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Litho U.S.A.
E2015
WARNING
Improper installation, adjustment, alteration, ser
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser
vice must be performed by a licensed professional
HVAC installer or equivalent or service agency.
CAUTION
Danger of sharp metallic edges. Can cause injury.
Take care and wear protective clothing when
servicing unit to avoid accidental contact with
sharp edges.
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
Table Of Contents
Dimensions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List
. . . . . . . . . . . . . . . . . . . .
General
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Support
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct Connection
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ZH 036, 048, 060 PARTS ARRANGEMENT
CONTROL
OUTDOOR
COIL FAN
COMPRESSOR
OUTDOOR
COIL
Page 2
Page 3
Page 3
Page 3
Page 4
Page 4
EVAPORATOR
COIL
PANEL
SIDE POWER
ENTRY
INSTALLATION
INSTRUCTIONS
ZHA036
ZHB036
ZHA048
ZHB048
ZHA060
ZHB060
HEAT PUMP PACKAGED UNITS
507111-02
2/2015
Supersedes 507111-01
Rigging Unit For Lifting
Horizontal Air Discharge
Condensate Drains
. . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections
Blower Operation and Adjustments
Start-Up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defrost Control Board
Service
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BLOWER
MOTOR
UNIT FUSE
BOTTOM POWER
ENTRY
(3 TON)
(3 TON)
(4 TON)
(4 TON)
(5 TON)
(5 TON)
. . . . . . . . . . . . . . . . . . . . . . .
Page 4
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Page 5
Page 5
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Page 6
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Page 7
Page 16
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Page 22
Page 23
BLOWER
HOUSING
ELECTRIC HEAT
(OPTIONAL)
TB2 UNIT
TERMINAL
STRIP
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Table of Contents
Related Manuals for Lennox ZHA036
Summary of Contents for Lennox ZHA036
- Page 1 INSTALLATION Litho U.S.A. INSTRUCTIONS E2015 WARNING ZHA036 (3 TON) Improper installation, adjustment, alteration, ser ZHB036 (3 TON) vice or maintenance can cause property damage, personal injury or loss of life. Installation and ser ZHA048 (4 TON) vice must be performed by a licensed professional HVAC installer or equivalent or service agency.
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Page 2: End View
ZH 036, 048, 060, DIMENSIONS in (mm) BOTTOM POWER ENTRY Holes required for Optional Bottom Power Entry Kit Threaded Hole Diameter Wire Conduit Fittings Required in (Provided in Kit) Unit Base (Max.) ACC. 7/8 (23) 7/8 (23) POWER 1-1/8 (29) 25-5/8 5-1/8 (651) -
Page 3: Unit Clearances
Shipping and Packing List NOTICE Package 1 of 1 contains: Roof Damage! 1 - Assembled unit This system contains both refrigerant and oil. Some rubber roofing material may absorb oil, Check unit for shipping damage. Receiving party should causing the rubber to swell. Bubbles in the rubber contact last carrier immediately if shipping damage is roofing material can cause leaks. - Page 4 NOTE-When installing unit on a combustible surface for WARNING downflow discharge applications, the Z1CURB roof mounting frame is required. Electric shock hazard and danger of B - Horizontal Discharge Applications explosion. Can cause injury, death or 1- Specified installation clearances must be maintained product or property damage.
- Page 5 4- Install return air duct on the intake air side of the Horizontal Air Discharge horizontal economizer. See figure 5. Unit is shipped with panels covering the horizontal supply 5- Horizontal economizer and return air duct must be and return air openings. See figure 3. field-supported.
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Page 6: Electrical Connections
IMPORTANT - Unless field thermostat wires are rated Electrical Connections for maximum unit voltage, they must be routed away POWER SUPPLY from line voltage wiring. Do not apply power or close disconnect switch until B - Control Wiring installation is complete. Refer to start-up directions. Refer 1- Route thermostat cable or wires from subbase to closely to unit wiring diagram. - Page 7 Blower performance data is based on static pressure Blower Operation and Adjustments readings taken in locations shown in figure 9. Units are equipped with belt drive blowers; available Note - Static pressure readings can vary if not taken drive varies by model. where shown.
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Page 8: Blower Assembly
BLOWER ASSEMBLY TO INCREASE BELT TENSION 1-Loosen four bolts securing motor base to mounting frame. 2-Slide the motor downward to tighten the belt. 3-Tighten four bolts on motor base. LOOSEN FOUR BOLTS AND SLIDE BLOWER MOTOR DOWNWARD TO TIGHTEN BELT SIDE VIEW MOTOR ALLEN... - Page 9 BLOWER DATA - BELT DRIVE - ZHA036 BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE. FOR ALL UNITS ADD: 1 - Any factory installed options air resistance (heat section, economizer, wet coil, etc.).
- Page 10 BLOWER DATA - BELT DRIVE - ZHA048 BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE. FOR ALL UNITS ADD: 1 - Any factory installed options air resistance (heat section, economizer, wet coil, etc.). 2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
- Page 11 BLOWER DATA - BELT DRIVE - ZHA060 BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE. FOR ALL UNITS ADD: 1 - Any factory installed options air resistance (heat section, economizer, wet coil, etc.). 2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
- Page 12 BLOWER DATA - BELT DRIVE - ZHB036 BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE. FOR ALL UNITS ADD: 1 - Any factory installed options air resistance (heat section, economizer, wet coil, etc.). 2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
- Page 13 BLOWER DATA - BELT DRIVE - ZHB048 BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE. FOR ALL UNITS ADD: 1 - Any factory installed options air resistance (heat section, economizer, wet coil, etc.). 2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
- Page 14 BLOWER DATA - BELT DRIVE - ZHB060 BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE. FOR ALL UNITS ADD: 1 - Any factory installed options air resistance (heat section, economizer, wet coil, etc.). 2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).
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Page 15: Blower Data
0.25 1450 0.30 1350 0.35 1240 OPTIONS / ACCESSORIES AIR RESISTANCE - in. w.g. Wet Indoor Coil Economizer Air Volume Electric Heat ZHA036, ZHA048 ZHA060, ZHB036 ZHB048, ZHB060 Downflow Horizontal 0.01 0.01 - - - 0.05 0.03 0.04 1000 0.02 0.01... - Page 16 MINIMUM AIRFLOW - UNITS WITH ELECTRIC HEAT reversing valve solenoid and compressor 1. CFM - Downflow and Horizontal Units With Optional Economizer - ZHA036-060, ZHB036-048 ZHB060 The optional economizer will start on a first stage (Y1) 1750 cooling demand when outdoor air is suitable. An...
- Page 17 If the system requires additional refrigerant, reclaim the charge, evacuate the system, and add 7- Example ZHA036: At 95°F outdoor ambient and a required nameplate charge. measured suction pressure of 130psig, the target liquid temperature is 105.5°F.
- Page 18 TABLE 5 ZHA048 NORMAL OPERATING PRESSURES Outdoor Coil Entering Air Temperature 65 F 75 F 85 F 95 F 105 F 115 F Suct Disc Suct Disc Suct Disc Suct Disc Suct Disc Suct Disc (psig) (psig) (psig) (psig) (psig) (psig) (psig) (psig)
- Page 19 ZHA 036 CHARGING CURVE Outdoor Temperature (°F) 115° 105° 95° 85° 75° 65° Suction Pressure (psig) ZHA048 CHARGING CURVE Outdoor Temperature (°F) 115° 105° 95° 85° 75° 65° Suction Pressure (psig) Page 19 507111-02 2/2015...
- Page 20 ZHA060 CHARGING CURVE Outdoor Temperature (°F) 115° 105° 95° 85° 75° 65° Suction Pressure (psig) ZHB 036 CHARGING CURVE Outdoor Temperature (°F) 115° 105° 95° 85° 75° 65° Suction Pressure (psig) Page 20 ZH 036, 048, 060...
- Page 21 ZHB048 CHARGING CURVE Outdoor Temperature (°F) 115° 105° 95° 85° 75° 65° Suction Pressure (psig) ZHB060 CHARGING CURVE Outdoor Temperature (°F) 115° 105° 95° 85° 75° 65° Suction Pressure (psig) Page 21 507111-02 2/2015...
- Page 22 The defrost interval can be adjusted to 30, 60, or 90 Defrost Control Board minutes. The defrost timing jumper is factory-installed to The defrost thermostat and the defrost control work provide a 90-minute defrost interval. If the timing selector together to ensure that the heat pump outdoor coil does jumper is not in place, the control defaults to a 90-minute not ice excessively during the heating mode.
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Page 23: Back Of Unit
The unit should be inspected once a year by a qualified Unit Filter Size - inches (mm) service technician. ZHA036, 048 14 X 20 X 2 (352 X 508 X 51) CAUTION ZHA060, ZHB036 16 X 20 X 2 (406 X 508 X 51) - Page 24 D - Supply Air Blower Wheel F - Outdoor Coil Annually inspect supply air blower wheel for accumulated Clean outdoor coil annually with detergent or commercial dirt or dust. Turn off power before attempting to remove coil cleaner and inspect monthly during the cooling access panel or to clean blower wheel.