Heat Controller A-13 II. Introduction, III. Checking Product Received, IV. Specifications

Recognize this symbol as an indi- ! cation of Important Safety

Information!

! WARNING

THE MANUFACTURER’S WARRAN- TY DOES NOT COVER ANY DAM- AGE OR DEFECT TO THE AIR CON- DITIONER CAUSED BY THE ATTACHMENT OR USE OF ANY COMPONENTS, ACCESSORIES OR DEVICES (OTHER THAN THOSE AUTHORIZED BY THE MANUFAC- TURER) INTO, ONTO OR IN CON- JUNCTION WITH THE AIR CONDI- TIONER. YOU SHOULD BE AWARE THAT THE USE OF UNAUTHO- RIZED COMPONENTS, ACCES- SORIES OR DEVICES MAY ADVERSELY AFFECT THE OPERA- TION OF THE AIR CONDITIONER AND MAY ALSO ENDANGER LIFE AND PROPERTY. THE MANUFAC- TURER DISCLAIMS ANY RESPON- SIBILITY FOR SUCH LOSS OR INJURY RESULTING FROM THE USE OF SUCH UNAUTHORIZED COMPONENTS, ACCESSORIES OR DEVICES.

!WARNING

INSTALL THIS UNIT ONLY IN A LOCATION AND POSITION AS SPECIFIED IN THE LOCATION REQUIREMENTS AND CONSIDER- ATIONS SECTION OF THESE INSTRUCTIONS. PROVIDE ADE- QUATE COMBUSTION AND VENTI- LATION AIR TO THE UNIT SPACE AS SPECIFIED IN THE VENTING SECTION OF THESE INSTRUC- TIONS.

!WARNING

PROVIDE ADEQUATE COMBUS- TION AND VENTILATION AIR TO THE UNIT SPACE AS SPECIFIED IN THE COMBUSTION AND VENTILA- TION AIR SECTION OF THESE INSTRUCTIONS.

II. INTRODUCTION

This booklet contains the installation and operating instructions for your combination gas heating/electric cooling unit. There are some precautions that should be taken to derive maximum satisfaction from it. Improper installation can result in unsatisfactory operation or dangerous conditions.

Read this booklet and any instructions packaged with separate equipment required to make up the system prior to installation. Give this booklet to the owner and explain its provisions. The owner should retain this booklet for future reference.

III. CHECKING PRODUCT RECEIVED

Upon receiving the unit, inspect it for any damage from shipment. Claims for damage, either shipping or concealed, should be filed immediately with the shipping company. IMPORTANT: Check the unit model number, heating size, electrical characteristics, and accessories to determine if they are correct.

IV. SPECIFICATIONS

A. GENERAL

The Combination Gas Heating/Electric Cooling Rooftop is available in 80,000, 100,000, 120,000 and 135,000 BTU/Hr. heating inputs and cooling capacities of 3, 31⁄2, 4, and 5 nominal tons of cooling. Units are convertible from bottom supply and return to side sup- ply and return by relocation of supply and return air access panels. See cover installa- tion detail.

The units are weatherized for mounting outside of the building.

!WARNING

UNITS ARE NOT DESIGN CERTIFIED TO BE INSTALLED INSIDE THE STRUC- TURE. DOING SO CAN CAUSE INADEQUATE UNIT PERFORMANCE AS WELL AS PROPERTY DAMAGE AND CARBON MONOXIDE POISONING RESULTING IN PERSONAL INJURY OR DEATH.

The information on the rating plate is in compliance with the FTC and DOE rating for sin- gle phase units. The following information is for three phase units which are not covered under the DOE certification program.

1.The energy consumption of the ignition system used with this unit is 9 watts.

2.The efficiency rating of this unit is a product thermal efficiency rating determined under continuous operating conditions independent of any installed system.

B.MAJOR COMPONENTS

The unit includes a hermetically-sealed refrigerating system (consisting of a scroll com- pressor, condenser coil, evaporator coil with thermostatic expansion valve), a circulation air blower, a condenser fan, a heat exchanger assembly, gas burner and control assem- bly, combustion air motor and fan, and all necessary internal electrical wiring. The cool- ing system of these units is factory-evacuated, charged with R-410A refrigerant and per- formance tested. Refrigerant amount and type are indicated on rating plate.

C. R410A REFRIGERANT

All units are factory charged with R-410A refrigerant.

1. Specification of R-410A:

Application: R-410A is not a drop-in replacement for R-22; equipment designs must accommodate its higher pressures. It cannot be retrofitted into R-22 units.

Pressure: The pressure of R-410A is approximately 60% (1.6 times) greater than R-

22.Recovery and recycle equipment, pumps, hoses and the like need to have design pressure ratings appropriate for R-410A. Manifold sets need to range up to 800 psig high-side and 250 psig low-side with a 550 psig low-side retard. Hoses need to have a service pressure rating of 800 psig. Recovery cylinders need to have a 400 psig service pressure rating. DOT 4BA400 or DOT BW400.

Combustibility: At pressures above 1 atmosphere, mixture of R-410A and air can become combustible. R-410A and air should never be mixed in tanks or supply

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