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®
®
®
CQS
CQS
R-410A
Refrigerant
This unit contains R-410A high pressure refrigerant. Hazards exist that could result in
personal injury or death. Installation, maintenance, and service should only be performed by
an HVAC technician qualified in R-410A refrigerant and using proper tools and equipment.
Due to much higher pressure of R-410A refrigerant, DO NOT USE service equipment or
tools designed for R22 refrigerant.
WARNING:
!
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious injury, death, or
property damage.
Be sure to read and understand the installation, operation, and service instructions in
this manual.
Improper installation, adjustment, alteration, service, or maintenance can cause
serious injury, death, or property damage.
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity
of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Leave the building immediately.
Immediately call your gas supplier from a phone remote from the building. Follow
the gas supplier's instructions.
If you cannot reach your gas supplier, call the fire department.
— Installation and service must be performed by a qualified installer, service agency,
or the gas supplier.
Model Series RCB, RDB, RCC, & RDC Packaged Makeup Air Cooling;
Models RDCB, RDDB, RDCC, & RDDC Packaged Makeup Air Cooling
with a Gas-Fired Heat Section; and Models RECB, REDB, RECC, &
REDC Packaged Makeup Air Cooling with an Electric Heat Section;
MAPS
III&IV Cabinets
®
"A", "B", and "C"
Applies to: All MAPS
and Model JHUP Gas-Fired Curb Duct Furnaces
MAPS
Cabinet "D"
DANGER:
Form I-MAPSIII&IV (Version F.1)
Obsoletes Form I-MAPSIII (Version E)
Installation
III&IV (Cabinets A, B, C, and D)
®
III
®
Form I-MAPSIII&IV, P/N 222917R9, Page 1

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Summary of Contents for Reznor MAPS III

  • Page 1 Form I-MAPSIII&IV (Version F.1) ® Obsoletes Form I-MAPSIII (Version E) Installation ® ® ™ Applies to: All MAPS III&IV (Cabinets A, B, C, and D) ® Model Series RCB, RDB, RCC, & RDC Packaged Makeup Air Cooling; Models RDCB, RDDB, RDCC, & RDDC Packaged Makeup Air Cooling with a Gas-Fired Heat Section;...
  • Page 2: Table Of Contents

    10.3 Checklist - Startup ........65 5.5 Rigging and Lifting the MAPS Units ..28 ® 10.4 Checklist After Startup: ......69 6.0 Mechanical ..........30 STARTUP Form for Reznor MAPS Units ..70 ® ® 6.1 Energy Recovery Module (Option ER1) ..30 APPENDIX ............71...
  • Page 3: General Information

    Warnings for MAPS ® WARNING Units with a Gas Heat Section Gas-fired appliances are not designed for use in hazardous atmospheres containing flammable vapors or combustible dust, in atmospheres containing chlorinated or halogenated hydrocarbons, or in applications with airborne silicone substances. WARNING Should overheating occur, or the gas supply fail to shut off, shut off the manual gas valve to the appliance before...
  • Page 4: Installation Codes

    All cooling and re-heat pump reheat cycle circuits are fac- tory-charged with R-410A refrigerant. Models RDCB, RDDB, RDCC, and RDDC include a single or double gas heat sec- Approval and tion. The gas-fired, power-vented duct furnace uses the Reznor TCORE combustion ®...
  • Page 5 A = Model Rating Plate (applies to all models) HH = Rated Load Amps of Compressor E B = Manufacturing Date (Month/Year) REZNOR II = Locked Rotor Amps of Compressor E C = Blower Motor HP ® D = Volts/Phase/Hertz T = Quantity Condenser Fan Motors MERCER, PA., U.S.A.
  • Page 6: Storage

    3.0 Receiving 3.2 Storage and Storage If this system is going to be stored, take precautions to prevent condensate formation (cont'd) inside the electrical compartments and motors. To prevent damage to the unit, do not store sitting on the ground. Battery backup for controls will maintain for approximately one year.
  • Page 7: Dimensions

    4.2 Dimensions 4.2.1 Dimensions - Cabinet Sizes A, B, and C FIGURE 3A - General Arrangement and Dimensions (inches/mm) - Cabinets A, B, and C Cabinet Dimensions - inches 73-7/8 43-7/8 76-1/4 41-7/8 39-1/2 72-5/8 24-1/4 20-1/4 12-1/2 17-1/2 26-3/4 (Opt AS16); 44 (Opt AS19)* 73-7/8 43-7/8 76-1/4...
  • Page 8 4.2 Dimensions (cont'd) 4.2.2 Dimensions of Cabinet D Size Models and Cabinet D Door Hinges FIGURE 3B - General 3/4 (19) Arrangement and Dimensions - inches (mm) of 71-7/8 Top View (1826) D Cabinet Models 18-3/16 (462) (19) Combustion Front View Left Side View (Control Side) Air Hood 48-11/32”...
  • Page 9: Mounting

    5.1 Approximate Weights 5.0 Mounting The weights listed here are approximate and are not corner weights. If corner weights are needed, refer to www.RezSpec.com or call 1-800-695-1901. 5.1.1 Accessory Cabinet Size Optional Accessory (kg) (kg) (kg) (kg) Weights Outside Air Hood (Option AS16 or AS19) (20) (36) (67)
  • Page 10: Curb Cap Base And Mounting

    When on a roof, either a manufacturer-designed roof curb, a (cont'd) field-supplied roof curb, or other field-supplied support is required. NOTE: A Reznor ® roof curb is required with a vertical discharge and/or bottom return air to provide a 5.2 Curb Cap Base...
  • Page 11 If the application is sound sensitive, consider installing a field-supplied vibration isola- tion curb or specialty sound attenuation curb. Whether using an optional roof curb available with the system or a field-supplied curb, the curb must be secure, square, and level. When the unit is being placed on a roof, location depends on the roof structure and is the responsibility of the installer.
  • Page 12 5.0 Mounting 5.4 Mounting on a Roof Curb (cont'd) (cont'd) 5.4.1 Downflow Roof Curbs for MAPS Cabinets A, B, C (cont'd) ® 5.4.1.1 Curb for Vertical (Down) Airflow (Option CJ31) (cont'd) Installation Instructions CAUTION: Before installation, recheck to be sure that the correct curb for Down Discharge has been ordered.
  • Page 13 Dimensions - Downflow Roof Curb Option CJ31 for MAPS III & IV ® Airflow Cabinet Sizes A, B, and Location NOTE: On Cabinet Sizes A and B, the supply air duct 1-1/2” connection (CxD) is (38mm) FIGURE 7C - Roof Curb centered with Dimension “G”...
  • Page 14 5.0 Mounting 5.4 Mounting on a Roof Curb (cont'd) (cont'd) 5.4.1 Downflow Roof Curbs for MAPS III Cabinets A, B, C (cont'd) ® 5.4.1.2 Roof Curb for MAPS III&IV A, B, and C Cabinet with Vertical (Down) Airflow WITH an ®...
  • Page 15 2. Assemble the Energy Recovery Curb Section a) Position the sides (Codes L and M) as shown in the drawing in FIGURE 8A. Attach the sides to the assembled curb section with sheetmetal screws. b) Attach the curb end (Code A).
  • Page 16 5.0 Mounting 5.4 Mounting on a Roof Curb (cont'd) (cont'd) 5.4.1 Downflow Roof Curbs for MAPS III Cabinets A, B, C (cont'd) ® 5.4.1.2 Roof Curb Option CJ34 for MAPS III&IV, Cabinets A, B, & C with ER Module (cont'd) ®...
  • Page 17 Description (cont'd) Component P/N's (cont'd) CAUTION: Before Divider (upper part) between Supply installation, recheck to 261667 261668 261678 and Return Air Ducts be sure that the curb 261408 261409 261426 Duct Divider Top Liner selected matches the 261405 261424 Duct Divider Bottom Liner unit ordered.
  • Page 18 5.0 Mounting 5.4 Mounting on a Roof Curb (cont'd) (cont'd) 5.4.2 Roof Curbs for Horizontal Airflow - Cabinets A, B, C (cont'd) 5.4.2.1 Horizontal Airflow Roof Curb Options CJ49 and CJ50 (cont'd) Assembly and Installation Instructions (cont'd) 6. Install supply air duct partition H) and return air duct (Code FIGURE 9D - Install the Large Duct...
  • Page 19 FIGURE 9G - Dimensions and Weights - Options CJ49 and CJ50 for MAPS ® Cabinets A, B, and C without an Energy Recovery Module Supply VIEW Duct Dimensions and Weight Cabinet 2-5/16 34-13/16 38-5/8 72-3/4 353 lbs inches 1753 1848 160 kg 22-1/2 2-5/16 49-13/16 53-5/8 72-3/4 434 lbs...
  • Page 20 5.0 Mounting 5.4.2.2 Roof Curbs for Horizontal Airflow (Options CJ54 & CJ53) for Cabinets A, B, and C WITH an Energy Recovery Module (cont'd) (cont'd) Assembly and Installation Instructions for Option CJ54 & CJ53, Curbs 5.4.2 Roof Curbs for with Energy Recovery Module (cont'd) Horizontal Airflow 3.
  • Page 21 6. Install end connector (Code P) and two liner supports (Code Q) (FIGURE 10D). a) Position end connector (Code P) as illustrated. Attach at both corners with hardware listed. Attach the "front" with sheetmetal screws. b) Position liner supports (Code Q) in the openings and attach with sheetmetal screws.
  • Page 22 5.0 Mounting 5.4.2 Roof Curbs for Horizontal Airflow - Cabinets A, B, C (cont'd) (cont'd) 5.4.2.2 Roof Curbs for Horizontal Airflow (Options CJ54 & CJ53) for Cabinets A, B, and C WITH an Energy Recovery Module (cont'd) FIGURE 10F - Install the Curb End with Duct Connections Y'S) and the...
  • Page 23 5.4.3 Duct Furnace If installing a MAPS gas heat Model RDCB, RDCC, RDDB or RDDC that includes a ® curb section with a duct furnace, the curb section with the duct furnace must be set on Curb Sections, the roof curb BEFORE placing the MAPS unit.
  • Page 24 5.0 Mounting 5.4 Mounting on a Roof Curb (cont'd) (cont'd) 5.4.3 Duct Furnace Curb Sections, Option JH30 for Cabinet C and Option JH25 for Cabinet B (cont'd) The duct furnace requires a separate gas line; gas connection is 1/2". See gas sup- Option JH30 Duct ply entrance location in the illustrations.
  • Page 25 FIGURE 11D - Duct Furnace Curb Heater Operation Transformer Pressure Heat Exchanger Assembly Switch, 196362 Control Panel Assembly Circuit Board, Control Panel Assy 195573 Limit Control Limit Control, Supply Entrance 148588 FIGURE 11E - Circuit Board LED Codes Control Status - Green LED Steady ON Normal Operation, No call for heat Fast Flash...
  • Page 26 5.0 Mounting 5.4 Mounting on a Roof Curb (cont'd) (cont'd) 5.4.4.Roof Curbs for MAPS III Models RCB, RDB, RDCB, RDDB, ® RECB, REDB Cabinet Size D (cont'd) Assembly and CAUTION: Before installation, recheck to be sure that the correct curb Installation Instructions has been ordered.
  • Page 27 3. Discharge Duct Supports - Position the two discharge duct side FIGURE 12C - Cross Section supports as shown in FIGURES 12A and 12D, and attach to cross of Roof Curb Installation supports as shown in STEP 12 in FIGURE 12B. MUST be 4.
  • Page 28: Rigging And Lifting The Maps ® Units

    5.0 Mounting 5.4 Mounting on a Roof Curb (cont'd) (cont'd) 5.4.4.Roof Curbs for MAPS Models RCB, RDB, RDCB, RDDB, ® RECB, REDB Cabinet Size D (cont'd) Installing Ductwork with D Cabinet The roof curb designed for the MAPS ® includes return air and discharge Option CJ3 MAPS ®...
  • Page 29 □ If setting on the roof curb or a duct furnace curb section, verify that sealant tape is applied to all top surfaces. □ IMPORTANT: Verify that the lift operator knows the correct placement of the unit so that the airflow orientation will be correct. When placing a unit on a horizontal flow curb, be sure the unit is being positioned as illustrated in FIGURE 13.
  • Page 30: Mechanical

    MAPS ® unit. Follow the lifting and mating instructions in the manual supplied with the energy recovery module (Form I-MAPS III&IV-ER). NOTE: Control information is in Form CP-MAPS-D15/16 that was shipped with this manual.
  • Page 31: Optional Power Exhaust Or Gravity

    6.2 Optional Power If ordered with Option PE, the system is factory equipped with a power exhaust for building air. The power exhaust blower, motor, and damper are assembled and at the Exhaust or factory. The power exhaust hood(s) is factory assembled and shipped in a separate Gravity Exhaust carton to be installed at the site.
  • Page 32: Outside Air Hoods

    6. Mechanical 6.3 Outside Air Hoods (cont'd) All inlet air hoods (Option AS16 or AS19) require field installation. Hood instructions differ for Cabinets A, B, C, and D. Follow the illustrated instructions that apply. NOTE: Other inlet air The outside air inlet hood is a weatherized hood with permanent aluminum filters, options may also require designed to be field assembled and installed around the horizontal inlet air opening of field installation.
  • Page 33 FIGURE 17A - Installation of Outside Air Hood, Option AS16, on Cabinet Sizes A Right Side and B without an optional power exhaust Top (Slide edge of top under cabinet top.) (For a cross-reference of cabinet size and model size, refer to the Appendix, pages 71- 72.) Center Left...
  • Page 34 6. Mechanical 6.3.1 Air Hoods for MAPS III A, B, & C Cabinets (cont'd) ® (cont'd) FIGURE 17D - Cabinet Size C with or without a power exhaust option - Attach the top filter filler, the two vertical filter supports and the two side filter angles. 6.3 Outside Air Attach the two inner filter spacers with wing screw receptacles.
  • Page 35 Components by STEP (FIGURES 18A - 18D) FIGURE 18B - STEP 1, Install First Section Used in Qty Description STEP 1a, 1 Top (Section 1) 222689 Reuse screws removed from cabinet top. FIGURE 18A 6 Sheetmetal Screws 11813 Edge of hood top MUST BE UNDER 1 Left Side (Section 1) 222697 the cabinet top.
  • Page 36 6. Mechanical 6.3 Outside Air Hood (cont'd) (cont'd) 6.3.2 Air Hood for MAPS III "D" Cabinet (cont'd) ® Installation Instructions for Inlet Air Hood Option AS16 for D Cabinet Models (cont'd) FIGURE 18C - STEP 2, Install Second Use sheetmetal screws.
  • Page 37: Duct Connections And Ductwork

    c) Install Side Gutters - Position the left side gutter on the left side of the cabinet. Line up the holes and attach with sheetmetal screws. Repeat with the right side gutter. d) Install Two Vertical Filter Supports - Position a vertical support as illustrated so that it is lined up with two holes in the top edge and two in the bottom.
  • Page 38: Condensate Drains

    6.0 Mechanical • Through Masonry Walls - No supply air duct should come in contact with masonry walls. Insulate around all air ducts through masonry walls with not less (cont'd) than 1/2" (13mm) of insulation. 1" (25mm) is recommended. 6.4 Duct •...
  • Page 39: Blowers, Belts, And Drives

    Improper trap design accounts for some condensate drainage system failures, but incorrect use and maintenance of condensate drain trap can also cause problems. The combination of airborne particles and moisture in the air handler can result in algae formation in the drain pan and trap. The trap must be cleaned regularly to avoid block- age that can slow or stop water flow, resulting in backup into the system.
  • Page 40 6.0 Mechanical 6.6 Blowers, Belts, and Drives (cont'd) (cont'd) CFM = (Input rate x .80) divided by (1.08 x temperature rise) The belt drive on these units is equipped with an adjustable pulley which permits adjustment of the blower speed. To make adjustments 1.
  • Page 41: Electrical And Wiring

    6.6.4 Blower Bearings The blower on systems with less than a 10 HP motor are permanently lubricated car- tridge ball bearings and do not require greasing. The bearings on systems with a 10HP motor are pillow block ball bearings and are equipped with a grease fitting. Refer to Form O-MAPS Cabinet ABC or O-MAPS Cabinet D for maintenance instructions.
  • Page 42 7.0 Electrical and Unit-Mounted Option BA6 ON/OFF Wiring (cont'd) Lockable Disconnect Switch (Non-fusible, available only Field-supplied or with 460/3 or 575/3 supply) Field-supplied or Option CP 7.2 Supply Wiring Option BA6 requires copper wiring with Disconnect Option CP ampacity based on 75°C maximum temp- Disconnect Switch (No Option BA6) Switch...
  • Page 43: Wiring Diagram, Unit Wiring Requirements

    Before initial startup, connect refrigerant pressure gauges to the compressor suc- tion and discharge lines. At startup, observe the gauges. If the suction pressure rises and discharge pressure drops, the compressor is operating in reverse and should be shut down. (After several minutes of operation in reverse, the compres- sor’s internal protector will trip.
  • Page 44: Condenser Fan Motors And Fans

    7.6 Condenser Fan Motors and Fans 7.0 Electrical and Wiring (cont'd) All condenser fan motors are direct-drive, statically and dynamically balanced, and permanently lubricated. Condenser fan motors are open dripproof motors with exter- nal sling protection against water penetration and have auto reset thermal overload protection.
  • Page 45: Controls

    FIGURE 23 - Optional Check Hot Gas Bypass Valve Setting - On the circuit with a hot gas bypass valve, connect a pressure gauge to the suction line and block the entering air to the evapora- Hot Gas Bypass Valve tor coil.
  • Page 46 8.0 Controls 8.1 Cooling/ Dehumidification/Heating Control (cont'd) (cont'd) FIGURE 25 - Airflow and Sensor (std & some optional) Locations - D Cabinet illustrated Dirty Filter Switch Sensor Dirty Filter Switch Sensor Condenser Section (entering air side) (leaving air side) Filters Coils Discharge Outside...
  • Page 47 sensors, discharge air sensors, etc.) that are connected to the controller be routed Maximum Sensor Wire to the unit in one of the following manners: Length for less than 1°F • In separate field-supplied conduits, isolated from 24 VAC controls and line volt- Signal Error age power to the unit, OR Wire...
  • Page 48 8.0 Controls 8.1 Cooling/ Dehumidification/Heating Control (cont'd) (cont'd) High Pressure Port - Attach tubing. FIGURE 28A - Low Pressure Port - Tubing Ports on the Leave open. High Pressure Transducer in Option or attach Data Sensor BE11 and Ductwork tubing. Port - Attach to Sensor Port ductwork.
  • Page 49: Supply Fan (Blower) Start/Stop Control

    CAUTION: The same ground reference has to be used for the CO sensor and for the control system. All "C" Cabinet systems have either 2" or 4" pleated disposable or permanent filters. D Option BE18, Dirty Cabinet systems have 4" pleated disposable or permanent filters. If dirty filter indicator Filter Switch Option BE18 was ordered, a dirty filter switch is in the electrical compartment with tub- FIGURE 28F -...
  • Page 50 8.0 Controls 8.1 Cooling/ Dehumidification/Heating Control (cont'd) (cont'd) 8.1.2 Optional Unit Monitoring Sensors (cont'd) Sensors for Optional Variable Frequency Drive Senses Option Components Installation and Function External DDC Controller, 0-5V VFC2 Requires a field supplied input source. Duct Static Pressure (0 to 2.5" VFC3 Transducer, P/N Factory installed to monitor duct pressure.
  • Page 51: Control Options

    Option VFC5, Building CO Sensor FIGURE 29C - CO2 Sensor, P/N 234820 The sensor (P/N 234820) used in Option VFC5 must be field mounted in the building and electrically connected to the I/Q controller expansion board (Option BHB6). Follow the manufacturer's instructions to mount the sensor. Connect the wires as instructed below.
  • Page 52 8.0 Controls 8.3 Control Options (cont'd) (cont'd) OPTIONAL WALL STAT FIGURE 30 - Wall Mounted Temperature +12V Sensor, P/N 222756, is Std in D16; Option CL77 RNET - if ordered with Control RNET + Option D15 Wall-mounted Setpoint Interface (Override) - The wall temperature sensor is stan- dard with D16 and allows the occupant to change the space temperature setpoints for cooling and heating.
  • Page 53: Optional Equipment

    9.0 Optional Optional Equipment (alphabetically listed) ........Where to Look Equipment Air Control Options, Option AR__ ..........Paragraph 9.1, pages 53-55 including Heat Duct Furnace Curb, Model JHUP (Option JH__) ......Paragraph 5.4.3, pages 23-25 Electric Heat Section (Models RECB/REDB/RECC/REDC) ..Paragraph 9.3, pages 63-64 Sections plus throughout this manual Energy Recovery, Option ER1 .....
  • Page 54 9.0 Optional 9.1 Inlet Air Options (cont'd) Equipment Outside Air & Return Air Dampers, Option AR25, AR2G, AR2H, or (cont'd) AR2K - If outside and return air motorized dampers were ordered, there are a variety of damper control options (Option GF). Some require field installation. If the damper NOTE: To verify control control sensing option requires field installation of components, the components are option selection, check the...
  • Page 55: Gas Heat - Rdcb, Rddb, Rdcc, Rddc

    OUT 2 output 2 (+) 0 VDC or 0 mA Status = NOT READY 9.2 Gas Heat - A system with a gas heat section is equipped with a Reznor combustion sys- ® CORE ® tem from 100 to 1,600 MBH input. The 80% thermal efficient furnace is power vented...
  • Page 56 9. Optional 9.2.1.2 Gas Piping and Pressures (cont'd) Equipment Furnaces for natural gas are orificed for operating with gas having a heating value of 1000 (±50) BTU per cubic ft. If the gas at the installation does not meet this specifica- (cont'd) tion, consult the factory for proper orifice.
  • Page 57 If natural gas supply pressure is too high, install a regulator in the supply line before it reaches the heater. The regulator should not allow greater than 1/2 psig (14" w.c.) to the factory installed valves, even in the off cycle. If natural gas supply pressure is too low, contact your gas supplier.
  • Page 58 9.2 Gas Heat - Models RDCB, RDDB, RDCC, RDDC (cont'd) 9.0 Optional Equipment 9.2.1 Gas Heat Module - Mechanical (cont'd) (cont'd) 9.2.1.2 Gas Piping and Pressures (cont'd) FIGURE 39 - Modulating Gas Control Manifold showing Two Furnaces - D Cabinet Sizes 1000, 1200, 1400, 1600 (See NOTE below.) Pressure Switch Dual,...
  • Page 59 Remove the bushing and connect a manometer to each 1/8" pressure tap. NOTE: A manometer (fluid-filled gauge) is recommended rather than a spring type gauge due to the difficulty of maintaining calibration. 2) Turn on the manual gas valve. Operate the unit with a call for heat. With the burner at full fire, check the manifold pressure.
  • Page 60 9.2 Gas Heat - Models RDCB, RDDB, RDCC, RDDC (cont'd) 9.0 Optional Equipment 9.2.1 Gas Heat Module - Mechanical (cont'd) (cont'd) 9.2.1.2 Gas Piping and Pressures (cont'd) High Altitude Operation for Modulating Gas Control Option AG70 High Altitude Operation Option AG70 modulating gas control system does not require a gas pressure adjust- ment derate at high altitude.
  • Page 61 Cabinets A and B have the same module but a unique ID plug for each heat section (Cabinet A Heat Sections 100, 150, 200; Cabinet B Heat Sections 250 and 300). The module has a three-digit LED display that indicates the active furnace operation. See the table below for a description of the heat mode identified by each LED display.
  • Page 62 9. Optional 9.2.2 Gas Heat Module Ignition Systems (cont'd) Equipment 2) Prepurge - The circuit board energizes the venter motor and waits for the pressure (cont'd) switch to close. When the pressure switch is proven closed, the circuit board begins the prepurge time.
  • Page 63: Redc

    Vent Extension Field Kit The gas-fired heat section vents combustion gas horizontally. A field-installed vent extension kit (P/N 221120) provides for attaching a vertical vent pipe that will allow the for MAPS Cabinet A, B, ® vent terminal to extend above the unit. For information, contact your distributor or see or C Form CP-MAPS-Vnt Ext on www.RezSpec.com.
  • Page 64: Commissioning And Startup

    9.0 Optional Equipment (cont'd) 9.3 lectric Heat - Models RECB, REDB, RECC, REDC (cont'd) Electric Heat Capacity and Sequence of Operation - Cabinet Sizes A, B, C Electric Heat Capacity Table Electric Heaters Sequence of Operation Size Size Cabinet 240/480/600V 208V 230/460/575V Stage...
  • Page 65: Checklist - Startup

    NOTE: If unit is equipped  Check the wiring for loose connections or damaged wire. Tighten connections. with an optional phase Replace damaged wiring. (See Paragraph 7.0 or the wiring diagram for replace- loss/phase reversal control ment wiring requirements.) (Option PL4) and does ...
  • Page 66 10.0 Commissioning and Startup (cont'd) 10.3 Checklist Prior Power Supply Voltage Phasing to Startup Blower Rotation - If blower rotation is not correct, reverse by interchanging two wires (cont'd) on the 3-phase supply connection to the blower motor. Compressors 10.3.1 Gas Heat □...
  • Page 67 STEP 2) From Temperature/Pressure Conversion Chart, APPENDIX, page 72, convert Measured Pressure (STEP 1) to ________°F (°C) STEP 3) Subtract Measured Temperature (STEP 1) from Temperature from Conversion Chart (STEP 2) ________°F (°C) - ________°F (°C) = ________°F (°C) degrees of Subcooling Recommended subcooling with outdoor temperature range of 68 to 95°F (21 to 35°C) is 10 to 12 degrees F (5.6 to 6.7 degrees C).
  • Page 68 10.0 Commissioning and Startup (cont'd) 10.3 Checklist 10.3. (cont'd) 2 Startup Checklist for Systems with Gas Heat Module Startup The installation must obtain a temperature rise within the range specified on (cont'd) the furnace rating plate. Maximum temperature rise for this unit is 100°F. CFM = (Input rate x .80) divided by (1.08 x temperature rise) 1.
  • Page 69: Checklist After Startup

    2. Perform Air Balance Procedure on the Energy Recovery Supply Fan a) On the MAPS unit, open the control panel door (see FIGURE 15, page 30). ® On the wall next to the blower compartment, locate the pressure tap. Connect a manometer at the pressure tap.
  • Page 70: Maps

    STARTUP Form for Reznor MAPS Units ® ® STARTUP FORM Reset Form Print Form Applies to: MAPS III&IV Model Series RCB, RDB, RDCB, RDDB, RECB, REDB, RCC, RDC, RDCC, RDDC, RECC, and REDC Job Name Contractor Street Contact Phone City, ST, Zip...
  • Page 71: Appendix

    APPENDIX Cross-Reference by Model/Size and Cabinet Size A, B, C or D Model RDCB, RDDB, RDCC, and RDDC by Cabinet Size and Gas Heat Section Size DX Cooling Models RCB and RCC and Gas Heat Section Size Model Model DX with Reheat RDCB RDCC -100 -150 -200 -250 -300 -400 -500 -600 -700 -800 -1000 -1200 -1400 -1600...
  • Page 72: Superheat And Subcooling

    Model RECB, REDB, Electric Heat Section Model Model RECC, and REDC by RECB RECC -10S -15S -20S -24S Electric Heat Module and Cabinet Size Electric Heat Section Model RECB Electric Heat Section Model Model REDB REDC -10S -15S -20S -24S Electric Heat Section Model REDB...
  • Page 73: Wiring Diagram Option Identification

    Wiring Diagram Option Identification The Option Codes for these electrical options are shown on the wiring diagram. Option Brief Description Installed Option Brief Description Installed AG70 Modulating Gas Control Factory EFC4 Building Pressure Control for EFD1 (for Opt ER1_) Fld & Fctry 208/3 Supply Voltage Factory EFC7...
  • Page 74: References

    Installation - Roof Curbs Options CJ3, CJ31, CJ34, CJ49, CJ50, CJ53, CJ54 .... See Form I-OPT-C Installation - Outside Air Hood Options AS16 and AS19 ..........See Form I-OPT-WH Operation/Maintenance/Service - MAPS Cabinets A, B, C ..See Form O-MAPS III&IV Cabinets A/B/C ® Operation/Maintenance/Service - MAPS Cabinet D......
  • Page 75: Index

    Index DSI Integrated Control Module 62 Duct Connections 37 Accessories 4 Pressure/Temperature Chart 72 Duct Furnace Curb Heater Operation 25 Actuator and Ball Valve in Modulating Gas Duct Furnace Installation 24 Control Option AG70 58 Rating Plate 5 Air Balance 69 Receiving 4 Airflow 46 Electrical 41...
  • Page 76: Installation Record

    BUILDING OWNER OR MAINTENANCE PERSONNEL: For questions on service or repair • Call (855) TNB-HVAC {855-862-4822}. • ® For Sales or Specification needs, contact your Reznor Representative by calling 800-695-1901. Reznor ® 150 McKinley Avenue Mercer, PA 16137 www.ReznorHVAC.com; (800) 695-1901 ©2014 Reznor LLC, All rights reserved.

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