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361819-YIM-A-0208

Unitary Products Group

FIGURE 10:

Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Air Handler

HP 27C

Two Stage Heat Pump – Variable Speed Air Handler (With Hot Heat Pump Operation)

Reversing Valve

Energized in Cool

24 – Volt Common

24 – Volt Hot

W1 OUT

First Stage Heat

W2 OUT

Second Stage Heat

Y2 OUT

Second Stage Compressor

Single Stage Compressor

X/L

Malfunction Light

Second Stage Compressor

Auxiliary Heat

Bonnet Sensor

BSG

Bonnet Sensor

TWO STAGE

HEAT PUMP

24 – Volt Common

24 – Volt Hot

First Stage Compressor

Reversing Valve

Energized in Cool

Malfunction Light

Second Stage Compressor

Fan

*DN22H00124

*DP22U70124

THERMOSTAT

E/W1

First Stage Aux. Heat

Second Stage Aux. Heat

Step 1 of Thermostat

Installer/Configuration

Menu must be set to “HP2”

Selection of GAS/ELEC

switch on thermostat

not necessary

24 – Volt Common

First Stage Compressor

O/B

Reversing Valve

Malfunction Light

Second Stage Compressor

Fan

*PP32U70124

THERMOSTAT

Emergency Heat

24 – Volt Hot

(Heat XFMR)

24 – Volt Hot
(Cool XFMR)

Thermostat Installer Setup

0170-System Type-

must be set to 12

3 Heat/2 Heat Pump

Thermostat Installer Setup

0190-Changeover Valve-

must be set to 0

O/B terminal

Energized in Cooling

Thermostat Installer Setup

0200-Backup Heat Source-

must be set to 0

Heat Pump Backup Heat

Source is Electric

AUX

Auxiliary Heat

24VAC Humidifier

(Optional)

Part Numbers:

SAP = Legacy

159481 = 031-09157

COM

24 – Volt Common

24 – Volt Hot

First Stage Aux. Heat

Second Stage Aux. Heat

Single Stage Compressor

Y/Y2

Second or Full

Stage Compressor

Reversing Valve

Energized in Cool

X/L

Malfunction Light

HUM

Dehumidification-

Open on Humidity Rise

VARIABLE SPEED

AIR HANDLER CONTROL

Fan

Move the MODE

jumper to “HP”

Move HUM STAT

jumper to “YES”

if humidistat is to be used.

VARIABLE SPEED

AIR HANDLER

Part Numbers:

SAP = Legacy

126768 = 031-09137

18395 = 031-01996
340512 = 031-09178

ID MODELS

YZE

YZH

H*5

YORKGUARD VI

CONTROL

H*8

24VAC

Electronic Air Cleaner

(Optional)

EAC(24 VAC out)

Electronic Air Cleaner

External Humidistat

(Optional)

Open on Humidity Rise

HUM OUT

(24 VAC out)

Refer to AH documentation

for W1 and W2 electric

heat staging options.

Second stage auxiliary

heat will be controlled by

the thermostat, not the

heat pump control when

wired as shown.

OD MODELS

Change Hot Heat Pump

jumper on the heat pump

control to “ON”

Part Number:

S1-2HU16700124

Содержание YZE03811 SERIES

Страница 1: ...ty dam age Improper installation may create a condition where the operation of the product could cause personal injury or property damage Improper installation adjustment alteration service or mainte nance can cause injury or property damage Refer to this manual for assistance or for additional information consult a qualified con tractor installer or service agency This product must be installed i...

Страница 2: ...ground area the unit should be raised sufficiently above the roof or ground to avoid taking the accumulated layer of hot air into the outdoor unit Provide an adequate structural support ADD ON REPLACEMENT RETROFIT When this unit is being used as a replacement for an R 22 unit it is required that the outdoor unit indoor coil and metering device all be replaced The following steps should be performe...

Страница 3: ...ll a line will result in loss of capacity and other problems caused by insufficient refrigerant flow Slope horizontal vapor lines at least 1 every 20 feet toward the out door unit to facilitate proper oil return PRECAUTIONS DURING LINE INSTALLATION 1 Install the lines with as few bends as possible Care must be taken not to damage the couplings or kink the tubing Use clean hard drawn copper tubing ...

Страница 4: ...rvice port connection After this con nection has cooled remove the nitrogen source from the liquid fit ting service port 7 Replace the Schrader core in the liquid and vapor valves 8 Go to SECTION IV for TXV installation 9 Leak test all refrigerant piping connections including the service port flare caps to be sure they are leak tight DO NOT OVER TIGHTEN between 40 and 60 inch lbs maximum 10 Evacua...

Страница 5: ...ertical run the bulb should be located at least 16 inches from any bend and on the tub ing sides opposite the plane of the bend The bulb should be positioned with the bulb tail at the top so that the bulb acts as a reservoir c Bulb should be insulated using thermal insulation provided to protect it from the effect of the surrounding ambient tempera ture SECTION V ELECTRICAL CONNECTIONS GENERAL INF...

Страница 6: ...educed air flow lowering evaporator temperature and increasing latent capacity The humidistat in this control opens the humidistat contacts on humidity rise To install refer to instructions packaged with the acces sory and Figures 7 12 Prior to the installation of the dehumidification control the jumper across the HUMIDISTAT terminals on the indoor variable speed air handler or furnace CFM selecti...

Страница 7: ...tage Aux Heat W2 Second Stage Aux Heat DHM Dehumidistat HM Humidistat O Reversing Valve Energized in Cool Change FFuel jumper on the heat pump control to ON Part Numbers SAP Legacy 126768 031 09137 18395 031 01996 340512 031 09178 1 1 Part Numbers SAP Legacy 265904 031 09169 2 C 24 Volt Common R 24 Volt Hot Y1 Single Stage Compressor TWO STAGE VARIABLE SPEED FURNACE CONTROL G Fan TWO STAGE VARIABL...

Страница 8: ... to YES if humidistat is to be used PV 8 9 ID MODELS F L 8 9 V YORKGUARD VI CONTROL G L 8 9 V YZE OD MODELS YZH H 5 H 8 C 24 Volt Common R 24 Volt Hot Y1 First Stage Compressor O Reversing Valve Energized in Cool L Malfunction Light Y2 Second Stage Compressor G Fan DN22H00124 DP22U70124 THERMOSTAT E W1 First Stage Aux Heat W2 Second Stage Aux Heat C 24 Volt Common Y First Stage Compressor O B Reve...

Страница 9: ...9481 031 09157 2 COM 24 Volt Common R 24 Volt Hot W1 First Stage Aux Heat W2 Second Stage Aux Heat Y1 Single Stage Compressor Y Y2 Second or Full Stage Compressor O Reversing Valve Energized in Cool X L Malfunction Light HUM Dehumidification Open on Humidity Rise VARIABLE SPEED AIR HANDLER CONTROL G Fan Move the MODE jumper to HP Move the HUM STAT jumper to YES if humidistat is to be used VARIABLE...

Страница 10: ...ype must be set to 12 3 Heat 2 Heat Pump Thermostat Installer Setup 0190 Changeover Valve must be set to 0 O B terminal Energized in Cooling Thermostat Installer Setup 0200 Backup Heat Source must be set to 0 Heat Pump Backup Heat Source is Electric AUX Auxiliary Heat 1 24VAC Humidifier Optional Part Numbers SAP Legacy 159481 031 09157 2 COM 24 Volt Common R 24 Volt Hot W1 First Stage Aux Heat W2 ...

Страница 11: ...e Aux Heat DHM Dehumidistat HM Humidistat O Reversing Valve Energized in Cool C 24 Volt Common R 24 Volt Hot Y1 Single Stage Compressor VARIABLE SPEED MODULATING FURNACE CONTROL G Fan VARIABLE SPEED MODULATING FURNACE Y Y2 Second or Full Stage Compressor HUM Dehumidification Open on Humidity Rise W Modulating Heat Change FFuel jumper on the heat pump control to ON 1 Part Numbers SAP Legacy 171334 ...

Страница 12: ...1 01996 340512 031 09178 1 PC 8 9 ID MODELS FC 8 9 C FL 8 9 C YZE OD MODELS YZH H 5 H 8 C 24 Volt Common R 24 Volt Hot Y1 First Stage Compressor O Reversing Valve Energized in Cool L Malfunction Light Y2 Second Stage Compressor G Fan DN22H00124 DP22U70124 THERMOSTAT E W1 First Stage Aux Heat W2 Second Stage Aux Heat C 24 Volt Common Y First Stage Compressor O B Reversing Valve L Malfunction Light ...

Страница 13: ...is required during heating operation the unit must be evacuated and charge weighed in per the marking on the rating plate For the cooling operation the recommended subcooling is typically around 10 F This may vary greatly based on each unique system 1 Set the system running in the cooling mode by setting the thermo stat at least 6 F below the room temperature 2 Operate the system for a minimum of ...

Страница 14: ...r to prevent the migration of refrigerant to the compressor during the OFF cycle The heater is energized only when the unit is not running If the main switch is disconnected for long peri ods of shut down do not attempt to start the unit until 8 hours after the switch has been connected This will allow sufficient time for all liquid refrigerant to be driven out of the compressor The installer shou...

Страница 15: ...361819 YIM A 0208 Unitary Products Group 15 SECTION X WIRING DIAGRAM FIGURE 14 Wiring Diagram ...

Страница 16: ...ct to change without notice Printed in U S A 361819 YIM A 0208 Copyright by Unitary Products Group 2008 All rights reserved Supersedes 128596 YIM A 0505 Unitary 5005 Norman Product York OK Group Drive 73069 ...

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