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Carrier 50ZP Series Installation Instructions Manual
Carrier 50ZP Series Installation Instructions Manual

Carrier 50ZP Series Installation Instructions Manual

Small packaged products 2 to 5 tons accessory electric heaters

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NOTE: Read the entire instruction manual before starting the
installation.
This symbol → indicates a change since the last issue.
SAFETY CONSIDERATIONS
Installing and servicing air conditioning equipment can be hazard-
ous due to system pressures, electrical components, and fuel gases.
Only trained and qualified personnel should install, service, or
repair air conditioning equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning coils, or cleaning and replacing filters. All other
operations should be performed by trained service personnel.
When working on air conditioning equipment, observe precautions
in the literature, on tags, and on labels attached to the unit.
Recognize safety information. This is the safety-alert symbol
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER identifies the most serious hazards which will result in
serious injury or death. WARNING signifies a hazard which could
result in serious injury or death. CAUTION is used to identify
unsafe practices which would result in minor personal injury or
product and property damage. NOTE is used to highlight sugges-
tions which will result in enhanced installation, reliability, or
operation.
Follow all safety codes. Wear safety glasses and work gloves.
Have a fire extinguisher available.
Before proceeding with heater installation, inspect thoroughly for
shipping damage. Notify shipper immediately if any damage is
found. Clean all dirt, dust and moisture from heater package.
Check for proper clearances of live parts, between phases and to
ground. Make sure that all required barriers are in place. Check
conductors run in multiple to insure that they are properly wired.
Refer to unit installation instructions for complete unit installation
details. The minimum air quantity for safe electric heater operation
is shown in Table 2.
Before performing installation, service or maintenance opera-
tions on this system turn off all main power switches and/or
disconnects. There may be more than one switch or discon-
nect. Turn off accessory heater power switch if applicable.
Electrical shock can cause serious injury or death. TAG
DISCONNECT SWITCH(S) WITH A SUITABLE
WARNING LABEL.
INTRODUCTION
This electric heater series is engineered, designed and listed to be
installed only in the models shown in Table 1. Before proceeding,
verify the heater label for correct voltage and kW requirements.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 1
PC 101
Catalog No. 535-00045
Tab 1b 5a

Installation Instructions

Electric Heaters 5–20 kW
.
Printed in U.S.A.
Small Packaged Products
Accessory Electric Heaters
Cancels: IIK 564A-24-1
DESCRIPTION AND USAGE
These SPP Electric heaters are to be used per Table 1 in SPP
Electric Cooling & Electric Heat Pump units.
Table 1—Electric Heater Usage Chart
UNIT
50ZP/564A/PA1Z
50ZH/664A/PH1Z
INSTALLATION
HEATER INSTALLATION
NOTE: Thermostat used must be capable of energizing "G"
(Indoor Fan) on a call for "W" (Heating). If "G" is not energized
system malfunction will occur.
1. Open all electrical disconnects and install lock-out tag before
beginning any installation or service work.
2. Check for proper equipment model number from list.
3. Verify that unit duct work is installed per base unit instruc-
tions.
4. Remove top cover of the unit to access heater compartment
(See Fig. 1).
5. Locate and remove the heater knockout plate in the indoor
blower housing (See Fig. 1 & 2).
6. Remove electric heater from the packaging. Route control and
heater high voltage wire through power and control wiring
knockout as shown in Fig. 1.
7. Install heater, sliding assembly carefully into heater area in the
blower housing (See Fig. 1 & 2). Ensure that mounting holes
of heater align with mounting holes on the unit. Secure heater
assembly with screws provided.
8. Dress wires with wire ties provided. Route heater wires along
existing unit wire bundles behind and away from capacitors.
9. Fused Units: Remove fuse links of the fuse block, attach fuse
block with screws (2) on mounting holes provided and
re-install the fuse links. Attach lid to unit panel with (4)
screws provided. Align with existing mounting holes (See Fig.
1).
10. Non-Fused Units: Adhere schematic in lieu of fused block
inside unit panel (See Fig. 2).
11. Install ground lug in mounting hole provided adjacent to 24-v.
compartment (See Fig. 2).
ELECTRICAL CONNECTION
1. Open all electrical disconnects and install lock-out tag before
beginning any installation or service work.
2. All electrical connections, wire sizes and type of conduit shall
meet the National Electric Code and State and Local Codes.
Main power supply, minimum wire sizes, circuits, fusing, etc.
Form 50Z-51SI
2 to 5 Tons
IIK 564A-24-2
11-01
SIZE
024–060
024–060
Pg 1
Replaces: 50Z-1SI

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Summary of Contents for Carrier 50ZP Series

  • Page 1: Installation Instructions

    Small Packaged Products 2 to 5 Tons Accessory Electric Heaters Cancels: IIK 564A-24-1 IIK 564A-24-2 11-01 Installation Instructions Electric Heaters 5–20 kW → NOTE: Read the entire instruction manual before starting the DESCRIPTION AND USAGE installation. These SPP Electric heaters are to be used per Table 1 in SPP This symbol →...
  • Page 2 UNIT VIEW ATTACHED LID WITH 4 SCREWS UNIT PANEL ADHERE BLACK GASKET (8”x 2 1/4) (ON FUSED MODELS) TO UNIT SIDE PANEL BETWEEN FUSE BLOCK AND PANEL POWER AND CONTROL WIRING THROUGH KNOCKOUT BLOWER HOUSING HEATER AREA C01055 Fig. 1—Unit Control Box (side view) BLOWER HOUSING TOP VIEW UNIT PANEL...
  • Page 3 7. Check that airflow across the heater is at or above the TABLE 2—Minimum Airflow for Heater Operation minimum recommended CFM requirement (See Table 2). MINIMUM AIRFLOW (CFM) Adjust indoor blower heat speed as required. UNIT SIZE UNIT 8. Any modifications or repairs to this equipment without written permission from the factory will be done at the installer’s own HEAT 1050...
  • Page 4 C01020 Fig. 3—Typical A/C Wiring Schematic 208/230-1...
  • Page 5 C01022 Fig. 4—Typical Heat Pump Wiring Schematic 208/230-1...
  • Page 6 BROWN TO UNIT CONTROL WHITE WIRING 24V YELLOW TO COMPRESSOR BLACK CONTACTOR 10 AWG FUSE BLOCK AUTO-LIMIT BLACK AUTO LIMIT BLACK CONTACTOR BLACK BLACK YELLOW YELLOW HEATER SECTION UNIT PANEL *Power supply wiring per NEC & local codes. 7.5/10.0 KILOWATTS Suitable for at least 75∞...
  • Page 7 BROWN TO UNIT CONTROL WIRING 24V WHITE YELLOW TO COMPRESSOR CONTACTOR 10 AWG BLACK AUTO-LIMIT BLACK TO UNIT POWER WIRING CONTACTOR BLACK YELLOW HEATER SECTION UNIT PANEL *Power supply wiring per NEC & local codes. 3.8/5.0 KILOWATTS Suitable for at least 75∞ C 208/240-1-60 VOLTS-PH-HZ Use copper conductor wiring only.
  • Page 8 BROWN TO UNIT CONTROL WHITE WIRING 24V VIOLET YELLOW TO COMPRESSOR BLACK CONTACTOR 10 AWG FUSE BLOCK AUTO-LIMIT BLACK AUTO LIMIT BLACK CONTACTOR AUTO-LIMIT BLACK AUTO-LIMIT BLACK BLACK CONTACTOR BLACK BLACK BLACK YELLOW YELLOW YELLOW YELLOW HEATER SECTION *Power supply wiring per NEC & local codes. Suitable for at least 75∞...
  • Page 9 BROWN TO UNIT CONTROL WIRING 24V WHITE VIOLET YELLOW TO COMPRESSOR CONTACTOR 10 AWG BLACK BLUE AUTO-LIMIT BLACK AUTO LIMIT YELLOW CONTACTOR TO UNIT PANEL WIRING AUTO-LIMIT YELLOW BLACK CONTACTOR YELLOW YELLOW BLUE BLUE BLUE HEATER SECTION *Power supply wiring per NEC & local codes. 7.5/10.0 Suitable for at least 75∞...
  • Page 10 BROWN TO UNIT CONTROL WHITE WIRING 24V VIOLET BLUE TO COMPRESSOR YELLOW CONTACTOR 10 AWG BLACK FUSE BLOCK AUTO-LIMIT BLACK AUTO LIMIT BLACK CONTACTOR AUTO-LIMIT BLACK AUTO-LIMIT BLACK BLACK CONTACTOR BLACK YELLOW YELLOW BLUE BLUE BLUE BLUE HEATER SECTION *Power supply wiring per NEC & local codes. Suitable for at least 75∞...
  • Page 11 BROWN TO UNIT CONTROL WIRING 24V WHITE VIOLET YELLOW TO COMPRESSOR CONTACTOR 10 AWG BLACK BLUE AUTO-LIMIT BLACK AUTO LIMIT YELLOW CONTACTOR TO UNIT PANEL WIRING AUTO-LIMIT YELLOW BLACK CONTACTOR YELLOW YELLOW BLUE BLUE BLUE HEATER SECTION *Power supply wiring per NEC & local codes. Suitable for at least 75∞...
  • Page 12 BROWN TO UNIT CONTROL WIRING 24V WHITE VIOLET YELLOW TO COMPRESSOR CONTACTOR 10 AWG BLACK BLUE AUTO-LIMIT BLACK AUTO LIMIT YELLOW CONTACTOR TO UNIT PANEL WIRING AUTO-LIMIT YELLOW BLACK CONTACTOR YELLOW YELLOW BLUE BLUE BLUE HEATER SECTION *Power supply wiring per NEC & local codes. Suitable for at least 75∞...
  • Page 13 BROWN TO UNIT CONTROL WHITE WIRING 24V YELLOW TO COMPRESSOR BLACK CONTACTOR 10 AWG FUSE BLOCK AUTO-LIMIT BLACK CONTACTOR BLACK YELLOW HEATER SECTION UNIT PANEL *Power supply wiring per NEC & local codes. 3.8/5.0 KILOWATTS Suitable for at least 75∞ C 208/240-1-60 VOLTS-PH-HZ Use copper conductor wiring only.
  • Page 14 BROWN TO UNIT CONTROL WHITE WIRING 24V VIOLET YELLOW TO COMPRESSOR BLACK CONTACTOR 10 AWG FUSE BLOCK AUTO-LIMIT BLACK AUTO LIMIT BLACK CONTACTOR AUTO-LIMIT BLACK BLACK CONTACTOR BLACK BLACK YELLOW YELLOW YELLOW HEATER SECTION *Power supply wiring per NEC & local codes. Suitable for at least 75∞...
  • Page 15 BROWN TO UNIT CONTROL WHITE WIRING 24V VIOLET YELLOW TO COMPRESSOR BLACK CONTACTOR 10 AWG BLUE FUSE BLOCK AUTO-LIMIT BLACK AUTO LIMIT BLACK CONTACTOR AUTO-LIMIT BLACK AUTO-LIMIT BLACK BLACK CONTACTOR BLACK YELLOW YELLOW BLUE BLUE BLUE BLUE HEATER SECTION *Power supply wiring per NEC & local codes. Suitable for at least 75∞...
  • Page 16 Copyright 2002 Carrier Corporation iik564a242 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 1 PC 101 Catalog No. 535-00045 Printed in U.S.A. Form 50Z-51SI Pg 16...