAIN PAN
ASLE 35-70
205221016| DEFROST HEATERS, CORE, 1850 WATTS, 62″ LENGTH, 230 V.
202489002| DRAIN PAN
ASLE 45-94
205221007
| DEFROST HEATERS, CORE, 1250 WATTS, 42″ LENGTH, 230 V. (2
REQ’D)
202489003| DRAIN PAN
ASLE55-117
**** 205221010| DEFROST HEATERS, CORE, 1600
WATTS, 54″ LENGTH, 230 V. (2 REQ’D)
202489004| DRAIN PAN
TO INQUIRE OR ORDER REPLACEMENT PARTS
Email: parts@htpg.com
Telephone: 1-855-HTPARTS
(1-855-487-2787)
Fax: 256-259-7478
- Provide the complete Model Number and Serial Number of the unit.
- Provide a detailed description of the part with any model, diameter, HP, or other markings.
- State the quantity you are ordering.
- Advise special shipping methods, routes, procedures, or instructions with ship to address.
- Provide complete and accurate data to insure prompt and accurate delivery.
Due to continuing product development, specifi cations are subject to change
without notice.
A member of the Rheem family of brands
3885 Crestwood Pkwy., Ste. 500 • Duluth, Georgia 30096 • www.htpg.com E-mail or call us for help: parts@htpg.com or 1-855-HTPARTS (1-855-487-2787)
References
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