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268723-BIM-C-0908

2

Johnson Controls Unitary Products

Due to system pressure, moving parts, and electrical 
components, installation and servicing of air conditioning 
equipment can be hazardous. Only qualified, trained service 
personnel should install, repair, or service this equipment. 
Untrained personnel can perform basic maintenance functions 
of cleaning coils and filters and replacing filters.

Observe all precautions in the literature, labels, and tags 
accompanying the equipment whenever working on air 
conditioning equipment. Be sure to follow all other applicable 
safety precautions and codes including.

Wear safety glasses and work gloves. Use quenching cloth and 
have a fire extinguisher available during brazing operations.

Inspection

As soon as a unit is received, it should be inspected for possible 
damage during transit. If damage is evident, the extent of the 
damage should be noted on the carrier’s freight bill. A separate 
request for inspection by the carrier’s agent should be made in 
writing.

Reference

Additional information is available in the following reference forms:

• Technical Guide - BUZ024-060, 279853
• General Installation - BUZ024-060, 268723
• Electric Heat Accessory - 035-16605-003-E-0705

Renewal Parts

Contact your local UPG

 

parts distribution center for authorized 

replacement parts.

Nomenclature

This product must be installed in strict compliance with 
the installation instructions and any applicable local, 
state and national codes including, but not limited to 
building, electrical, and mechanical codes.

Before performing service or maintenance operations on 
unit, turn off main power switch to unit. Electrical shock 
could cause personal injury. Improper installation, 
adjustment, alteration, service or maintenance can 
cause injury or property damage. Refer to this manual. 
For assistance or additional information consult a 
qualified installer or service agency.

This system uses R-410A Refrigerant which operates at 
higher pressures than R-22. No other refrigerant may be 
used in this system. Gage sets, hoses, refrigerant 
containers and recovery systems must be designed to 
handle R-410A. If you are unsure, consult the equipment 
manufacturer. Failure to use R-410A compatible servicing 
equipment may result in property damage or injury.

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.

Improper installation may create a condition where the 
operation of the product could cause personal injury or 
property damage.

This system uses R-410A Refrigerant which operates at 
higher pressures than R-22. No other refrigerant may be 
used in this system.

B  B

024  A 

UZ  -F 

Product Category 

B = Single Package Heat Pumps 

(Air Cooled) 

Product Generation 

A = New or Current Design 
B = Second Generation

Factory Installed Gas Heat 

A = No Electric Heat Installed 

Product Identifier

UZ = R-410A, Heat Pump, 13 SEER

024 = 24,000 BTUH 
030 = 30,000 BTUH 
036 = 36,000 BTUH 

Voltage Code 

F = 208/230-1-60 
T = 208/230-3-60 
W = 460-3-60 

042 = 42,000 BTUH 
048 = 48,000 BTUH 
060 = 60,000 BTUH 

Nominal Cooling Capacity (MBH) 

Summary of Contents for BUZ024

Page 1: ...heat pumps designed for outdoor installation on a roof top or a slab Field installed electric heater accessories are available to provide supplemental electric heat combined with electric cooling and...

Page 2: ...mited to building electrical and mechanical codes Before performing service or maintenance operations on unit turn off main power switch to unit Electrical shock could cause personal injury Improper i...

Page 3: ...denser Fan Motor Highly Efficient Enhanced Copper Tube Aluminum Fin Indoor Coil Highly Efficient Enhanced Copper Tube Aluminum Fin Outdoor Coil Decorative Protective Coil Guard 5 Speed Direct Drive Bl...

Page 4: ...the place of installation Rig the unit by attaching chain or cable slings to the lifting holes provided in the base rails Spreader bars whose length exceeds the largest dimension across the unit MUST...

Page 5: ...SIDE RETURN AIR OPENING SIDE SUPPLY AIR OPENING LOW VOLTAGE CONN 7 8 DIA KNOCKOUT HIGH VOLTAGE CONN 1 31 32 DIA KNOCKOUT HIGH VOLTAGE CONN 7 8 DIA KNOCKOUT A 3 3 4 1 1 2 2 1 2 2 3 8 4 1 2 49 1 8 28 1...

Page 6: ...T 26 3 4 CONDENSATE DRAIN 3 4 NPTF LOW VOLTAGE CONN 7 8 DIA KNOCKOUT HIGH VOLTAGE CONN 1 31 32 x 7 8 KNOCKOUT 22 1 2 43 1 2 40 1 2 4 14 1 2 28 3 8 14 1 2 BACK 3 3 8 SIDE RETURN AIR OPENING 14 1 2 3 1...

Page 7: ...bottom supply and return air duct openings Roof Curb On applications when a roof curb is used the unit must be positioned on the curb so the front of the unit is tight against the curb Filters Single...

Page 8: ...and or local ordinances The unit must be electrically grounded in accordance with local codes or in their absence with the N E C C E C Voltage tolerances which must be maintained at the compressor te...

Page 9: ...led 24 volt wire Only required on units with supplemental electric heat PROGRAMMABLE THERMOSTAT ONLY THERMOSTAT UNIT CONTROL BOARD TERMINAL STRIP 24 VOLT TRANSFORMER NOTE HEAT ANTICIPATOR SHOULD BE SE...

Page 10: ...5 2 54 2 62 5 94 2 104 6 100 110 208 230 3 60 11 5 77 18 1 2 6 0 None 21 6 30 2NH04501025 7 5 10 1 20 8 24 1 47 6 51 6 50 60 2NH04501525 11 3 15 1 31 3 36 1 60 7 66 7 70 70 460 3 60 5 1 35 8 0 8 3 0 N...

Page 11: ...R410a R410a R410a R410a R410a R410a Refrigerant charge lb oz 6 0 7 4 9 6 12 0 10 10 11 8 ARI HEATING PERFORMANCE 47 F Capacity Rating Mbh 22 2 27 8 32 8 40 0 45 5 56 0 System Power Kw COP 3 4 3 3 3 0...

Page 12: ...Direct Direct Direct Direct Direct Direct No speeds 1 1 1 1 1 1 Number of motors 1 1 1 1 1 1 Motor HP each 1 4 1 4 1 4 1 4 1 4 1 2 RPM 850 850 850 850 850 1100 Nominal total CFM 1800 1800 2400 2400 30...

Page 13: ...030 1922 746 1069 1829 746 1104 1712 728 1134 1528 659 1146 High 5 2214 968 1104 2089 918 1121 1949 859 1136 1785 787 1148 1576 689 1154 Table 8 Bottom Duct Application Size Tons Blower Speed Setting...

Page 14: ...0 700 0 01 0 00 0 02 0 03 800 0 01 0 01 0 02 0 03 900 0 01 0 01 0 02 0 04 1000 0 02 0 01 0 02 0 04 1100 0 03 0 01 0 03 0 05 1200 0 04 0 02 0 03 0 06 1300 0 04 0 03 0 03 0 07 1400 0 04 0 04 0 03 0 08...

Page 15: ...or cooling has been satisfied the 24 volt Y signal is removed and the M1 contactor is de energized When the fan switch on the thermostat is in the ON position the indoor blower motor continues to run...

Page 16: ...bit feature prohibits defrost if the coil temperature is above 40 F A forced defrost feature puts the system into a defrost period every 6 hours and 4 minutes to recirculate lubricants unless the coil...

Page 17: ...VALVE ENERGIZED SYSTEM OPERATES IN COOLING COMPRESSOR AND OUTDOOR FAN INSTANT OFF FAN 60 SEC DELAY OFF FAN INSTANT ON OFF COMPRESSOR AND OUTDOOR FAN INSTANT ON AFTER ANTI SHORT CYCLE DELAY SYSTEM OPE...

Page 18: ...OPERATES IN HEATING HEATER BANK 1 2 3 ELEC HEAT INSTANT ON HEATER BANK 4 5 6 ELEC HEAT 10 SEC DELAY ON OFF COMPRESSOR AND OUTDOOR FAN INSTANT OFF HEATER BANK 4 5 6 ELEC HEAT INSTANT OFF HEATER BANK 1...

Page 19: ...268723 BIM C 0908 Johnson Controls Unitary Products 19 Typical Wiring Diagrams Typical BUZ024 060 Heat Pump 208 230 1 60 volt Wiring Diagram...

Page 20: ...268723 BIM C 0908 20 Johnson Controls Unitary Products Typical BUZ030 060 Heat Pump 230 3 60 volt Wiring Diagram...

Page 21: ...268723 BIM C 0908 Johnson Controls Unitary Products 21 Typical BUZ030 060 Heat Pump 460 3 60 volt Wiring Diagram...

Page 22: ...only Manifold sets must be at least 700 psig high side and 180 psig low side with 550 psig retard All hoses must have a service pressure rating of 800 psig Leak detectors must be designed to detect H...

Page 23: ...268723 BIM C 0908 Johnson Controls Unitary Products 23...

Page 24: ...change without notice Printed in U S A 268723 BIM C 0908 Copyright 2008 by Johnson Controls Inc All rights reserved Supersedes 268723 BIM B 0807 Johnson Controls Unitary Products 5005 York Drive Norma...

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