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INSTALLATION MANUAL
R-410A
OUTDOOR SPLIT-SYSTEM
HEAT PUMP
MODELS: 15 SEER - YZE / HC5B / HL5B SERIES
2 TO 5 TONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATIONS REQUIRING TXV . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Tubing Hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Typical Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CFM Selection Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical Variable Speed Air Handler Thermostat Wiring . . . . . . . . . . . . . . . . . . . . 6
TEST Input Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operational Mode Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Status Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
X/L Output Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operational Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Sensor or Switch Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Wiring Related Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Defrost Initiate Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SECTION I: GENERAL
The outdoor units are designed to be connected to a matching indoor
coil with sweat connect lines. Sweat connect units are factory charged
with refrigerant for a matching indoor coil plus 15 feet of field supplied
lines.
Matching indoor coils are available with a thermal expansion valve or
an orifice liquid feed sized for the most common usage. The orifice size
and/or refrigerant charge may need to be changed for some indoor-out-
door unit combinations, elevation differences or total line lengths. Refer
to Application Data covering "General Piping Recommendations and
Refrigerant Line Length" (Part Number 036-61920-001).
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
TABLE OF CONTENTS
EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
LIST OF FIGURES
Typical Variable Speed Furnace Thermostat Wiring . . . . . . . . . . . . . . . . . . . . . . 6
Heat Pump Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Demand Defrost Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Defrost Operation Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hot Heat Pump Indoor Airflow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Jumper Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
LIST OF TABLES
Table 16 Switch Point Exit Temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Air Handler Auxiliary Heat Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fossil Fuel Furnace Auxiliary Heat Functionality . . . . . . . . . . . . . . . . . . . . . . . . 17
R-410A Saturation Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
15Z24HP Subcooling Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
15Z36HP Subcooling Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
15Z48HP Subcooling Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
15Z60HP Subcooling Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property 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 in strict compliance with the
enclosed installation instructions and any applicable local, state,
and national codes including, but not limited to building, electrical,
and mechanical codes.
R-410A systems operate at higher pressures than R-22 systems.
Do not use R-22 service equipment or components on R-410A
equipment. Service equipment
R
P
CERTIFICATION APPLIES ONLY
WHEN THE COMPLETE
SYSTEM IS LISTED
WITH ARI.
This product was manufactured
LISTED
in a plant whose quality system
is certified/registered as being
in conformity with ISO 9001.
Must Be Rated
for R-410A.
035-20401-001 Rev. A (0904)
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Related Manuals for York YZE SERIES
Summary of Contents for York YZE SERIES
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Page 1: Table Of Contents
INSTALLATION MANUAL R-410A OUTDOOR SPLIT-SYSTEM CERTIFICATION APPLIES ONLY HEAT PUMP WHEN THE COMPLETE SYSTEM IS LISTED WITH ARI. MODELS: 15 SEER - YZE / HC5B / HL5B SERIES 2 TO 5 TONS This product was manufactured LISTED in a plant whose quality system is certified/registered as being in conformity with ISO 9001. -
Page 2: Unit Installation
035-20401-001 Rev. A (0904) SECTION III: UNIT INSTALLATION INSPECTION As soon as a unit is received, it should be inspected for possible dam- LOCATION age during transit. If damage is evident, the extent of the damage Before starting the installation, select and check the suitability of the should be noted on the carrier’s delivery receipt. -
Page 3: Tubing Hanger
035-20401-001 Rev. A (0904) GROUND INSTALLATION PIPING CONNECTIONS The unit may be installed at ground level on a solid base that will not shift or settle, causing strain on the refrigerant lines and possible leaks. Maintain the clearances shown in Figure 1 and install the unit in a level position. -
Page 4: Underground Installation
035-20401-001 Rev. A (0904) TO INDOOR COIL TO OUTDOOR UNIT LIQUID LINE INSULATED VAPOR LINE CONDUIT FIGURE 3: Underground Installation PRECAUTIONS DURING BRAZING OF LINES All outdoor unit and evaporator coil connections are copper-to-copper and should be brazed with a phosphorous-copper alloy material such as Silfos-5 or equivalent. -
Page 5: Installations Requiring Txv
035-20401-001 Rev. A (0904) If bulb installation is made on a vertical 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 Never attempt to repair any brazed connections while the system is a reservoir. -
Page 6: Cfm Selection Board
035-20401-001 Rev. A (0904) FIELD CONNECTIONS CONTROL WIRING VARIABLE Route low voltage wiring into bottom of control box as shown in SPEED HEAT PUMP THERMOSTAT AIR HANDLER CONTROL Figure 5. Make low voltage wiring connections inside the junction box per Figures 7 - 9. The complete connection diagram and schematic wiring label is BLU/YEL located on the inside surface of the unit service access panel. -
Page 7: System Charge
035-20401-001 Rev. A (0904) SECTION VI: EVACUATION It will be necessary to evacuate the system to 500 microns or less. If a leak is suspected, leak test with dry nitrogen to locate the leak. Repair Refrigerant charging should only be carried out by a qualified air the leak and test again. -
Page 8: Test Input Functionality
035-20401-001 Rev. A (0904) FIGURE 11: Demand Defrost Control Module SECTION VIII: SYSTEM OPERATION LOW VOLTAGE DETECTION The control monitors the transformer secondary (24 VAC) voltage and REQUIRED CONTROL SETUP provides low voltage protection for the heat pump and its components. IMPORTANT: The following steps must be taken at the time of In particular, the control prevents contactor chatter during low voltage installation to insure proper system operation. -
Page 9: Operational Mode Display
035-20401-001 Rev. A (0904) LED DIAGNOSTIC INDICATORS TABLE 3: Status Code Display The control includes two LED’s that display various types of diagnostic LED1 LED2 Description information. LED1 is red and LED2 is green. The location of the LED’s (Red) (Green) is shown in Figures 11 &... -
Page 10: Operational Fault Codes
035-20401-001 Rev. A (0904) TABLE 5: Operational Fault Codes TABLE 7: Wiring Related Fault Codes LED1 LED2 LED1 LED2 Description Description (Red) (Green) (Red) (Green) Operational Faults Wiring Related Faults Control Failure that still allows fault Compressor Contactor Miswire 4 if possible code output Y2 present without Y1 High-pressure switch fault... - Page 11 035-20401-001 Rev. A (0904) LOCKOUT MODES Wiring or Setting Related Lockouts The control will not operate the compressor when the following faults Soft Lockout occur. These faults can be reset using the same methods used to reset The control will cause a soft lockout during the following conditions. a soft lockout.
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Page 12: Defrost Initiate Curves
035-20401-001 Rev. A (0904) Defrost Curves The control will also initiate a defrost cycle when the TEST terminals are shorted. This feature allows an installer or service technician to start The control uses a set of defrost curve parameters that are selected a defrost cycle immediately as required. -
Page 13: Defrost Operation Curves
035-20401-001 Rev. A (0904) REGION C Defrost Terminated TERMINATE CURVE REGION E REGION D No call for defrost Time Defrost (6 hour) prevented Defrost prevented from starting INHIBIT CURVE REGION B REGION A No call for Defrost Call for Defrost Time Defrost (6 hour) allowed AMBIENT TEMPERATURE FIGURE 12: Defrost Operation Curves... - Page 14 035-20401-001 Rev. A (0904) Hot Heat Pump Enable (HOT HEAT PUMP) Settings Y2 OUT energized until the thermostat is satisfied even if the liquid line or outdoor ambient temperature falls below the curve (point within The Hot Heat Pump Enable (HOT HEAT PUMP) jumper input does not region A).
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Page 15: Hot Heat Pump Indoor Airflow Control
035-20401-001 Rev. A (0904) Forced Second Stage Feature Operation The liquid line temperature exceeds the switch point temperature. The outdoor ambient temperature exceeds the values correspond- The control will force second stage compressor operation when the liq- ing to each switch point setting as shown in Table 9. uid line temperature is below the switch point even if the thermostat is calling only for first stage. -
Page 16: Jumper Inputs
035-20401-001 Rev. A (0904) The control only reads the jumper inputs when the Y1, Y2, and W ther- The control will not operate the compressor in heating mode when the mostat inputs are de-energized. If a jumper position is changed while outdoor ambient temperature is below the selected LTCO. -
Page 17: Air Handler Auxiliary Heat Functionality
035-20401-001 Rev. A (0904) TABLE 10: Air Handler Auxiliary Heat Functionality CONTROL INPUTS Outdoor Ambient Temperature Y1 + Y2 Y1 + W OR Y1 + Y2 + W Heat Pump Operation (then + W1 OUT + W2 OUT Ambient above BP Heat Pump Operation W1 OUT + W2 OUT after pipe freeze protection timer expires) - Page 18 035-20401-001 Rev. A (0904) SWITCH POINT Auxiliary Heat Defrost Operation – Fossil Fuel Mode with Bonnet Sensor The control includes a switch point feature which determines the liquid temperatures at which the compressor will be forced to operate in sec- With a bonnet sensor present the control will energize W1 OUT and W2 ond-stage.
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Page 19: Instructing The Owner
035-20401-001 Rev. A (0904) SECTION IX: INSTRUCTING THE OWNER Low Discharge Line Temperature The control will begin a sixty-minute timer when either of the following Assist owner with processing warranty cards and/or online registration. conditions are met. Review Owners Guide and provide a copy to the owner and guidance on proper operation and maintenance. -
Page 20: 15Z24Hp Subcooling Charging Chart
035-20401-001 Rev. A (0904) TABLE 13: 15Z24HP Subcooling Charging Chart TABLE 15: 15Z48HP Subcooling Charging Chart COOLING MODE COOLING MODE Indoor Wet Bulb (°F) Indoor Wet Bulb (°F) Outdoor Outdoor Ambient Ambient DB (°F) Liquid Pressure (Subcooling) DB (°F) Liquid Pressure (Subcooling) 228 (8) 231 (8) 235 (9) -
Page 21: Wiring Diagram
035-20401-001 Rev. A (0904) SECTION X: WIRING DIAGRAM FIGURE 15: Wiring Diagram Unitary Products Group... - Page 22 035-20401-001 Rev. A (0904) NOTES Unitary Products Group...
- Page 23 035-20401-001 Rev. A (0904) Unitary Products Group...
- Page 24 Subject to change without notice. Printed in U.S.A. 035-20401-001 Rev. A (0904) Copyright © by York International Corp. 2004. All rights reserved. Supersedes: Nothing Unitary 5005 Norman Product York Group Drive 73069...
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