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Table of Contents
Related Manuals for McQuay Maverick I MPS006AG Series
Summary of Contents for McQuay Maverick I MPS006AG Series
- Page 1 Installat intenance Manual IM 861 ion and Ma Group: Applied Systems Part Number: 92-102421-03-00 Maverick I™ Date: March 2007 Commercial Packaged Rooftop System Cooling Only or Cooling & Heating Gas/Electric Model MPS006AG 6 Tons © 2007 McQuay International...
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Page 2: Table Of Contents
Table of Contents Furnace Section Controls and Ignition System . . . 15 Table of Contents ......2 Normal Furnace Operating Sequence . -
Page 3: Introduction
Specifications Recognize this symbol as an indication of Important Safety Information! General The Combination Gas Heating/Electric Cooling Rooftop is available in 100,000 & 135,000 BTU/Hr. heating inputs and Introduction cooling capacities of 6 nominal tons of cooling. Units are convertible from bottom supply and return to side supply and ▲... -
Page 4: Safety Information
Safety Information ▲ ▲ ▲ ▲ WARNING WARNING Use only with type of gas approved for this unit. Refer to the When a unit is installed so that supply ducts carry air unit rating plate. circulated by the unit to areas outside the space containing the unit, the return air shall also be handled by duct(s) sealed to the unit casing and terminating outside the space ▲... -
Page 5: Unit Dimensions
Unit Dimensions For clearances see page 9, Fgure 7. IMPORTANT: This unit must be mounted level in both directions to allow water to drain from the condenser section and condensate pan. Figure 1: Bottom View BASE ELECTRICAL BASE GAS ENTRY ENTRY CONDENSER COIL... - Page 6 Figure 3: Cabinet Dimensions and Access Locations 46.5 81.53 FLUE OUTLET SUPPLY GAS ENTRY 1/2” NPT 7.22 COMBUSTION AIR INLET 30.25 POWER ENTRY BURNER ACCESS CONTROL ENTRY 12.69 COMPRESSOR/ CONTROL BOX 17.75 14.63 ACCESS ST-A0801-16 Figure 4: Supply and Return Dimensions for Horizontal Applications – Back View RETURN SUPPLY 12.25...
- Page 7 IM 861...
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Page 8: Installation
Installation 2 Regular cleaning and waxing of the cabinet with a good automobile polish will provide some protection. General 3 A good liquid cleaner may be used several times a year to 1 INSTALLATION — Install this unit in accordance with remove matter that will not wash off with water. -
Page 9: Attaching Exhaust And Combustion Air Inlet Hoods
Figure 6: Cover gasket detail for units shipped for 4 Locate unit where operating sounds will not disturb downflow application being converted to horizontal. owner or neighbors. 5 Locate unit so roof runoff water does not pour directly on the unit. Provide gutter or other shielding at roof level. Do not locate unit in an area where excessive snow drifting may occur or accumulate. -
Page 10: Rooftop Installation
Figure 8: Flat rooftop installation, attic or drop ceiling On ductwork exposed to outside temperature and humidity, distributing system. Mounted on roofcurb. Curb must be use a minimum of 2 of insulation and a vapor barrier. level. Distribution system in attic, furred space or crawl space should be insulated with at least 2 of insulation. -
Page 11: Gas Supply, Condensate Drain And Piping
Figure 10: Roofcurb Figure 11: Roofcurb UNIT ROOFTOP UNIT NOTE: Remove shipping boards 1/4 TYP (3) SIDES from unit before *SEE NOTE installing on the roofcurb. GASKET COUNTER FLASHING* HOLD DOWN NAILER STRIP BRACKET TYP. (4) LCS. INSULATION* DUCT* GASKET (FULL PERIMETER CANT STRIP* AND ON DIVIDERS. -
Page 12: Lp Conversion
IMPORTANT: Check the rating plate to make certain the unit is Table 3: LP Gas Pipe Capacity Table (Cu. Ft./Hr.) equipped to burn the type of gas supplied. Care should be taken after installation of this equipment that the gas control valve not Maximum capacity of pipe in thousands of BTU per hour of undiluted liquefied petroleum gases (at 11 inches water column inlet pressure). -
Page 13: Condensate Drain
Figure 13: LP Conversion Kit Figure 14 MANIFOLD PIPE Figure 15: Condensate Drain IMPORTANT NOTE FOR ALTITUDES ABOVE 2,000 FEET (610 METERS): The main burner orifices in your furnace and in these kits are sized for the nameplate input and intended for installations at elevations up to 2,000 feet in the USA or Canada, or for elevations of 2,000 - 4,500 feet (610 -1,373 meters) in Canada if the unit has been derated at the factory. -
Page 14: Hook-Up
Figure 16: Recommended Branch Circuit Disconnect ampacity found on the unit rating plate. Use the smallest Location wire size allowable in Table 5 from the unit disconnect to unit. NOTE: A bracket is provided with the unit for mounting the branch circuit disconnect to the unit. -
Page 15: Thermostat
Figure 17: Through Base Electrical Connection Figure 18: Typical Thermostat Wiring I658 WIRE SIZE, AWG CONDUIT SIZE 1-1/4 1-1/4 1-1/2 1-1/2 HOLE SIZE 1-31/32 1-23/64 1-23/64 1-23/32 1-23/32 1-31/32 1-31/32 2-15/32 2-15/32 NOTES: 1. DETERMINE REQUIRED WIRE SIZE FROM MINIMUM CIRCUIT AMPACITY SHOWN IN INSTALLATION & OPERATING INSTRUCTION. 2. -
Page 16: Operating Instructions
To Start The Furnace 8 Thermostat is satisfied and opens. 1. STOP! Read the safety information on the Operating 9 The gas valve is de-energized and closes, shutting down the Instructions Label located on this unit. burner flame. ▲ ▲ 10 The control board will de-energize the inducer after a five DANGER second post purge. -
Page 17: Burners
▲ ▲ System Operating Information DANGER Advise The Customer Should overheating occur or the gas supply fail to shut off, shut off the manual gas valve to the unit before shutting off 1 Change the air filters regularly. The heating system the electrical supply. -
Page 18: Lubrication
Cooling Section 9 Remove the screws (3) connecting the divider plate to the heat exchanger center panel. Maintenance 10 Remove the turbulators from inside the heat exchangers by ▲ ▲ inserting the blade of a screwdriver under the locking tabs. DANGER Pop the tabs out of the expanded grooves of the heat exchanger. -
Page 19: Re-Assembly
3 The coil should be cleaned when it is dry. If the coil is coated with dirt or lint, vacuum it with a soft brush To find your local McQuay Certified Parts Distributor, go to attachment. Be careful not to bend the coil fins. - Page 20 IM 861...
- Page 21 General Data Nominal Sizes 6 Tons [21.1 kW] ASHRAE 90.1-2004 Compliant Models Model MPS- 006AGCL10E 006AGCL13E 006AGCM10E 006AGCM13E Cooling Performance CONTINUED Gross Cooling Capacity Btu [kW] 75,000 [22] 75,000 [22] 75,000 [22] 75,000 [22] EER/SEER 10.3/NA 10.3/NA 10.3/NA 10.3/NA Nominal CFM/ARI Rated CFM [L/s] 2400/2400 [1133/1133] 2400/2400 [1133/1133] 2400/2400 [1133/1133]...
- Page 22 General Data Nominal Sizes 6 Tons [21.1 kW] ASHRAE 90.1-2004 Compliant Models Model MPS- 006AGDL10E 006AGDL13E 006AGDM10E 006AGDM13E Cooling Performance CONTINUED Gross Cooling Capacity Btu [kW] 75,000 [22] 75,000 [22] 75,000 [22] 75,000 [22] EER/SEER 10.3/NA 10.3/NA 10.3/NA 10.3/NA Nominal CFM/ARI Rated CFM [L/s] 2400/2400 [1133/1133] 2400/2400 [1133/1133] 2400/2400 [1133/1133]...
- Page 23 General Data Nominal Sizes 6 Tons [21.1 kW] ASHRAE 90.1-2004 Compliant Models Model MPS- 006AGYL13E 006AGYM13E Cooling Performance Gross Cooling Capacity Btu [kW] 75,000 [22] 75,000 [22] EER/SEER 10.3/NA 10.3/NA Nominal CFM/ARI Rated CFM [L/s] 2400/2400 [1133/1133] 2400/2400 [1133/1133] ARI Net Cooling Capacity Btu [kW] 72,000 [21.1] 72,000 [21.1] Net Sensible Capacity Btu [kW]...
- Page 24 Miscellaneous ELECTRICAL DATA Model MPS- 006AGCL10E 006AGCL13E 006AGCM10E 006AGCM13E 006AGDL10E 006AGDL13E 006AGDM10E 006AGDM13E Unit Operating 187-253 187-253 187-253 187-253 414-506 414-506 414-506 414-506 Voltage Range Minimum Circuit Ampacity 34/34 34/34 34/34 34/34 Minimum Overcurrent 40/40 40/40 40/40 40/40 Protection Device Size Maximum Overcurrent 40/40 40/40...
- Page 25 Figure 19: Cooling Trouble Shooting Chart ▲ ▲ DANGER Disconnect all power to unit before servicing. Contactor may break only one side. Failure to shut off power can cause electrical shock resulting in personal injury or death. SYMPTOM POSSIBLE CAUSE REMEDY Unit will not run •...
- Page 26 Figure 20: Furnace Troubleshooting Guide (Combination Heating and Cooling Units With Direct Spark Ignition) WARNING HAZARDOUS VOLTAGE DISCONNECT POWER BEFORE LINE VOLTAGE SERVICING. CONNECTIONS SERVICE MUST BE BY A TRAINED, QUALIFIED SERVICE TECHNICIAN. START SET THERMOSTAT TO CALL FOR HEAT SET FAN SWITCH TO AUTO •...
- Page 27 NOTE: IF THE SYSTEM GOES INTO LOCKOUT, WAIT 30 SECONDS AND RESET THE SYSTEM. REPLACE SENSOR MAIN BURNER FLAME SUSTAINED • CHECK FLAME SENSOR POSITION AND CONDITION • CLEAN FLAME SENSOR WITH STEEL WOOL • CHECK FLAME SENSOR WIRES AND CONNECTIONS REPLACE IGNITION CONTROL •...
- Page 28 Figure 21 IM 861...
- Page 29 Figure 22 IM 861...
- Page 30 Figure 23: System Charge Charts 6 TON COOLING - CIRCUIT 1 SYSTEM CHARGE CHART – REFRIGERANT 22 6 TON, CIRCUIT 1 IM 861...
- Page 31 Figure 24: System Charge Charts 6 TON COOLING - CIRCUIT 2 SYSTEM CHARGE CHART – REFRIGERANT 22 6 TON, CIRCUIT 2 IM 861...
- Page 32 McQuay Training and Development Now that you have made an investment in modern, efficient McQuay equipment, its care should be a high priority. For training information on all McQuay HVAC products, please visit us at www.mcquay.com and click on training, or call 540-248-9646 and ask for the Training Department.
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