50TCQD
Single Package Rooftop,
Heat Pump Units
With Field --- Installed Electric Heat
Sizes 17 & 24 with PuronR (R --- 410A) Refrigerant
Submittal Data
—
—
—
—
PERFORMANCE DATA
CERTIFIED DIMENSION PRINTS
CERTIFIED ROOF CURB
DIMENSION PRINTS
SERVICE OPTION DIMENSION
PRINTS
Copyright 2012 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231
Printed in U.S.A.
Edition Date: 02/12
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Catalog No: 50TCQ---07SB
Replaces: 50TCQ--- 05SB
Job Data:
Buyer:
Unit Number:
Unit Designation:
Performance Data Certified By:
Location:
Buyer P.O.#:
Carrier:
Model Number:
DESCRIPTION
50TCQD
Certified to ISO 9001
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.
50TCQD units are one-- piece, two-- stage high-- efficiency
heat pump units, with a low profile, prewired, tested and
charged at the factory. These 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 are also available.
STANDARD FEATURES
Base Unit
S Puron (R-- 410A) HFC refrigerant
S EER’s up to 10.8
S IEER’s:
— up to 11.5 with single speed indoor fan motor
— up to 12.0 with 2--speed/VFD indoor fan motor
S COP’s up to 3.3
S ASHRAE 90.1 energy compliant
S Rated in accordance with AHRI Standard 340/360
S Designed in accordance with Underwriters’
Laboratories Standard 1995
S Listed by ETL
S Two-- stage cooling capacity control on all models
S Non-- corrosive composite sloping design; side or center
drain condensate pan. Meets ASHRAE Standard 62
S Cooling operating range from 30_F up to 115_F
(-- 1_C up to 46_C).
S Dedicated vertical and horizontal airflow models
available, ordered as factory option. No special kits
required
S Two-- inch disposable return air filters
S Thru-- the-- bottom power entry capability
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 State--of--the--art defrost control board, easily configured
for defrost cycles of 30, 60, 90, or 120 minutes.
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
and fork truck slots.
Cabinet
S Access panels with easy grip handles
S Innovative, easy starting, no strip screw features on unit
access panels.
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
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.
2
Refrigerant System (cont.)
Standard Parts Warranty
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.
S 5-- year electric heater (field-- installed)
S 5-- year compressor
S 1-- year parts
Unit Operating Weight
lb
Cooling
Curb Weight
50TCQD
PERFORMANCE DATA
lb
Heating
Net Total Capacity
Net Sensible Capacity
Compressor Power Input
at Outdoor Air Temperature
Indoor Entering Air db:
_F wb
Airflow
CFM External Static Pressure
Btuh
Btuh
kW
_F
_F
in.wg
Power Input to Unit
Integrated Capacity
Indoor Operating Air Temperature
Outdoor Air Temperature
Rating at 70% R.H. Outdoors
Electrical Capacity Required
kw
Btuh
_F db
_F (Winter Design)
kW Heater Selected
Heat/Cool Ratio
Btuh
ELECTRICAL DATA
Power Supply to Unit
Minimum Circuit Amps
Volts
Phase
Maximum Overcurrent Protection (Fuse Only)
SUBMITTAL DATA
Job Name
Architect
Engineer
Contractor
Unit Designation
3
Hz
50TCQD
OPTIONS AND ACCESSORIES
FACTORY--INSTALLED OPTIONS (FIOPs)
FIELD INSTALLED ACCESSORIES
j Staged Air Volume (SAV) system utilizes a Variable
Frequency Drive (VFD) to automatically adjust the indoor
fan motor for 2 speed indoor fan motor control. Conforms
to ASHRAE 90.1 2010 Standard – section 6.4.3.10.b.
j Open protocol RTU Direct Digital Control (DDC)
LON, MODBUS, BACNET and Johnson N2 protocols.
j PremierLink CCN control
j Dedicated vertical discharge and return air units
j Dedicated horizontal discharge and return air units
j Through the base connectors electric conduit
j Standard Economizer with dry bulb sensing and
barometric relief
j Standard Economizer with enthalpy sensing and
barometric relief
j Ultra Low Leak economizer with maximum leakage rate
equal or less than 4.0 cfm/sq. ft. at 1.0 in. w.g.
Available on models with Staged Air Volume (SAV)
2 speed indoor fan motor only.
j Two-- position motorized outdoor air damper
j Non-- fused disconnect switch (80 A Max)
j Powered 115-- volt convenience outlet
j Non-- powered 115-- volt convenience outlet
j High static indoor fan motor and drive
j Return Air smoke detector
j Supply 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
j Cu/Cu condenser coil
j Cu/Cu condenser coil and evaporator coil
j Condenser hail guard — louvered style
j CO2 sensor
j EconoMi$ertX – Ultra Low Leak electromechanical,
gear driven with Honeywell W7220 digital controller.
Used with 2 speed Staged Air Volume (SAV) systems
only.
j Display Kit for Variable Frequency Drive (VFD),
Staged Air Volume System. Allows additional set up
and diagnostics of the unit VFD controller. Can be unit
mounted or used with any other VFD model as a
reusable device.
j EconoMi$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 Two-- position motorized outdoor air damper
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 Thermostats and Sensors
j Phase Monitor
j Barometric Relief hood (for horizontal economizers)
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.
Economizer Sensors
j Single Dry bulb control
j Differential Dry bulb control
j Single enthalpy control
j Differential enthalpy control
j CO2 - wall mounted
j CO2 - duct mounted
4
5
CERTIFIED DIMENSION 50TCQD17
50TCQD
C10594
6
CERTIFIED DIMENSION 50TCQD17
50TCQD
C10595
7
CERTIFIED DIMENSION 50TCQD24
50TCQD
C12047
8
CERTIFIED DIMENSION 50TCQD24
50TCQD
C12048
50TCQD
ROOF CURB DETAILS -- SIZE 17 UNITS
C10139
9
50TCQD
ROOF CURB DETAILS -- SIZE 24 UNITS
C10140
10