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8

A09276

A09277

RVS/Heat Stage 2

O/W2/B

Heat Stage 1

W/W1

Compressor Low

Y1

Compressor High

Y/Y2

Fan

G

24VAC Hot Heating

Rh

24VAC Hot Cooling

Rc

Dry Contact 1

D1

Dry Contact 2

D2

24VAC Common

C

Humidify

HUM

Outdoor Air Temp

OAT

Remote Room Sensor

RRS

OAT/RRS Return

SRTN

SRTN

Outdoor Sensor 

Humidifier Solenoid 

Valve  

Remote Room 

Sensor

O

Y1

W1

G

W2

C

Y2

Y1

Y/Y2

R

C

DH

 REMOVE J2
JUMPER FOR
HEAT STAGING

REMOVE J1 FOR
DEHUMIDIFY
MODES

Two-Stage

Air Conditioner

Thermidistat

Variable Speed

Fan Coil

TWO-STAGE

AIR CONDITIONER

THERMIDISTAT

Thermidistat Models T6---PRH---01 & TP---NRH---01

w/ Variable Speed Fan Coil & 2---Stage Air Conditioner

Thermidistat Model TSTATBBPRH01---B

w/ Variable Speed Furnace & 2---Stage Air Conditioner

Fig. 6 -- Thermidistat Wiring with 2--Stage Puron refrigerant Air Conditioner

A09278

Single Stage Furnace with 2---Stage Air Conditioner

A09279

2---Stage Thermostat with Single---Stage Furnace and

2---Stage Air Conditioner

HUMIDFIER

(24VAC)

Fig. 7 -- Generic Wiring Diagrams

(See Thermostat Installation Instruction for specific unit combinations)

127A

Содержание 127A

Страница 1: ... the OFF position There may be more than 1 disconnect switch Lock out and tag switch with a suitable warning label INSTALLATION INSTRUCTIONS NOTE In some cases noise in the living area has been traced to gas pulsations from improper installation of equipment 1 Locate unit away from windows patios decks etc where unit operation sound may disturb customer 2 Ensure that vapor and liquid tube diameter...

Страница 2: ...7_C when operating voltage is 230v For 208v applications the maximum outdoor ambient is 120_F NOTE Units operating at high stage operation 208v or below line voltage and at an outdoor ambient 120_F or greater may experience compressor trip NOTE This product is not approved for low ambient cooling at this time and no low ambient kit is available Make Piping Connections WARNING PERSONAL INJURY AND E...

Страница 3: ...ptions on 18 42 size units see Product Data or Residential Piping and Application Guideline Install Liquid Line Filter Drier Indoor CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation 1 Installation of filter drier in liquid line is required 2 Filter drier must be wrapped in a heat sinking material such as a wet cloth while brazing Refer t...

Страница 4: ...with thermostat Use No 18 AWG color coded insulated 35_C minimum wire If thermostat is located more than 100 ft 30 48 m from unit as measured along the control voltage wires use No 16 AWG color coded wire to avoid excessive voltage drop All wiring must be NEC Class 1 and must be separated from incoming power leads Use furnace transformer fan coil transformer or accessory transformer for control po...

Страница 5: ...and second stage cooling are satisfied the compressor will shut off Therefore with first stage of cooling Y1 is powered on and with second stage of cooling Y1 and Y2 are powered on When a 2 stage unit is operating at low stage system vapor suction pressure will be higher than a standard single stage system or high stage operation Compressor Operation on 127A Models The basic scroll design has been...

Страница 6: ...d periodic maintenance requirements outlined in manual 5 Fill out Dealer Installation Checklist and place in customer file TROUBLESHOOTING If the compressor fails to operate with a cooling call the table below Resistance table can be used to verify if there is any damage to the compressor windings causing system malfunction Table 3 Winding Resistance Winding Winding resistance at 70_F 20_F 21 11_C...

Страница 7: ...has a 24 volt coil and is controlled by Y1 input from the thermostat High and Low Pressure Switches High and low pressure switches are provided in line with the Y1 signal to the contactor for protection The high pressure switch mounted on the liquid tube is set to open at 670 psi and higher and the low pressure switch mounted on the suction tube opens at a pressure of 50 psi and lower CARE AND MAI...

Страница 8: ...HUMIDIFY MODES Two Stage Air Conditioner Thermidistat Variable Speed Fan Coil TWO STAGE AIR CONDITIONER THERMIDISTAT Thermidistat Models T6 PRH 01 TP NRH 01 w Variable Speed Fan Coil 2 Stage Air Conditioner Thermidistat Model TSTATBBPRH01 B w Variable Speed Furnace 2 Stage Air Conditioner Fig 6 Thermidistat Wiring with 2 Stage Puron refrigerant Air Conditioner A09278 Single Stage Furnace with 2 St...

Страница 9: ... liquid line filter driers with rated working pressures less than 600 psig S Do not leave Puron suction line filter driers in line longer than 72 hours S Do not install a suction line filter drier in liquid line S POE oils absorb moisture rapidly Do not expose oil to atmosphere S POE oils may cause damage to certain plastics and roofing materials S Wrap all filter driers and service valves with we...

Страница 10: ...or change at any time specifications or designs without notice and without incurring obligations E2009 Bryant Heating Cooling Systems D 7310 W Morris St D Indianapolis IN 46231 Printed in U S A Edition Date 12 09 Replaces New Catalog No II127A 01 127A ...

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