MrCool Signature Series Owners & Installation Manual
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The Signature Series is NOT designed for amateur installation. Installation SHOULD be performed by an authorized technician.
Please read this manual carefully before installation and keep it for future reference.
Owner & Installation
Manual
Signature Series
MPG*S*M414A-2 Residential Package
Due to updates and constantly improving performance, the information and instructions within this
manual are subject to change without notice. Please visit www.mrcool.com/documentation to
ensure you have the latest version of this manual.
Version Date: 05-05-21
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Table of Contents
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Summary of Contents for MrCool Signature Series
- Page 1 The Signature Series is NOT designed for amateur installation. Installation SHOULD be performed by an authorized technician. Please read this manual carefully before installation and keep it for future reference. Owner & Installation Manual Signature Series MPG*S*M414A-2 Residential Package Due to updates and constantly improving performance, the information and instructions within this manual are subject to change without notice.
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Page 2: Table Of Contents
Refer to this manual. For assistance or additional information, Manufactured By consult a licensed professional (or equivalent), HVAC MRCOOL LLC installer, service agency, or the gas supplier. 48 Remington Way Hickory, KY 42051 CAUTION The installation of the unit, wiring, warm air ducts, venting, etc. -
Page 3: Unit Dimensions
4.12 TYPICAL VENT HOOD 13.21 TYPICAL DRAIN LOCATION POWER ENTRY 3.87 1-1/8 DIA. KNOCKOUT 13.44 13.44 3.62 LOW VOLTAGE ENTRY 7/8 KNOCKOUT 32.20 26.19 17.07 14.32 16.06 GAS ENTRY 12.12 6.20 6.20 3.07 5.86 4.06 Page 2 of 19 mrcool.com... - Page 4 TYPICAL VENT HOOD 13.21 TYPICAL DRAIN LOCATION 3.87 POWER ENTRY 1-1/8 DIA. KNOCKOUT 18.19 18.19 LOW VOLTAGE ENTRY 3.62 7/8 DIA. KNOCKOUT 30.19 36.20 17.07 14.32 GAS SUPPLY 16.06 4.06 12.14 6.20 6.20 4.20 3.76 mrcool.com Page 3 of 19...
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Page 5: Roof Curb Dimensions
NOTE - Roof deck may be omitted within confines of curb. NOTE - If bottom entry is used, condensate from the heat exchanger may leak during warm ambient temperatures in humid climates. Ensure that bottom entry is watertight, if used. Page 4 of 19 mrcool.com... - Page 6 NOTE - Roof deck may be omitted within confines of curb. NOTE - If bottom entry is used, condensate from the heat exchanger may leak during warm ambient temperatures in humid climates. Ensure that bottom entry is watertight, if used. mrcool.com Page 5 of 19...
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Page 7: Adjustable Roof Curb Dimensions
Opening for Gas Entry thru base NOTE - If bottom entry is used, condensate from the heat exchanger may leak during warm ambient temperatures in humid climates. Ensure that bottom entry is watertight, if used. Page 6 of 19 mrcool.com... - Page 8 Opening for Gas Entry thru base NOTE - If bottom entry is used, condensate from the heat exchanger may leak during warm ambient temperatures in humid climates. Ensure that bottom entry is watertight, if used. mrcool.com Page 7 of 19...
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Page 9: Installation
• agent should be made in writing. air duct. Location • The return air duct must be provided and sealed to Use the following guidelines to select a suitable location the unit. for these units. Page 8 of 19 mrcool.com... - Page 10 Connect rigging to the unit base rails using both holes in each corner. Field-Provided Lifting Spreaders Recommended Shipping Bracket and Mounting Screws Must be Removed for Rooftop or Downflow Application Figure 1. mrcool.com Page 9 of 19...
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Page 11: Venting
Operating pressures for units charged with HFC-410A are higher than pressures in units charged with HCFC- Vent Hood 22. All service equipment MUST be rated for use with HFC-410A refrigerant. Attach with Screws Figure 2. Installing the Vent Cover Page 10 of 19 mrcool.com... -
Page 12: Duct System
See National Fuel Gas Code, ANSI Z223.1 (latest edition) or CAN/CGA B149.1 & .2 Canadian NOTE: Installation Codes to correct improper operation of common venting system. the unit in applications where access to the rear panel is limited. mrcool.com Page 11 of 19... -
Page 13: Condensate Drain
Seal around the drain connection with suitable provided in the instruction bag and should be used to seal material to prevent air leakage into the return air system. gas supply line to gas entry of control compartment. Page 12 of 19 mrcool.com... -
Page 14: Electrical Wiring
Some soaps so that water or moisture cannot be drawn into the unit used for leak detection are corrosive to certain metals. during normal operation. mrcool.com Page 13 of 19... -
Page 15: Heating Start-Up
Color-coded insulated wires Figure 7. Gas Valve (#18 AWG) should be used to connect the thermostat to the unit. Page 14 of 19 mrcool.com... - Page 16 Label wires going to the gas valve, then disconnect For example, by actual measurement, it takes 38 seconds the wires. for the hand on the 1-cubic foot dial to make a revolution with a 100,000 BTU/HR furnace running. The result is mrcool.com Page 15 of 19...
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Page 17: Operation
With the proper thermostat and sub-base, continuous the protector will open and cause the compressor to stop. blower operation is possible by closing the R to G circuit. Cooling blower delay is also functional in this mode. Page 16 of 19 mrcool.com... -
Page 18: Maintenance
If the combustion air blower should fail, the pressure obstructed by overhanging structures or shrubs. switch prevents the spark electrode and gas valve from being energized. Condenser Coil Clean condenser coil annually with water and inspect monthly during the cooling season. mrcool.com Page 17 of 19... - Page 19 Table 5. Cooling Performance - Gas/Electric Models 80 DB / 67 WB Deg. Air Temperature Entering Evaporator Coil, Degree F Return Air Cooling Input Pressure 65° 70° 75° 80° 82° 85° 90° 95° 100° 105° 110° 115° (1000 BTU) Suction Liquid Page 18 of 19 mrcool.com...
- Page 20 Figure 8. Wiring Diagram – Single Phase CT mrcool.com Page 19 of 19...
- Page 21 Signature Series MPG*S*M414A-2 Residential Package ELECTRICIAN and/or HVAC TECHNICIAN: LICENSE #: INSTALLATION DATE: INSTALLATION LOCATION: SERIAL NUMBER:...