YORK YMMRZC020TAQ-B-X USER MANUAL Pdf Download (2024)

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Rooftop package air conditioners r410a (60hz)

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User's Manual

ROOFTOP PACKAGE AIR

CONDITIONERS R410A (60HZ)

YMMRZC020TAQ-B-X

YMMRZC025TAQ-B-X

New Released

YMMRZC020TAJ-B-X

YMMRZC025TAJ-B-X

Issue Date

Aug 5, 2020

ROOFTOP

Form: IMMRZCTAJ-200815

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Summary of Contents for York YMMRZC020TAQ-B-X

Page 1 ROOFTOP User's Manual New Released Form: IMMRZCTAJ-200815 ROOFTOP PACKAGE AIR CONDITIONERS R410A (60HZ) YMMRZC020TAQ-B-X YMMRZC020TAJ-B-X YMMRZC025TAQ-B-X YMMRZC025TAJ-B-X Issue Date Aug 5, 2020...
Page 3 CONTENTS PAGE WARNING ACCESSORIES..................1 Ask your dealer for installation of the air conditioner. GENERAL INFORMATION................1 Incomplete installation performed by yourself may result in a UNIT DIMENSIONS................3 water leakage, electric shock, and fire. LOCATIONS AND RECOMMENDATIONS..........4 your dealer improvement, repair, INSTALLATION..................4 maintenance.
Page 4 CAUTION WARNING Do not operate the unit without the evaporator fan access Check the electric wire, water and gas pipeline layout inside panel in place. Reinstall the access panel after performing the wall, floor and ceiling before installation. Do not implement any maintenance.
Page 5 3. UNIT DIMENSIONS Units: mm YMMRZC020TAQ-B-X & YMMRZC020TAJ-B-X YMMRZC025TAQ-B-X & YMMRZC025TAJ-B-X Condenser fan Maintain orifice for air supply motor Drain connection hole Fig.3-4 Horizontal supply opening Horizontal return opening Fig.3-5 Hole for bottom installation 16-15×20 Fig.3-6...
Page 6 4. LOCATIONS AND RECOMMENDATIONS 5. INSTALLATION 4.1 Horizontal airflow application 5.1 Lifting These units are designed and certified for outdoor installations. These units may be installed directly on wood flooring or on Rigging cables should have adequate capability to resist 3 Class A, Class B, or Class C roof covering material.
Page 7 5.4 Condensate drain piping 5.3 Ground level-horizontal units For ground level installations, the unit should be positioned on a pad in the size of the unit or larger. The unit must be level on the pad. The pad must not come in contact with the structure. Be sure the outdoor portion of the supply and return air ducts are as short as possible.
Page 8 6.1 Protections and safety control 6. ELECTRICAL WIRING Minutes delay for the compressor start-up At the beginning of energizing, 3-minutes delay should be taken to start the compressor. while after the stop of the WARNING compressor, 7-minutes delay should be taken to re-start the compressor.
Page 9 Unit main power Main power switch Fuse Wires for Power supplies Type of wires 3xUL1015 1/0AWG 220V 3N~ 60Hz 150A 125A 3x50mm +2x25mm YMMRZC020TAQ-B-X 2xUL1015 3AWG 3xUL1015 3AWG 460V 3N~ 60Hz 3x25mm +2x10mm YMMRZC020TAJ-B-X 2xUL1015 7AWG 3xUL1015 1/0AWG 220V 3N~ 60Hz 125A...
Page 10 Suggestion: Thermostat choose KJR-23B or Non-programmed 6.6 Control wiring eletrical thermostat series of Honeywell, such as TH 5220D. Wiring please refer to the Owner’s Manual of the thermostat. Power supply 　　Dial code settings Set the dial code SW3 of PCB in unit’s wire control box, After L1 L2 L3 settings, please shut off the power supply and then repower, otherwise, the new settings function couldn’t work.
Page 11 6.7 Error code Type Content Code Remarks Normal Standby Normal Constraint cool Normal Compressor phase sequence Error error or phase default Outdoor coil sensor in sys. A error Error Error Outdoor coil sensor in sys. B error Overcurrent protection of system A are active Unit shall be power off to Error 3 times within one hour...
Page 12 7. SPECIFICATION 7.1 Physical Data Tab.7-1 Model YMMRZC020TAQ-B-X YMMRZC020TAJ-B-X YMMRZC025TAQ-B-X YMMRZC025TAJ-B-X Model type Hor. Type of flow Hor. Hor. Hor. Cooling capacity(net) (Btu/h) (Ⅰ) Capacity Heating capacity (Btu/h) Performance Length(mm) 2320 2320 2320 2320 Width(mm) Dimensions 2220 2220 2220 2220...
Page 13 7.2 Parameter For Air Volume Parameter table for indoor unit air volume BLOWER DRIVE OPTIONS MOTOR BLOWER SPEED RANGE (RPM) NOMINAL TON PULLEY PITCH DIA. PULLEY PITCH DIA. (INCH) (INCH) MINIMUM MAXIMUM 20 TON 1730 4.53~5.25 1088 7.87 25 TON 1730 4.29~5.24 1060...
Page 14 YMMRZC020TAQ-B-X & YMMRZC020TAJ-B-X 0.25 0.75 1.25 1.75 2.25 2.75 Exterm al static pressure(ESP) Fan speed(RPM) 1172 Pow er input(W) 8368 Air flow (CFM) 13634 Fan speed(RPM) 1174 Pow er input(W) 8191 Air flow (CFM) 13419 Fan speed(RPM) 1188 1174 Pow er input(W)
Page 15 YMMRZC025TAQ-B-X Extermal static 0.25 0.75 1.25 1.75 2.25 2.75 pressure(ESP) Fan speed(RPM) 1257 1249 1241 Power input(W) 9193 8828 8442 Air flow(CFM) 13959 13782 13515 Fan speed(RPM) 1258 1250 1242 Power input(W) 8912 8559 8195 Air flow(CFM) 13618 13441 13220 Fan speed(RPM) 1259 1251...
Page 16 YMMRZC025TAJ-B-X 0.25 0.75 1.25 1.75 2.25 2.75 Extermal static pressure(ESP) Fan speed(RPM) 1258 1249 1242 Power input(W) 8572 8274 7975 Air flow(CFM) 13826 13130 13489 Fan speed(RPM) 1258 1250 1242 Power input(W) 8379.5 8065 7750 Air flow(CFM) 13576 13387 13199 Fan speed(RPM) 1259 1252...
Page 17 START-UP WARNING At least 1m flame resistant layer must be laid at the end Before starting unit of the air duct internal surface. ● Is the unit properly located and level with the proper clearance? Regulating belt of tension ● Is the duct work correctly sized, run, taped, insulated, and Refer to Fig.9-3, loose 2 bolts, and move the electric motor to weatherproofed with proper unit arrangement? See Ductwork...
Page 18 CAUTION Do not operate the unit without the evaporator fan access Air filter assembly panel in place. Reinstall the access panel after performing any maintenance. Operating the unit without the access panel may result in severe personal injury or death. This unit is not intended for use by persons (including plate Air filter...
Page 19 2020 Johnson Controls, Inc. www.johnsoncontrols.com Form: IMMRZCTAJ-200815 Johnson Controls reserve the right to change product features without prior notice.

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