Summary of Contents for Drummond MVA-24HWN1-M13
- Page 1 INSTALLATION INSTRUCTIONS HIGH EFFICIENCY - AIR HANDLERS COOLING ONLY & HEAT PUMP 2 - 5 TONS. MVA-24HWN1-M13, MVC-36WN1-M13, MVC-48WN1-M13M, MVA-60HWN1-M13. R-410A Refrigerant MAN-I-IDAH-0815...
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Page 2: Table Of Contents
TABLE OF CONTENTS 1.0 SAFETY.........................3 2.0 GENERAL......................5 2.1 UNIT DIMENSIONS..................6 3.0 APPLICATIONS....................7 3.1 VERTICAL UPFLOW..................7 3.2 VERTICAL DOWNFLOW.................7 3.3 HORIZONTAL....................8 3.4 INSTALLATION IN AN UNCONDITIONED SPACE........1 0 4.0 ELECTRICAL WIRING..................10 4.1 POWER WIRING...................10 4.2 CONTROL WIRING..................11 4.3 GROUNDING....................11 4.4 ELECTRICAL DATA..................11 5.0 AIRFLOW PERFORMANCE................12 6.0 DUCTWORK......................14... -
Page 3: Safety
This document is customer property and is to remain with this unit. These instructions do not cover all the different variations systems nor does it provide for every possible contingency to be met in connection with installtion. All phases of this installation must comply with NATIONAL STATE AND LOCAL CODES. - Page 4 WARNING The unit must be permanently grounded. Failure to do so can result in electrical shock causing personal injury or death. WARNING PROPOSITION 65: This appliance contains fiberglass insulation. Respirable particles of fiberglass are known to State of California to cause cancer. All manufacturer products meet current federal OSHA Guidelines for safety.
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Page 5: General
WARNING The first 36 inches of supply air plenum and ductwork must be constructed of sheet metal as required by NFPA 90B. The supply air plenum or duct must have a solid sheet metal bottom directly under the unit with no openings, registers or flexible air ducts located in it. -
Page 6: Unit Dimensions
NOTE: 25” CLEARANCE IS REQUIRED IN THE FRONT 2.1 UNIT DIMENSIONS OF THE UNIT FOR FILTER AND COIL MAINTENANCE. ELECTRICAL CONNECTIOS MAY EXIT TOP OR EITHER SIDE SUPPLY AIR HIGH VOLTAGE CONNECTION 7/8”, FLANGES ARE PROVIDED 1-23/64”, 1-23/32” DIA KNOCK OUTS FOR FIELD INSTALLATION LOW VOLTAGE CONNECTION BREAKER SWITCH... -
Page 7: Applications
3.0 APPLICATIONS 3.1 VERTICAL UPFLOW Vertical Upflow configuration is the factory set on all models (see Fig 1). If a side return air opening is required, field fabricate a return air plenum with an opening large enough to supply unit and strong enough to support unit weight. If return air is to be ducted, install duct flush with floor. -
Page 8: Horizontal
Using a screwdriver or pencil, lift blue plastic tab with hole away from breaker until breaker releases from mounting opening. With breaker held in hand, rotate breaker so that “on” position is up, “off” position is down with unit in planned vertical mounting position. insert right wire bundle into top right breaker lug, ensuring all strands of all wires are inserted fully into lug, and no wire insulation is in lug. - Page 9 ENSURE THE RETAINING CHANNEL IS FULLY ENGAGED WITH THE COIL RAIL. DETAIL A RAILS RAILS Fig.3 VERTICAL DOWNFLOW & HORIZONTAL LEFT APPLICATIONS (lower front service panel removed “view”.) STRAPS TOP AIR STOP REAR WATER CATCHER HORIZONTAL ADAPTER KIT FRONT WATER CATCHER AUXILIARY HORIZONTAL VAPOR LINE CONNECTION...
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Page 10: Installation In An Unconditioned Space
CAUTION Horizontal units must be configured for right hand air supply or left hand air supply. Horizontal drain pan must be located under indoor coil. Failure to use the drain pan can result in property damage. Conversion in Horizontal Direction: Horizontal left-hand supply can be changed to horizontal right-hand supply by removing the indoor coil and reinstalling 180°... -
Page 11: Control Wiring
4.2 CONTROL WIRING IMPORTANT: Class 2 low voltage control wiring should not be run in conduit with main power wiring and must be separated from power wiring, unless class 1 wire of proper voltage rating is used. • Low voltage control wiring should be 18 Awg. color-coded. For lengths longer than 100 ft., 16 Awg. -
Page 12: Airflow Performance
5.0 AIRFLOW PERFORMANCE Airflow performance data is based on cooling performance with a coil and no filter in place. Select performance table for appropriate unit size external static applied to unit allows opera- tion within the minimum and maximum limits shown in table below for both cooling and electric heat operation. - Page 13 CFM(Watts) Model Motor External Static Pressure-Inches W.C.[kPa] Number Speed 0[0] 0.1[.02] 0.16[.04] 0.2[.05] 0.3[.07] 0.4[.10] 0.5[.12] 0.6[.15] 0.7[.17] 0.8[.20] 1471 1427 1395 1374 1316 1247 1180 Watts Amps 1.66 1.64 1.63 1.62 1.58 1.55 1729 1678 1646 1625 1558 1491 1402 Middle Watts...
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Page 14: Ductwork
The air distribution system has the greatest effect on airflow. The duct system is totally controlled by the contractor. For this reason, the contractor should use only industry-recognized procedures. Heat pump systems require a specified airflow. Each ton of cooling requires between 350 and 450 cubic feet of air per minute (CFM), or 400 CFM nominally. -
Page 15: Refrigerant Connections
7.0 REFRIGERANT CONNECTIONS Keep the coil connections sealed until refrigerant connections are made. See the Installation Instructions for the outdoor unit for details on line sizing, tubing installa- tion, and charging information. Coil is shipped with “No charge”. Evacuate the system before charging with refriger- ant. -
Page 16: Air Filter (Not Factory-Installed)
• Install drain lines so they do not block service access to front of the unit. Minimum clearance of 24 inches is required for filter, coil or blower removal and service access. • Make sure unit is level or pitched slightly toward primary drain connection so that water will drain completely from the pan. -
Page 17: Filter Installation Dimensions
9.0 FILTER INSTALLATION DIMENSIONS FILTER RAILS UNIT MUST BE SLIGHTLY INCLINED FILTER COVER “H” MANUAL BOLT NOTE: Air filter is optional part, isn't factory-installed. Fig. 6 EXTERNAL FILTER BASE DIMENSIONAL DATA Return length FILTER SIZE Return width MODEL "W" IN [mm] "D" IN [mm] "H"... -
Page 18: Wire Diagram
10.0 WIRING DIAGRAM 1. To avoid the electrical shock, please connect the air conditioner with the ground lug. The main power plug in the air conditioner has been joined with the ground wiring, please don't change it freely. 2. The power socket is used as the air conditioner specially. 3. - Page 19 FOR OPTIONAL ELECTRIC HEAT LINE VOLTAGE FACTORY STANDARD FIELD INSTALLED FACTORY OPTIONAL VOLTAGE FACTORY STANDARD FIELD INSTALLED FACTORY OPTIONAL USE COPPER CONDUCTORS ONLY WARNING CABINET MUST BE PERMANENTLY MOTOR GROUNDED AND ALL WIRING TO CONFORM TO I.E.C,N.E.C,C.E.C,C.L.C,AND LOCAL CODES AS APPLICABLE REPLACEMENT WIRE MUST BE THE SAME GAUGE AND INSULATION TYPE AS ORIGINAL WIRE...
- Page 20 E L E C T R I C W I R I N G G A U G E Wiring gauge for A/C systems Model(Btu/h) Single Phase Power 208/230, 60Hz Voltage/frequency Input Current Fuse Indoor unit (A) Line Quantity Indoor Unit Power Line Line Diameter(AWG) Line Quantity...
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