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American Standard YCZ036F1 Installation & Maintenance Manual

Single package two stage gas/electric 16 seer convertible 3 & 5 to.
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INSTALLATION
OPERATION
MAINTENANCE
ALL phases of this installation must comply with
NATIONAL, STATE AND LOCAL CODES
Model:
YCZ036F1/3M0B
YCZ060F1/3M0B
BAYLIFT002A
LIFTING LUG KIT
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information pack upon completion of work.
WARNING:
All phases of this installation must comply with the NATIONAL, STATE & LOCAL CODES. In the absence of local codes, the
installation must conform with National Electric Code -- ANSI/NFPA 70 or "LATEST REVISION."
Since the manufacturer has a policy of continuous
product improvement, it reserves the right to change
specifications and design without notice.
© American Standard Inc. 1999
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
Library
Product Section
Product
Model
Literature Type
Sequence
Date
File No.
Supercedes
Single Package Two Stage
Gas/Electric 16 SEER
Convertible 3 & 5 Ton
YCZ-IOM-1A
18-EB21D4-2
Service Literature
Unitary
Packaged Gas/Electric
Installation, Operation, Maintenance
July 1999
SV-UN-RT-YCZ-IOM-1A 7/99
YCZ-IOM-1
YCZ
1A

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   Summary of Contents for American Standard YCZ036F1

  • Page 1 All phases of this installation must comply with the NATIONAL, STATE & LOCAL CODES. In the absence of local codes, the installation must conform with National Electric Code -- ANSI/NFPA 70 or "LATEST REVISION." Since the manufacturer has a policy of continuous product improvement, it reserves the right to change specifications and design without notice. © American Standard Inc. 1999...
  • Page 2: General Information

    GENERAL INFORMATION IMPORTANT: Read this entire manual before beginning INSPECTION installation procedures. 1. Check for damage after the unit is unloaded. Report promptly, to the carrier, any damage found to the unit. Do not drop the unit. WARNING: BODILY INJURY CAN RESULT FROM HIGH VOLTAGE ELECTRICAL COMPONENTS, FAST MOVING FANS, IMPORTANT: The use of “spreader bars”...
  • Page 3 TYPICAL ROOFTOP INSTALLATION WITH FULL PERIMETER CURBS (YCZ036,060F Models) FIELD SUPPLIED SUPPORTS AT EACH END OF CURB ROOFING ROOF INSULATION FIELD SUPPLIED CANT STRIP ROOF DECK FIELD SUPPLIED RIGID INSULATION ROOF MOUNTING CURB SUPPLY AIR RETURN AIR DUCT DUCT TYPICAL ROOFTOP INSTALLATION WITH BAYCURB030A,038A (YCZ036,060F Models) SEE NOTE 1 SEE NOTE 2...
  • Page 4: Dimensional Data

    DIMENSIONAL DATA YCZ036,060F OUTLINE – BACK YCZ036F YCZ060F Page 4...
  • Page 5 DIMENSIONAL DATA YCZ036,060F OUTLINE – FRONT " 0 " 0 " 0 " 0 " 0 " 0 " 0 " 0 " 8 " 0 " 0 " 0 Page 5...
  • Page 6 CONVERTING HORIZONTAL TO DOWNFLOW NOTE SUPPLY OPENING 1. REMOVE SCREW NEAREST TO THE OPENING AND PULL THE PANEL FIRMLY HEATER EXCHANGER TUBES TOWARD THE OUTSIDE OF THE UNIT TO DISENGAGE THE BACK ATTACHMENT. RETURN OPENING 2. REMOVE RIGHT HAND SCREW AND MOVE PANEL TO THE RIGHT OR RE- MOVE BOTH SCREWS.
  • Page 7 LOCATIONS AND RECOMMENDATIONS HORIZONTAL AIRFLOW APPLICATION 3. See the unit’s nameplate for the absolute minimum clearance between the unit and any combustible surface(s). 1. These units are design certified for outdoor installations. These IMPORTANT: units may be installed directly on wood flooring or on Class A, Class B, or Class C roof covering material.
  • Page 8: Installation

    LOCATIONS AND RECOMMENDATIONS continued from page 7 15. Access and service clearances for the unit must be given Examine all flue product-carrying areas of the furnace, its vent careful consideration when locating the duct entrance open- system, and the main burner for safe operation. A periodic ings.
  • Page 9 INSTALLATION IMPORTANT: Do not lift the unit without test lifting for PLACING THE UNIT ON A MOUNTING CURB balance and rigging. Do not lift the unit in windy conditions or above personnel. Do not lift the unit by attaching a 1.
  • Page 10 INSTALLATION ROOFTOP -- UNITS 4. Place the unit on the frame or roof curb. Refer to Figures 9 or For roof top applications using a field fabricated frame and ducts, use the following procedure: 5. Secure the unit to the frame or roof curb. 1.
  • Page 11: Condensate Drain Piping

    INSTALLATION GROUND LEVEL -- HORIZONTAL UNITS 2. Attach the supply and return air ducts to the unit. For ground level installations, the unit should be positioned on a pad 3. Insulate any ductwork outside of the structure with at least 2 the size of the unit or larger.
  • Page 12 DUCTWORK ATTACHING DOWNFLOW DUCTWORK TO ROOF CURB ATTACHING HORIZONTAL DUCTWORK TO UNIT Supply and return air flanges are provided on the roof curb for easy All conditioned air ductwork should be insulated to minimize heating duct installation. All ductwork must be run and attached to the curb and cooling duct losses.
  • Page 13: Gas Piping Installation

    GAS PIPING INSTALLATION CAUTION: Before making the gas pipe connection give seri- NOTE: If this is an LPG application, consult your LPG supplier ous consideration to providing the required clearance neces- for pipe sizes and deliveries. sary to remove the access panels on the unit (e.g., economizer and filter access panels).
  • Page 14: Manifold Pressure

    GAS PIPING INSTALLATION NOTE: The shut-off gas cock must be installed outside of the BURNER & VALVE ILLUSTRATION unit and should meet the specifications of all applicable national and local codes . 2. Install a ground union joint downstream of the shut-off cock. COVER This joint must also be installed outside of the unit.
  • Page 15: High Altitude Installation

    3/32" hex wrench. 2nd Stage (Hi) Note: Manifold If Model YCZ036F1,3M is installed in a region where NOX must be Pressure below 40 nanograms per input to 72,000 BTUH. Adjustment HIGH ALTITUDE INSTALLATION...
  • Page 16: Filter Installation

    FILTER INSTALLATION AIR FILTERS TABLE 4 Filters are to be used with the YCZ036,060F heating/cooling units. The basic unit does not have filters in it. However, a filter frame - . t accessory is offered that will allow filters to be installed within the unit.
  • Page 17 ELECTRICAL WIRING After all electrical wiring is complete, set the thermostat system the Thermostat System Switch until power has been applied long switch in the OFF position so that the compressor will not run enough to evaporate any liquid R-22 in the compressor. It is and then apply power by closing the system main disconnect recommended that the sump heater be energized for eight (8) hours switch.
  • Page 18 START - UP PRE-START QUICK CHECKLIST NOTE: Do not use the pressures from the unit's SERVICE FACTS to determine the unit refrigerant charge. The correct charge is Is the unit properly located and level with the proper clearance? shown on the unit nameplate. To charge the system accurately, See Figure 4.
  • Page 19: Sequence Of Operation

    START - UP 8. Set the thermostat at the desired temperature setting and the 6. Cycle the thermostat OFF and ON a few times at a rate of not unit will function automatically. more than once every thirty (30) seconds. Check both the control operation and the burner operating conditions.
  • Page 20 SEQUENCE OF OPERATION The rollout switch (FS) is located in the gas compartment near the Call for 2nd stage after 1st stage: inlet of the burners. This is a single use device designed to protect The Y2 thermostat contact closes to the control board. for 1 minute against any form of flame rollout.
  • Page 21: Checkout Procedure

    CHECKOUT PROCEDURE TROUBLESHOOTING CHART SYSTEM FAULTS REFRIGERANT CIRCUIT Liquid Pressure Too high Liquid Pressure Too Low Suction Pressure Too High Suction Pressure Too Low Liquid Refrigerant floodback (TXV System) Liquid Refrig. floodback (Cap. Tube System) I. D. Coil Frosting Compressor Runs Inadequate or No Cooling ELECTRICAL Compressor &...
  • Page 22: Maintenance

    MAINTENANCE ROUTINE MAINTENANCE BY OWNER Visually inspect the unit to ensure that the airflow required for combustion and condenser coil is not obstructed from the unit. You can do some of the periodic maintenance functions for your YCZ-F unit yourself; this includes replacing the disposable or Inspect the control panel wiring to verify that all electrical cleaning the permanent air filters, cleaning the unit cabinet, connections are tight and that the wire insulation is intact.
  • Page 23: Limited Warranty

    Models Less Than 20 Tons for Residential Use* (Parts Only) This warranty is extended by American Standard Inc., to the original purchaser and to any succeeding owner of the real property to which the Combination Gas Electric Air Condi- tioner is originally affixed, and applies to products purchased and retained for use within the U.S.A.
  • Page 24 Models Less Than 20 Tons for Commercial Use* (Parts Only) This warranty is extended by American Standard Inc., to the original purchaser and to any suc- ceeding owner of the real property to which the Combination Gas Electric Air Conditioner is originally affixed, and applies to products purchased and retained for use within the U.S.A.

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