Page 1: Table Of Contents
50HCQA Single Package Rooftop Heat Pump with Puronr (R---410A) Refrigerant Sizes 04 --- 06 Installation Instructions NOTE: Read the entire instruction manual before starting the installation TABLE OF CONTENTS SAFETY CONSIDERATIONS ....
Page 2: Safety Considerations
Failure to follow this caution may result in personal injury. Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing, safety glasses and gloves when handling parts and servicing heat pump units. WARNING WARNING WARNING CAUTION...
Page 3 Vertical Connections / Economizer Horizontal Connections / Economizer C10230 Fig. 1 - - Unit Dimensional Drawing – 04 — 06 Size Units...
Page 4: Installation
Fig. 1 - - Unit Dimensional Drawing – 04 — 06 Size Unit (cont.) INSTALLATION Jobsite Survey Complete the following checks before installation. 1. Consult local building codes and the NEC (National Electrical Code) ANSI/NFPA 70 for special installa- tion requirements. 2.
Page 5: Roof Mount
Roof Mount — Check building codes weight requirements. Unit operating weight is shown in Table 1. Step 2 — Plan for Sequence of Unit Installation The support method used for this unit will dictate different sequences for the steps of unit installation. For example, on curb- - mounted units, some accessories must be installed on the unit before the unit is placed on the curb.
Page 6 ROOFCURB UNIT SIZE ACCESSORY 1’ - 2” CRRFCURB001A02 [356] 50HCQA04-06 2’ - 0” CRRFCURB002A02 [610] Fig. 3 - - Roof Curb Details C10232...
Page 7: Step 5 - Field Fabricate Ductwork
MAXIMUM ALLOWABLE DIFFERENCE IN. (MM) 0.5” (13) Fig. 4 - - Unit Leveling Tolerances Step 5 — Field Fabricate Ductwork Cabinet return-air static pressure (a negative condition) shall not exceed 0.35 in. wg (87 Pa) with economizer or 0.45 in. wg (112 Pa) without economizer. For vertical ducted applications, secure all ducts to roof curb and building structure.
Page 8: Positioning On Curb
MAX WEIGHT UNIT 50HCQA04 50HCQA05 50HCQA06 NOTES: 1. Dimensions in ( ) are in millimeters. 2. Hook rigging shackles through holes in base rail, as shown in detail “A.” Holes in base rails are centered around the unit center of gravity. Use wooden top to prevent rigging straps from damaging unit. Positioning on Curb —...
Page 9: Step 8 - Install Outside Air Hood
Step 8 — Install Outside Air Hood Economizer Hood Removal and Setup - - Factory Option — 1. The hood is shipped in knock- - down form and located in the return air compartment. It is attached to the economizer using two plastic tie- - wraps. 2.
Page 10: Economizer Hood And Two- - Position Hood
Economizer Hood and Two- - Position Hood — NOTE: If the power exhaust accessory is to be installed on the unit, the hood shipped with the unit will not be used and must be discarded. Save the aluminum filter for use in the power exhaust hood assembly.
Page 11: Step 10 - Make Electrical Connections
MINIMUM PITCH 1” (25mm) PER BASE RAIL 10’ (3m) OF LINE 2˝ (51) MIN OPEN VENT TO ROOF DRAIN DRAIN PLUG NOTE: Trap should be deep enough to offset maximum unit static difference. A 4” (102) trap is recommended Fig. 14 - - Condensate Drain Piping Details All units must have an external trap for condensate drainage.
Page 12: Units With Factory- - Installed Disconnect
Units with Factory- - Installed Disconnect — The factory- - installed option disconnect switch is located in a weatherproof enclosure located under the main control box. The manual switch handle is accessible through an opening in the access panel. Discard the factory test leads (see Fig.
Page 13: Factory- - Option Thru- - Base Connections
Mount the weatherproof cover to the backing plate as shown in Fig. 18. Remove two slot fillers in the bottom of the cover to permit service tool cords to exit the cover. Check for full closing and latching. COVER – WHILE-IN-USE WEATHERPROOF Fig.
Page 14: Units Without Thru- - Base Connections
(field- - supplied) or a PremierLink controller (available as factory- - installed option or as field- - installed accessory, for use on a Carrier Comfort Network or as a stand alone control) or the RTU- - MP Controller for Building...
Page 15: Electric Heaters
RACEWAY HOLE IN END PANEL (HIDDEN) Fig. 22 - - Field Control Wiring Raceway Electric Heaters 50HCQ units may be equipped with field- - installed accessory electric heaters. The heaters are modular in design, with heater frames holding open coil resistance wires strung through ceramic insulators, line- - break limit switches and a control contactor.
Page 16: Single Point Boxes And Supplementary Fuses
Fig. 25 - - Typical Module Installation Single Point Boxes and Supplementary Fuse When the unit MOCP device value exceeds 60- - A, unit- - mounted supplementary fuses are required for each heater circuit. These fuses are included in accessory Single Point Boxes, with power distribution and fuse blocks.
Page 17: Premierlinkt (Factory Option)
(SAT) sensor. The outdoor air temperature (OAT) sensor is included in the FIOP/accessory EconoMi$ert2 package. The PremierLink controller requires the use of a Carrier electronic thermostat or a CCN connection for time broadcast to initiate its internal timeclock. This is necessary for broadcast of time of day functions (occupied/unoccupied).
Page 18 C10227 Fig. 30 - - Typical PremierLink Wiring Schematic...
Page 19: Outdoor Air Temperature (Oat) Sensor
Space Temperature (SPT) Sensors — The PremierLink controller is factory- - shipped configured for Space Sensor Mode. A Carrier T- - 55 or T- - 56 space sensor must be used. T- - 55 space temperature sensor provides a signal of space temperature to the PremierLink control. T- - 56...
Page 20 SPACE THERMOSTAT OUTDOOR AIR APPLICATION TEMPERATURE SENSOR Differential Dry Bulb Temperature with Included --- PremierLink CRTEMPSN001A00 (PremierLink requires 4---20 mA Actuator) Single Enthalpy with PremierLink Included --- (PremierLink requires Not Used 4---20mA Actuator) Differential Enthalpy with PremierLink Included --- (PremierLink requires Not Used 4---20mA Actuator) NOTES:...
Page 21 IAQ ---COM/OAQ ---COM/RH ---COM OAQ ---SEN/RH ---SEN CCN Gnd (WHT) AUX OUT(Power Exhaust) LEGEND: --- Space Temperature Sensor --- Space Temperature Sensor --- Carrier Comfort Network (communication bus) CMPSAFE --- Compressor Safety FILTER --- Dirty Filter Switch TB1 TERMINAL IAQ ---COM/OAQ ---COM/RH ---COM...
Page 22: Configure The Unit For Thermostat Mode
If the 50HCQ unit has an economizer system and free- - cooling operation is required, a sensor representing Return Air Temperature must also be connected (field- - supplied and installed). This sensor may be a T- - 55 Space Sensor (see Fig. 31) installed in the space or in the return duct, or it may be sensor PNO 33ZCSENSAT, installed in the return duct.
Page 23: Outdoor Air Quality Sensor
H G 24 VAC 24 VDC 8 7 6 5 4 3 2 1 Fig. 38 - - Indoor/Outdoor Air Quality (CO (33ZCSENCO2) - - Typical Wiring Diagram To accurately monitor the quality of the air in the conditioned air space, locate the sensor near a return- - air grille (if present) so it senses the concentration of CO leaving the space.
Page 24: Filter Status Switch
On 50HCQ units equipped with factory- - installed Smoke Detector(s), the smoke detector controller implements the unit shutdown through its NC contact set connected to the unit’s CTB input. The FSD function is initiated via the smoke detector’s Alarm NO contact set. The PremierLink communicates the smoke detector’s tripped status to the CCN building control.
Page 25 4000 ft, with no more than 60 total devices on any 1000- - ft section. Optically isolated RS- - 485 repeaters are required every 1000 ft. NOTE: Carrier device default is 9600 band. Communications Bus Wire Specifications: The CCN Communication Bus wiring is field- - supplied and field- - installed.
Page 26: Rtu- - Mp Control System
RTU- - MP Control System The RTU- - MP controller, see Fig. 47, provides expanded stand- - alone operation of the HVAC system plus connection and control through communication with several Building Automation Systems (BAS) through popular third- - party network systems. The available network systems are BACnet MP/TP, Modbus and Johnson J2.
Page 27 C10229 Fig. 49 - - Typical RTU- - MP System Control Wiring Diagram...
Page 28: Supply Air Temperature (Sat) Sensor
Parallel pins J5--- 1 = J2--- 6, J5--- 3 = J1--- 10, J5--- 5 = J1--- 2 are used for field --- installation. The RTU- - MP controller requires the use of a Carrier space sensor. A standard thermostat cannot be used with the RTU- - MP system.
Page 29: Field Connections
Phoenix connectors and then reconnect the connectors to the board. Space Temperature (SPT) Sensors — A field- - supplied Carrier space temperature sensor is required with the RTU- - MP to monitor space temperature. There are 3 sensors available for this application:...
Page 30: Indoor Air Quality (Co 2 Sensor)
To wire the return air enthalpy sensor, perform the following: 1. Use a 2- - conductor, 18 or 20 AWG, twisted pair cable to connect the return air enthalpy sensor to the enthal- py controller. 2. Connect the field- - supplied RED wire to (+) spade connector on the return air enthalpy sensor and the (+) terminal on the enthalpy controller.
Page 31: Communication Wiring - - Protocols
Input 8 or 9 is recommended for easy of installation. Refer to Fig. 47 and Fig. 49 for wire terminations at J5. Remote Occupancy: The remote occupancy accessory is a field- - installed accessory. This accessory overrides the unoccupied mode and puts the unit in occupied mode. When installing this accessory, the unit must be configured remote...
Page 32: Local Access
Local Access — BACview Handheld: The BACview interface used to connect to the RTU- - MP to access the control information, read sensor values, and test the RTU, see Fig. 57. This is an accessory interface that does not come with the MP controller and can only be used at the unit.
Page 33: Smoke Detectors
The LEDs on the RTU- - MP show the status of certain functions If this LED is on... Status is... Power The RTU MP has power The RTU MP is receiving data from the network segment The RTU MP is transmitting data over the network segment The digital output is active The Run and Error LEDs indicate control module and network status If Run LED shows...
Page 34: Smoke Detector Locations
Duct smoke sensor controller Conduit nuts (supplied by installer) Conduit support plate Terminal block cover Controller housing and electronics Conduit couplings (supplied by installer) Fastener (2X) Alarm Fig. 58 - - Controller Assembly Duct smoke sensor Exhaust tube Exhaust gasket Sensor housing and electronics Detail A...
Page 35: Return Air Without Economizer
location and the tubing to the sampling tube be connected. See “Completing Installation of Return Air Smoke Sensor:” for details.) Return Air Detector module (shipping position shown)* Return Air Detector Sampling Tube *RA detector must be moved from shipping position to operating position by installer Fig.
Page 36 Table 10 – Unit Wire/Fuse or HACR Breaker Sizing Data ELEC. HTR CRHEATER*** (KW) NONE 101A00 3.3/4.4 102A00 4.9/6.5 103B00 6.5/8.7 104B00 7.9/10.5 102A00,102A00 9.8/13.0 NONE 101A00 3.3/4.4 102A00 4.9/6.5 103B00 6.5/8.7 104B00 7.9/10.5 105A00 12.0/16.0 NONE 101A00 3.3/4.4 102A00 4.9/6.5 103B00 6.5/8.7...
Page 37 Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR CRHEATER*** (KW) NONE 101A00 3.3/4.4 102A00 4.9/6.5 103B00 6.5/8.7 104B00 7.9/10.5 102A00,102A00 9.8/13.0 NONE 101A00 3.3/4.4 102A00 4.9/6.5 103B00 6.5/8.7 104B00 7.9/10.5 105A00 12.0/16.0 NONE 101A00 3.3/4.4 102A00 4.9/6.5 103B00...
Page 38 Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR CRHEATER*** (KW) NONE 101A00 3.3/4.4 15.9/18.3 103B00 6.5/8.7 31.4/36.3 102A00,102A00 9.8/13.0 46.9/54.2 103B00,103B00 13.1/17.4 62.8/72.5 104B00,104B00 15.8/21.0 75.8/87.5 NONE 102A00 4.9/6.5 13.6/15.6 103B00 6.5/8.7 18.1/20.9 105A00 12.0/16.0 33.4/38.5 104B00,104B00 15.8/21.0...
Page 39 Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR CRHEATER*** (KW) NONE 101A00 3.3/4.4 15.9/18.3 103B00 6.5/8.7 31.4/36.3 102A00,102A00 9.8/13.0 46.9/54.2 103B00,103B00 13.1/17.4 62.8/72.5 104B00,104B00 15.8/21.0 75.8/87.5 NONE 102A00 4.9/6.5 13.6/15.6 103B00 6.5/8.7 18.1/20.9 105A00 12.0/16.0 33.4/38.5 104B00,104B00 15.8/21.0...
Page 40 Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR CRHEATER*** (KW) NONE 102A00 4.9/6.5 23.5/27.1 103B00 6.5/8.7 31.4/36.3 102A00,102A00 9.8/13.0 46.9/54.2 103B00,103B00 13.1/17.4 62.8/72.5 104B00,104B00 15.8/21.0 75.8/87.5 NONE 102A00 4.9/6.5 13.6/15.6 104B00 7.9/10.5 21.9/25.3 105A00 12.0/16.0 33.4/38.5 104B00,104B00 15.8/21.0...
Page 41 Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR CRHEATER**** (KW) NONE 102A00 4.9/6.5 23.5/27.1 103B00 6.5/8.7 31.4/36.3 102A00,102A00 9.8/13.0 46.9/54.2 103B00,103B00 13.1/17.4 62.8/72.5 104B00,104B00 15.8/21.0 75.8/87.5 NONE 102A00 4.9/6.5 13.6/15.6 104B00 7.9/10.5 21.9/25.3 105A00 12.0/16.0 33.4/38.5 104B00,104B00 15.8/21.0...
Page 42: Step 11 - Adjust Factory- -Installed Options
Legend and Notes for Table 10 LEGEND: BRKR --- Circuit breaker --- Convenient outlet --- Direct drive indoor fan motor DISC --- Disconnect --- Full load amps --- Indoor fan motor --- Locked rotor amps --- Minimum circuit amps --- Power exhaust PWRD CO --- Powered convenient outlet UNPWR CO...
Page 43: Step 12 - Install Accessories
Step 12 — Install Accessories Available accessories include: Roof Curb Thru- - base connection kit (must be installed before unit is set on curb) Manual outside air damper Two- - Position motorized outside air damper EconoMi$er IV (with control and integrated barometric relief) EconoMi$er2 (without control/for external signal and integrated barometric relief)
Page 44 Catalog No: 50HCQ---01SI Copyright 2010 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 04/10 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: NEW...

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50hcqa04 50hcqa05 50hcqa06

Carrier 50HCQA User Manual

The Installation

Safety Considerations

Installation

Electric Heaters

Premierlinkt (Factory Option)

RTU- - MP Control System

Smoke Detectors

Step 11 - Adjust Factory- -Installed Options

Step 12 - Install Accessories

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