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WARNING

To avoid personal injury, shock or death, disconnect the
electrical power before electrically connecting any
equipment or changing any existing wiring.

COLOR CODE

1ST GROUP COLOR

2ND GROUP NUMBER

OR-ORANGE

BK-BLACK

YL-YELLOW

BU-BLUE

VT-VIOLET

RD-RED

BR-BROWN

TN-TAN

GN-GREEN

GY-GRAY

THERMOSTAT* CONNECTIONS TO RH-HEAT PUMPS

WITH INDOOR BLOWER COIL

* Approved Thermostats are:

THSMEC1H2BA

THSMDC1H2BA
THSADC1H2BA
THSMDC1H3BA
THSADC1H3BA
THPMFC1H2BA

C) ATK Controlling ALL Electric Heat

Morning Warmup Could be Slow - 4.8 to 28.8KW

ROOM THERMOSTAT

(6 wires)

BHA BLOWER COIL

(5 wires)

RH OUTDOOR UNIT

Notes: (1) BHA-TB blowers may require additional wire(s) here. See BHA-TB wiring diagram for details.

Thermostats shown with required connections only. Thermo-
stats may have other terminals not shown in diagrams.

C/X

RHxEH003

ATK05

(1)

R Y

W2 E

C/X

W1 Y E W2 G

C/X

Содержание RHE**A2 Series

Страница 1: ...nking before acting Most dealers have a list of specific good safety practices follow them The precautions listed in this Installation Manual should not supersede existing practices but should be considered as supplemental information Table of Contents ATTENTION INSTALLING PERSONNEL 1 Safety Guidelines 2 General 2 SHIPPING AND HANDLING 2 LOCATION AND CLEARANCES 2 ROOFTOP INSTALLATION 2 APPLICATION...

Страница 2: ...servicing the unit s must be provided If installing two or more units at the same location allow at least 24 inches between the units when using the 6 12 12 guidelines in Figure 1 The space between two units may be reduced to 12 if the clearances in Figure 1 are increased to 12 24 24 12 12 6 MINIMUM CLEARANCES SIDE VIEW 5 Figure 1 DO NOT locate the unit Directly under a vent termination for a gas ...

Страница 3: ...ak 3 After brazing quench the joints with water or a wet cloth This will also help prevent overheating of the service valve SWEAT CONNECTIONS AT THE INDOOR COIL Check the indoor coil liquid and vapor line diameter A bushing or coupling may be needed to match with the line sizes used If mix matching to a restrictor orifice indoor coil check the Specification Sheet for the proper orifice size to be ...

Страница 4: ...psig or less 2 Connect a cylinder of dry nitrogen to the center port on the gauge manifold 3 Open the hand valve a minimal amount on the line coming from the nitrogen cylinder 4 Open the high pressure valve on the gauge manifold Pressurize the refrigerant lines and the indoor coil to 150 psig 1034 kPA To reach 150 psig you may need to further open the hand valve on the nitrogen cylinder WARNING To...

Страница 5: ... the wiring diagram or Specifications sheet to determine if this unit has a crankcase heater If it does you must connect electrical power to the unit for four hours before operating the compressor Failure to do so could result in compressor damage IMPORTANT During all installation and service work follow all regulations of the Environmental Protection Agency This system uses R 22 R 22 is an HCFC H...

Страница 6: ...F Indoor 7 0 F I n d o o r 75 F Indoor 80 F Indoor 85 F Indoor THE RETAINER TO AVOID LOSS OF REFRIGERANT DO NOT APPLY PRESSURE TO THE RETAINER The outdoor unit is factory charged with enough R 22 for the matching indoor blower coil or matching A coil plus 25 feet of 3 8 inch liquid line Add or subtract 0 60 oz of R 22 per foot of 3 8 liquid line for any difference from 25 feet IMPORTANT Use only r...

Страница 7: ...ld be 350 to 450 CFM per ton of cooling based on the size of the outdoor unit The most common way of establishing indoor airflow is heating temperature rise Indoor airflow will then be Heating output of equip ment 1 1 x temp rise In other cases measurement of external static pressure is helpful For details see the Installation Manual for your indoor equipment If further information is needed see t...

Страница 8: ...riods is automati cally adjusted with every defrost cycle minimum of 30 minutes and maximum of 360 minutes WARNING To avoid electrical shock or death disconnect the electrical power When servicing it may be necessary to rapidly advance the system through a defrost cycle To do this 1 If the outdoor coil temperature is above 30 F place a jumper wire from R on the low voltage terminal strip to one of...

Страница 9: ...d normal 15 Check the amperage on the indoor blower motor Is it within the limits shown on the nameplate of the motor 16 Are all access panels installed and secured 17 Do controls function properly Are manual reset switches in the reset position high pressure cutouts relays etc 18 Check the voltage with unit running Does it check within the tolerance of 207 to 253V for 230V or 198 to 228V If using...

Страница 10: ... 6 to 28 8 KW Notes 1 BHA TB blowers may require additional wire s here See BHA TB wiring diagram for details 2 Emergency Heat will stop the compressor but it will not bypass the outdoor thermostat Only the amount of heat controlled by W2 will be energized above the ATK setpoint 3 See notes on page 12 regarding connector GY42 wire and staging of electric heat Approved Thermostats are THSMEC1H2BA T...

Страница 11: ...WITH INDOOR BLOWER COIL Approved Thermostats are THSMEC1H2BA THSMDC1H2BA THSADC1H2BA THSMDC1H3BA THSADC1H3BA THPMFC1H2BA C ATK Controlling ALL Electric Heat Morning Warmup Could be Slow 4 8 to 28 8KW ROOM THERMOSTAT 6 wires BHA BLOWER COIL 5 wires RH OUTDOOR UNIT Notes 1 BHA TB blowers may require additional wire s here See BHA TB wiring diagram for details Thermostats shown with required connecti...

Страница 12: ... Load at an outdoor temperature of 20 F It is usually desirable to provide a small amount of extra capacity Therefore for this instal lation the outdoor thermostat ATK05 should be set at 25 F This example is for purposes of illustration only Actual selection and application of equipment remains the sole responsibility of the installer If an outdoor thermostat not controlling the first group of ele...

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