Allstyle AB Series Installation Manual

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AB* SERIES
AIR HANDLER
GENERAL
The AB* Series is designed for horizontal recessed
installations in a furred down area, above a
suspended ceiling or recessed in the ceiling.
AB*Series models are for electric heat, DX cooling,
and for heat pump applications. The unit can be
configured for return air flow through the integral
access panel or at the end of the unit. Installation
tabs are built into the cabinet to facilitate mounting
the unit. Optional panels are available that allow
a wide range of installation options.
resistance heaters are available along with optional
air conditioning and heat pump indoor coils. Full
service of all components is easily accomplished
through the access panels.
WARNING: Do not operate this unit unless all service panels/access doors are in place. If
unit is located in the same area as the water heater or boiler, then the return air must be ducted
to the unit. Seal all service entrances to the unit to prevent combustible byproducts from the
water or boiler entering the air stream.
Installation of this unit shall be made in accordance with the National Electric Code, NFPA No. 90A and 90B, and
any other local codes or utilities requirements.
WARNING:
service and maintenance should be performed by a qualified technician. Consumer service is
recommended only for filter replacement.
WARNING: Ensure all power is disconnected before installing or servicing this unit. More
than one disconnect device may be required to de-energize the equipment. Hazardous voltage
can cause severe personal injury. Make certain all panels are in place before operating this unit.
UNPACKING
Carefully unpack the unit and inspect the contents
for damage. If any damage is found at the time of
delivery, proper notification and claims should be
made with the carrier who delivered the unit.
Check the unit rating plate to ensure model number
and voltage, plus any kits agree with what you
ordered.
The manufacturer should be notified
immediately of any discrepancy of parts or shortage.
Due to possible damage to equipment or personal injury, installation,
INSTALLATION GUIDE
Electric
The blower coil unit should be centrally located and may
be installed in an attic, basement, or crawlspace with 0"
clearance from any side, front, rear, or duct work. The
unit must be installed in a level position to ensure proper
condensation drainage. Make sure the unit is level in
both directions within 1/8".
The unit incorporates installation tabs that mount to the
framing and provide a 1/2" flange to trim to the finished
LOCATION
8.2021

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Summary of Contents for Allstyle AB Series

  • Page 1 AB* SERIES INSTALLATION GUIDE AIR HANDLER GENERAL The AB* Series is designed for horizontal recessed installations in a furred down area, above a suspended ceiling or recessed in the ceiling. AB*Series models are for electric heat, DX cooling, and for heat pump applications. The unit can be configured for return air flow through the integral access panel or at the end of the unit.
  • Page 2: Metering Device

    INSTALLATION GUIDE METERING DEVICE edge of a sheet rock ceiling. The face panel mounts to the cabinet and trims the installation. Optional air conditioning or heat pump coils are shipped All service entrances and exits on the cabinet are with a check-flow piston installed which is designed for recessed to allow for 2”...
  • Page 3: Sequence Of Operation

    INSTALLATION GUIDE THERMOSTAT SEQUENCE OF OPERATION Select a thermostat that is commonly referred to as a Cooling (Cooling only or heat pump with reversing single stage cooling with electric sub base. This stat valve energized in heat mode): When the T-Stat calls will energize the fan on a demand for heat or cool.
  • Page 4: Maintenance

    INSTALLATION GUIDE Defrost. When the unit starts the defrost cycle NOTE: supplemental heat can be provided by connecting B on the blower coil to the defrost relay on the outdoor The condensate drain pan shown in Figure 1., has heat pump. This will complete the circuit between R an adjustment strap to ensure proper condensate and B (in the blower coil) through a set of contacts in removal.
  • Page 5 INSTALLATION GUIDE WARNINGS Do not store or use any corrosives or combustibles in the vicinity of this unit. All panels must be in place and properly secured before operating this equipment. All electrical power servicing this unit must be disconnected prior to removal of any panels. Service of this unit must be accomplished by qualified trained professional personnel only.
  • Page 6: Wiring Guide

    Disconnect power. Disconnect orange high voltage lead and place on terminal labeled as "208V" for 208 Volts power. 230 Volt Air Handler with No Heat Allstyle Coil Company, LP 4-Wire Thermostat Wiring- C terminal not needed 5-Wire Thermostat Wiring- C terminal connects to common...
  • Page 7 WIRING GUIDE USE COPPER CONNECTORS ONLY. Use Conductors Suitable for 167 Deg F. HEATING HEATING 208-230VAC / 60Hz / 1Ph ELEMENT ELEMENT EQUIPMENT GROUND USE COPPER OR ALUMINUM WIRE. See Note 2 DISCONNECT POWER BEFORE NOT ALL MODELS USE FUSE LINKS Yellow INSTALLATION OR SERVICING.
  • Page 8: Wiring Diagram

    XFMR-C HIGH VOLTAGE WIRING LOW VOLTAGE WIRING SPEEDUP Air Handler w/No Heat CONSULT NATIONAL CODE FOR PROPER WIRE SIZE. BLACK Allstyle Coil Company, LP BLACK 7037 Brittmoore Rd, Houston, Texas 77041 Yellow 230V 208V AB* SERIES AIR HANDLER INSTALLATION GUIDE...
  • Page 9 WIRING DIAGRAM USE COPPER CONNECTORS ONLY. HEATING HEATING DISCONNECT POWER BEFORE ELEMENT ELEMENT Use Conductors Suitable for 167 Deg F. INSTALLATION OR SERVICING. 208-230VAC / 60Hz / 1Ph MULTIPLE POWER SOURCES MAY BE PRESENT. EQUIPMENT GROUND USE COPPER FAILURE TO DO SO MAY BLACK OR ALUMINUM WIRE.
  • Page 11 (G) Products installed outside the United States or its territories; (H) Failure to operate due to interruption and/or inadequate electrical service; (I) Any damage caused by frozen or broken water pipes in the event of equipment failure; (J) AllStyle is not responsible for any water damage to property.
  • Page 12 Coil Company, L.P 8.2021 AB* SERIES AIR HANDLER INSTALLATION GUIDE...

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