
50HTQ – AutoZoneRModel
Single Package Ro oft op,
High---Efficiency Heat Pump Units
With Field---Installed Electric Heat
Size 07 with Puronr (R---410A) Refrigerant
Submittal Data
— PERFORMANCE DATA
— CERTIFIED DIMENSION PRINTS
— CERTIFIED ROOF CURB
DIMENSION PRINTS
— SERVICE OPTION DIMENSION
PRINTS
Copyright 2010 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 07/10
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Catalog No:50HTQ--- 01SB
Replaces: NEW

Job Data: Location:
Buyer: Buyer P.O.#: Carrier:
Unit Number: Model Number:
Unit Designation:
Performance Data Certified By:
50HTQ units are one--piece, high--efficiency heat pump
®
Use of the AHRI Certified
TM Mark indicates a
manufacturer’s
participation in the
program For verification
of certification for individual
products, go to
www.ahridirectory.org.
units, with a low profile, prewired, tested and charged at the
factory. These units have field convertible supply and return
openings and are intended for installation on a roof curb
accessory (ordered separately), or for slab mounting (for
horizontal duct connections). Units are designed to accept
field--installed electric heaters. Units may be ordered with
various factory--installed options. Field--installed accessories
50HTQ
are also available.
DESCRIPTION
Certified to ISO
9001:2008
STANDARD FEATURES
Base Unit
S Puron (R--410A) HFC refrigerant
S AHRI certified
S EER efficiency level: 11.1
S Rated in accordance with AHRI Standards 340/360
S Designed in accordance with Underwriters’
Laboratories Std 1995 and listed by UL and UL, Canada
S Non--corrosive composite sloping design; side or center
drain condensate pan. Meets ASHRAE Standard 62
S Cooling operating range from 25_Fupto115_F
(--4_Cupto46_C). Field installed accessory extends
the minimum down to --20_F(--29_C).
S Convertible from vertical to horizontal airflow for slab
mounting
S Return air filters are two--inch metal frames with
pleated media
S Single point electric connections on field--installed
electric heat units
S 24--volt control circuit protected with resettable circuit
breaker and 75--VA transformer
S Belt drive, constant torque, permanently lubricated
evaporator--fan motor on all size units.
S Totally enclosed condenser motors with permanently
lubricated bearings
S Centralized Terminal Board for component and unit
wiring connections.
S Loss of Charge, High--Pressure, and Freeze Protection
switches
S Full perimeter base rail with built--in rigging adapters
andforktruckslots.
S Surveyor controller and associated sensors
S Power and control wiring through the base Meyer hubs
and compressor relay
Cabinet
S Access panels with easy grip handles and replaceable
NO--STRIP screw collar
S Pre--painted exterior panels and primer--coated interior
panels tested to 500 hours salt spray protection
S Fully insulated cabinet
S Tool--less filter access door
S Hinged panel access for the control panel and
evaporator blower motor.
Refrigerant System
S Acutrolt refrigerant metering system
S Liquid line filter drier
S Scroll compressors with internal line--break overload
protection
S Indoor and outdoor coils constructed of aluminum fins
mechanically bonded to seamless copper tubes.
S Removable gauge line plugs for reading refrigerant
pressure with unit panels in place
S Four--way reversing valve operation
S Suction Line Accumulator standard -- prevents
excessive liquid flood back of refrigerant to the
compressor even during the start of the defrost cycle.
Standard Warranty
S 5--year electric heater (field--installed)
S 5--year compressor
S 1--year parts
2

PERFORMANCE DATA
Unit Operating Weight lb
Cooling
Net Total Capacity Btuh
Net Sensible Capacity Btuh
Compressor Power Input kW
at Outdoor Air Temperature _F
Indoor Entering Air db: _Fwb _F
CFM External Static Pressure in wg
SEER/EER
Curb Weight lb
Heating
Power Input to Unit kw
Integrated Capacity Btuh
Indoor Operating Air Temperature _Fdb
Outdoor Air Temperature _F (Winter Design)
Rating at 70% R.H. Outdoors kW Heater Selected
Heat/Cool Ratio
Electrical Capacity Required Btuh
COP/HSPF High Low
ELECTRICAL DATA
Power Supply to Unit Volts Phase Hz
Minimum Circuit Amps Maximum Overcurrent Protection (Fuse Only)
50HTQ
Job Name
Architect
Engineer
Contractor
Unit Designation
SUBMITTAL DATA
3

OPTIONS AND ACCESSORIES
FACTORY--INSTALLED OPTIONS (FIOPs)
j EconoMi$ert IV with controls and barometric relief
(vertical only)
j EconoMi$er2 with 4--20 mA actuator and barometric
relief only (for PremierLinkt or 3
rd
party EMS system
control)
j Non--fused disconnect switch (80 A Max)
j High static indoor fan motor and drive
j Return Air smoke detector
j Smoke detectors — return and supply air
j Pre--coated Al/Cu condenser coil
j E--coated Al/Cu condenser coil
j E--coated Al/Cu condenser and evaporator coil
50HTQ
j Cu/Cu condenser coil
j Cu/Cu condenser coil and evaporator coil
j Condenser hail guard — louvered style
OPTIONAL WARRANTIES
j Complete Unit Parts only up to 5 years
j Complete Unit Parts and Labor up to 5 years
Many other optional warranties are available.
See the Commercial Start--Up and Optional Extended
Warranty Price price pages for further information.
FIELD INSTALLED ACCESSORIES
j EconoMi$er IV with controls and barometric relief
— vertical or horizontal
j EconoMi$er2 with 4--20 mA actuator, barometric
relief, and no microprocessor — vertical or horizontal
j Power Exhaust — vertical or horizontal
j PremierLink CCN controller
j Electric heat
j Single point kit
j Manual outdoor air damper 25%
j Manual outdoor air damper 50%
j Roofcurb — 14 inch (356mm) tall
j Roofcurb — 24 inch (610mm) tall
j Thru--the--bottom utility connection kit
j Thru--the--curb utility connection kit
j Time Guard II compressor anti--cycle control
j Outdoor coil hail guard — louvered style
j Low ambient head pressure controller, down to --20_F
(--29_C)
j Programmable setback thermostat
j Electrical/Mechanical thermostat and subbase
j Indoor Fan/Filter status indicator
j Phase Monitor
j Head Pressure control
Economizer Sensors
j Single Dry bulb control
j Differential Dry bulb control
j Single enthalpy control
j Differential enthalpy control
j CO
j CO
-- wall mounted
2
-- duct mounted
2
4

C10711
50HTQ
CERTIFIED DIMENSION 50HTQ*07
5

50HTQ
C10712
CERTIFIED DIMENSION 50HTQ*07
6