Rheem H2AC Скачать руководство пользователя

Страница: 3 / 52

THE MANUFACTURER’S WARRANTY
DOES NOT COVER ANY DAMAGE OR
DEFECT TO THE AIR CONDITIONER
CAUSED BY THE ATTACHMENT OR
USE OF ANY COMPONENTS, ACCES-
SORIES OR DEVICES (OTHER THAN
THOSE AUTHORIZED BY THE MANU-
FACTURER) INTO, ONTO OR IN CON-
JUNCTION WITH THE AIR CONDI-
TIONER. YOU SHOULD BE AWARE
THAT THE USE OF UNAUTHORIZED
COMPONENTS, ACCESSORIES OR
DEVICES MAY ADVERSELY AFFECT
THE OPERATION OF THE AIR CONDI-
TIONER AND MAY ALSO ENDANGER
LIFE AND PROPERTY. THE MANU-
FACTURER DISCLAIMS ANY
RESPONSIBILITY FOR SUCH LOSS
OR INJURY RESULTING FROM THE
USE OF SUCH UNAUTHORIZED
COMPONENTS, ACCESSORIES OR
DEVICES.

CHECKING PRODUCT RECEIVED

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.

EQUIPMENT PROTECTION FROM THE
ENVIRONMENT

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

I. SPECIFICATIONS

A. GENERAL

The Rheem H2AC Rooftop Unit Combination Gas Heating/Electric Cooling Rooftop
with integrated Potable Water Heating is available in 250,000 BTUH and 350,000
BTUH gas heating inputs. Cooling capacity is 15 nominal tons.

Potable water heating capacities range from approximately 117,000 BTUH to
145,000 BTUH depending on water temperature, indoor air temperatures, and indoor
CFM.

Units are designed for downflow-only supply and return air and are weatherized and
intended for outdoor installation.

Since the waste-heat recovery/water heating feature of the H

AC Rooftop Unit only

functions during the cooling mode, the unit should be installed to serve the area of
the structure having the largest cooling run-time load, for instance the kitchen area of
the restaurant, in order to provide the greatest water heating and energy saving ben-
efits.

B. MAJOR COMPONENTS

The typical unit includes a hermetically-sealed refrigerating system consisting of a
scroll compressor, condenser coil, evaporator coil with TXV, a circulation air blower, a
condenser fan, a refrigerant to air heat exchanger assembly, a refrigerant to water
heat exchanger, 3-way valve, and 2 solenoid valves, gas burner and control assem-
bly, combustion air motor and fan, and all necessary internal electrical wiring. The
cooling systems of these units are factory-evacuated, charged and performance test-
ed. 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
lines, or be allowed to accumulate in storage tanks. Leak checking should never
be done with a mixture of R-410A and air. Leak checking can be performed safely with
nitrogen or a mixture of R-410A and nitrogen.

Recognize this symbol as an
indication of Important Safety
Information!

UNITS ARE NOT DESIGN CERTIFIED
TO BE INSTALLED INSIDE THE
STRUCTURE. DOING SO CAN
CAUSE INADEQUATE UNIT PER-
FORMANCE AS WELL AS PROPERTY
DAMAGE AND CARBON MONOXIDE
POISONING RESULTING IN PERSON-
AL INJURY OR DEATH.

WARNING

PROVIDE ADEQUATE COMBUSTION
AND VENTILATION AIR TO THE UNIT
SPACE AS SPECIFIED IN THE COM-
BUSTION AND VENTILATION AIR
SECTION OF THESE INSTRUCTIONS.

WARNING

EFFICIENCY TESTING NOTICE
FOR PURPOSES OF VERIFYING OR
TESTING EFFICIENCY RATINGS, THE
TEST PROCEDURE IN TITLE 10 PART
431 APPENDIX A TO SUBPART F
(UNIFORM TEST METHOD FOR
MEASURING THE ENERGY
CONSUMPTION OF SMALL LARGE
AND VERY LARGE COMMERCIAL
PACKAGE AIR CONDITIONING AND
HEATING EQUIPMENT), TITLE 10
PART 431.76 SUBPART D (UNIFORM
TEST METHOD FOR MEASURING
ENERGY CONSUMPTION OF
COMMERCIAL WARM AIR
FURNACES), AND THE CLARIFYING
PROVISIONS PROVIDED IN THE
AHRI OPERATIONS MANUALS FOR
UNITARY LARGE EQUIPMENT
340/360, 365 AND COMMERCIAL
FURNACES THAT WERE APPLICA-
BLE AT THE DATE OF MANUFAC-
TURE SHOULD BE USED FOR TEST
SET UP AND PERFORMANCE.