Modine Manufacturing DBS/DCS Installation And Service Manual
Modine Manufacturing DBS/DCS Installation And Service Manual

Modine Manufacturing DBS/DCS Installation And Service Manual

Indirect gas-fired indoor separated combustion make-up air units

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indirect gas-fired indoor separated combustion make-up air units
WARNING
1. Improper installation, adjustment, alteration,
service or maintenance can cause property
damage, injury or death, and could cause
exposure to substances which have been
determined by various state agencies
to cause cancer, birth defects or other
reproductive harm. Read the installation,
operating and maintenance instructions
thoroughly before installing or servicing this
equipment.
2. To prevent premature heat exchanger failure,
do not locate ANY gas-fired appliances
in areas where corrosive vapors (i.e.
chlorinated, halogenated or acid) are present
in the atmosphere.
AVERTISSEMENT
1. Une installation, un réglage, une altération,
une réparation ou une maintenance
impropre risque de causer des dommages,
des blessures ou la mort, et d'engendrer
une exposition à des substances dont
certains États ont déterminé qu'elles
étaient cancérogènes ou pouvaient causer
des malformations à la naissance et des
problèmes de reproduction. Lisez bien les
instructions d'installation, d'utilisation et de
maintenance avant d'installer ou de réparer
cet appareil.
PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.
INSTALLATION AND SERVICE MANUAL
THIS MANUAL IS THE PROPERTY OF THE OWNER.
Models approved for use in California by the CEC
AVERTISSEMENT
2. Pour éviter la panne prématurée de
l'échangeur thermique, ne placez AUCUN
appareil à gaz à des endroits où les vapeurs
corrosives (chlorées, halogénées ou acides)
sont présentes dans l'atmosphère.
.
FOR YOUR SAFETY
IF YOU SMELL GAS:
1. Open windows.
2. Do not try to light any appliance.
3. Don't touch electrical switches.
4. Extinguish any open flame.
5. Immediately call your gas supplier.
POUR VOTRE SÉCURITÉ
Si vous sentez une odeur de gaz:
1. Ouvrez les fenêtres.
2. Ne tentez d'allumer aucun autre appareil.
3. Ne touchez pas aux interrupteurs
électriques.
4. Éteignez toute flamme nue.
5. Appelez immédiatement votre compagnie de
gaz.
5-594.11
5H0768560001
December, 2023
Models DBS/DCS
IBS/ICS

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  • Page 1 5-594.11 5H0768560001 December, 2023 INSTALLATION AND SERVICE MANUAL indirect gas-fired indoor separated combustion make-up air units Models DBS/DCS IBS/ICS Models approved for use in California by the CEC AVERTISSEMENT 2. Pour éviter la panne prématurée de l’échangeur thermique, ne placez AUCUN appareil à...
  • Page 2: Table Of Contents

    FOR YOUR SAFETY INSPECTION ON ARRIVAL Inspect unit upon arrival. In case of damage, report it immediately to transportation company and your local The use and storage of gasoline or other factory sales representative. flammable vapors and liquids in open Check rating plate on unit to verify that power supply meets containers in the vicinity of this appliance is available electric power at the point of installation.
  • Page 3: Special Precautions

    Modine-approved service replacement parts. A complete replacement parts list may be obtained by contacting HAZARD INTENSITY LEVELS Modine Manufacturing Company. Refer to the rating plate on the appliance for complete appliance model number, DANGER: Indicates an imminently hazardous situation serial number, and company address. Any substitution of which, if not avoided, WILL result in death or serious injury.
  • Page 4 SPECIAL PRECAUTIONS WARNING AVERTISSEMENT 1. Failure to follow proper lifting instructions and applicable 1. Le non-respect d’une bonne procédure de levage et des safety procedures could result in property damage, serious procédures de sécurité qui s’appliquent pourrait mener à injury, or death. Lifting should only be done by a qualified des dommages matériels ou à...
  • Page 5: Metric) Conversion Factors

    SPECIAL PRECAUTIONS / SI (METRIC) CONVERSION FACTORS CAUTION IMPORTANT 1. Installation must conform with local building codes or 1. Pour installation uniquement dans des endroits non in the absence of local codes, with Part 7, Venting of accessibles au public. Equipment, of the National Fuel Gas Code, ANSI Z223.1 2.
  • Page 6: Unit Location

    UNIT LOCATION UNIT LOCATION Units installed downstream of refrigeration systems, or exposed to inlet air temperatures of 40°F or less, may DANGER experience condensation, therefore, provisions should be made for disposal of condensate. Means have been provided in the bottom pan of the unit to accommodate a Appliances must not be installed where they may be exposed condensate drain line connection flange.
  • Page 7: Unit Suspension

    UNIT LOCATION / UNIT MOUNTING METHODS Figure 7.1 - Combustible Material Clearances Tableau 7.2 - Dégagements recommandés pour l'entretien Model Size Access Side (A) Taille de Côté porte Côté opposé à la 100 thru 175 1" (2.54 cm) modèle d'accès porte Dessus 200 thru 960...
  • Page 8: Floor Mounted Units

    UNIT MOUNTING METHODS Figure 8.1 - Unit Suspension Method Figure 8.2 - Floor Mounted Unit Anchor Bolt Locations ELECTRICAL SUSPENSION SECTION RODS DOOR 5/8” Dia. (4) BLOWER SECTION DOOR Figure 8.2 - Emplacements des boulons d’ancrage HEATER SERVICE pour appareil installé sur le plancher DOOR (1) 3/4"...
  • Page 9 UNIT MOUNTING METHODS Table 9.1 - Floor Mounted Unit Anchor Bolt Tableau 9.1 - Emplacements des boulons d’ancrage Locations pour appareil installé sur le plancher Model Blower Type Type de Digit 2 Size (Digit 16) Taille de ventilateur chiffre modèle chiffre) 86.37"...
  • Page 10: Unit Lifting

    UNIT LIFTING UNIT LIFTING Refer to the applicable sections to make Venting, Gas Connec tions, Electrical Connections, and Cooling Coil WARNING Connections. Make final unit connections to the electric power supply and remote control circuits. Caulk all utility line clearance holes on the unit after connections are Failure to follow proper lifting instructions and applicable completed.
  • Page 11: Duct Connections / Utility Connections

    DUCT CONNECTIONS / UTILITY CONNECTIONS DUCT CONNECTIONS Figure 11.3 - Recommended Field Installed Dis- charge Duct Configurations for Blower Package Units The furnace discharge (units with Model Digit 2=B) is designed to accept straight ductwork (see Figure 11.1). DIMENSION “B” SHOULD NEVER The blower section end and bottom openings (all units) and BE LESS THAN 1/2 OF DIMENSION “A”...
  • Page 12: Installation - Venting

    INSTALLATION - VENTING UNIT INSTALLATION The separated combustion duct furnaces must be vented with the proper passageway as described in these instructions to Refer to the applicable sections to make Venting, Gas convey flue gases from the unit or the vent connector to the Connec tions, Electrical Connections, and Cooling Coil outside atmosphere.
  • Page 13 INSTALLATION - VENTING A5. A minimum of 12" straight pipe is recommended from the A11. All seams and joints of un-gasketed single wall pipe flue outlet before turns in the vent pipe. must be sealed with metallic tape (3M aluminum foil tapes 433 or 363 are acceptable) or silastic suitable for A6.
  • Page 14: Section B - Vertical 2-Pipe Vent System Installation

    INSTALLATION - VENTING Table 14.1 - Vent Termination Clearances Section B - Vertical 2-Pipe Vent System Installation Structure Minimum Clearances for Vent Terminal Location B1. This section applies to vertically vented 2-pipe (one combustion air inlet pipe and one vent pipe) vent systems Forced air inlet within 10 feet 3 feet above and is in addition to “Section A - General Instructions - All...
  • Page 15: Section C - Horizontal 2-Pipe Vent Installation

    INSTALLATION - VENTING Figure 15.1 - Vertical Venting - 2 Pipes Flat Roof C7. When horizontal vents pass through a combustible wall (up to 8 inches thick), the vent passage must be constructed and insulated as shown in Figure 15.3. LISTED VENT TERMINAL DISTANCE “D”...
  • Page 16 INSTALLATION - VENTING For Vertically Vented Units (Refer to Figure 16.1): D5. The adapter box can be mounted flush to the wall (for horizontal kits) or to the ceiling (for vertical kits). The box 100-175 200-400 Model Size (Digits 4-6) can also be offset from the wall or ceiling by using field Kit Part Number 33356...
  • Page 17 INSTALLATION - VENTING D10. Place this assembly (the adapter box, vent pipe and combustion air pipe) through the wall or roof and verify that the distance requirements as defined in Step D7 are met. Securely attach the assembly building. D11. From outside the building, caulk the gap between the combustion air intake pipe and the building penetration.
  • Page 18: Installation - Gas Connections

    INSTALLATION - GAS CONNECTIONS Gas Connections (not individual furnace serial plates) to determine the gas heating capacity in Thousands of Btu/hr (MBH). The WARNING Model ID plate is located on the blower section electrical compartment door. See Figure 18.1 for an example Model ID plate.
  • Page 19 INSTALLATION - GAS CONNECTIONS Table 19.1 - Gas Pipe Capacities - Natural Gas j Table 19.3 - Burner Orifice Sizing and Gas Consumption Capacity in MBH by Nominal Pipe Diameter Pipe Gas Type Length (ft) 1∕2” 3∕4” 1” 1 1∕4” 1 1∕2” 2”...
  • Page 20 Equation 20.1 - Manifold Pressure for Gas Heating Values Different Than Shown in Table 20.1 The standard ratings for Models DBS/DCS are certified for elevations up to 2,000 feet above sea level. Operation at elevations above 2,000 feet requires ratings be reduced 4% for each 1,000 feet above sea level per ANSI Z223.1.
  • Page 21: Installation - Electrical Connections

    INSTALLATION - ELECTRICAL CONNECTIONS Electrical Connections Two copies of the job specific wiring diagram are provided with each unit, one located in the duct furnace electrical WARNING junction box and one in the electrical section of the unit. Refer to this diagram for all wiring connections. External electrical connections to be installed include: 1.
  • Page 22 INSTALLATION - ELECTRICAL CONNECTIONS Figure 22.1 - Terminal Strip Wiring (Model Digit 12=9) 11. The power supply to the unit must be protected with a fused or circuit breaker disconnect switch. Refer to the Factory Mounted Option Locations (Figure 33.1) for the factory mounted disconnect switch location and then Oval Holes for Wiring...
  • Page 23 THIS PAGE INTENTIONALLY LEFT BLANK 5-594.11...
  • Page 24: Installation - Cooling Coil Units

    INSTALLATION - COOLING COIL UNITS Cooling Coil Units Condensate Drain Pan Trap Models with a cooling section can be provided with a factory The condensate drain line needs to include a P-trap immediately installed direct expansion (DX) evaporator or the coil can be downstream of the connection to the unit.
  • Page 25 INSTALLATION - COOLING COIL UNITS Table 25.1 - Cooling Coil Performance Limits Inspect the refrigerant distributor and verify that the nozzle is in place. Single Circuit Dual Circuit All field brazing and welding should be performed using Cooling Model Cooling Area Area high quality materials and an inert gas purge...
  • Page 26: Start-Up Procedure

    START-UP PROCEDURE Start-Up Procedure 12. For units with a return air damper, the return air damper linkage needs to be adjusted. Refer to Damper Linkage IMPORTANT Adjustment. 13. Check to make sure that the damper opens properly without binding. 1. To prevent premature heat exchanger failure, observe heat exchanger tubes by looking at the heat exchanger through 14.
  • Page 27: Pilot Burner Adjustment

    START-UP PROCEDURE Pilot Burner Adjustment Figure 27.2 - Checking Manifold Pressure with “U” Tube Manometer The pilot burner is orificed to burn properly with an inlet pressure of 6-7" W.C. on natural gas and 11-14" W.C. on propane gas. Final adjustment must be made after installation. If the pilot flame is too long or large, it may cause soot and/or impinge on the heat exchanger causing failure.
  • Page 28 START-UP PROCEDURE Check/Adjust Pressure for the Modulating Valve For Units with Model Digit 12=9: The high fire gas pressure needs to be adjusted first, followed This section only applies to units with Electronic Modulation gas by the low gas pressure. For multiple furnace units, this is only controls (Model Identification Digit 12=4, 7, or 9).
  • Page 29: Air Shutter Adjustment

    START-UP PROCEDURE Blower Adjustments Once the setting of the modulating valve has been completed, replace the valve cover removed earlier. If blower fan speed changes are required, adjust motor sheave Move the field installed manual shut-off valve to the “OFF” as follows: position, remove the manometer, and replace the 1/8"...
  • Page 30: Lubrication Recommendations

    START-UP PROCEDURE Lubrication Recommendations Furnace Control Operating Sequence The blower can be provided with either spider or pillow block IMPORTANT bearings. Spider bearings are permanently lubricated and do not require lubrication. Pillow block bearings are shipped greased from the factory but will require lubrication. The bearings should To prevent premature heat exchanger failure, with all control systems, a blower starting mechanism must be provided so be checked and lubricated before each heating season but a...
  • Page 31 START- UP PROCEDURE The control operating sequence for all furnaces is as follows: • Modulating with Modine Control System (Model Digit 12=9): The main gas valve is opened 100% and The thermostat calls for heat or is enabled by the BMS. the burner firing rate is modulated between 40% and The power exhauster relay is energized starting the 100% full fire.
  • Page 32: Variable Air Volume Applications

    START- UP PROCEDURE Variable Air Volume Applications Table 32.1 - Extended Range VAV Minimum Airflow Units may be supplied with variable frequency drives for Minimum Airflow (CFM) applications where variable air volume is required. The minimum High ATR Low ATR air flow may be reduced to as low as 30% of the full speed air (Digit 10=H) (Digit 10=H)
  • Page 33: Component Locations

    COMPONENT LOCATIONS Figure 33.1 - Factory Mounted Option Locations Discharge Thermostat (not shown) Low Gas Pressure Switch High Gas Pressure Switch Power Exhauster Assembly Timed Freeze Protection Ignition Controller Differential Pressure Switch Control Relay Time Delay Relay 10. Furnace Low Voltage Terminal Strip 11.
  • Page 34: Component Descriptions

    COMPONENT DESCRIPTIONS COMPONENT DESCRIPTIONS (2) Low Gas Pressure Switch – (OPT) The switch monitors the gas pressure upstream of all the gas All units include the standard (STD) features. The unit must be controls and disables the ignition controller and combination reviewed to determine the optional (OPT) features that may gas valve if low gas pressure is experienced.
  • Page 35 COMPONENT DESCRIPTIONS (6) Ignition Controller – (STD) (13) Control Step Down Transformer – (STD) The ignition controller is factory installed in the duct furnace The control step down transformer is located in the duct furnace electrical junction box with the spark ignitor and sensor located electrical junction box.
  • Page 36 COMPONENT DESCRIPTIONS Figure 36.1 - Dead Front Disconnect Switch (22) Return Air Fire Stat – (OPT) Assembly The return air fire stat is factory installed in the electrical section with the sensor in the return air stream. In case of elevated temperatures in the return air stream, the manual reset switch BLOWER SECTION ELECTRICAL...
  • Page 37 COMPONENT DESCRIPTIONS (27) Fresh Air Damper – (OPT) Figure 37.1 - Two-Position Damper Actuator Limiter When a fresh air damper is supplied with the unit, the damper is factory installed in the blower section. The fresh air damper is used as an outside air shut-off damper, so ultra low leak, Class I leakage resistance (less than 4 CFM/ft²...
  • Page 38 COMPONENT DESCRIPTIONS (32) Damper to Damper Linkage – (OPT) (37) Convenience Outlet – (OPT) Units with fresh and return air dampers include a damper WARNING actuator that controls the fresh air damper. The return air damper position is controlled by the fresh air damper through the connecting rod.
  • Page 39 COMPONENT DESCRIPTIONS (39) Dirty Filter Switch – (OPT) “RESET” button must be depressed before the blower can operate. The dirty filter pressure switch is factory installed in the blower electrical section. The switch monitors the pressure differential The contactor module includes one (1) normally open auxiliary between the two sides of the filters.
  • Page 40 COMPONENT DESCRIPTIONS (43) Warm-Up Stat – (OPT) (49) High Limit Switch A warm-up stat can be provided with Air Control options EA, The high limit switch is factory installed in the duct furnace GG, or GH (Digits 20 & 21) and factory installed in the electrical electrical junction box.
  • Page 41 COMPONENT DESCRIPTIONS For Modine Control System Units Only (Model Digit 12=9) The following items may be included with units configured with the Modine Control System option: (56) Carel pCOOEM+ Microprocessor Controller The Modine Controls System utilizes a Carel pCOOEM+ programmable microprocessor controller that is factory installed in the duct furnace electrical section.
  • Page 42: General Performance Data

    GENERAL PERFORMANCE DATA Table 42.1 - General Performance Data Blower Style/Size Temperature Rise (°F) Model Size Btu/Hr Btu/Hr Minimum Maximum (Digits 4-6) Input j Output j CFM k (Digit 16) Size Maximum Minimum C or D 3000 100,000 81,000 E or F 12-12 1500 3750...
  • Page 43 GENERAL PERFORMANCE DATA Table 43.1 - Air Temperature Rise jkl Air Temperature Rise Through Unit (°F) Btu/Hr Btu/Hr Model Size Input j Output j 100,000 81,000 3,750 1,875 1,500 1,250 1,071 125,000 101,250 4,688 2,344 1,875 1,563 1,339 1,172 1,042 150,000 121,500 5,500...
  • Page 44: Option & Accessory Pressure Drop Data

    OPTION & ACCESSORY PRESSURE DROP DATA Table 44.1 - Option & Accessory Pressure Drop Tables (in ''W.C.) j All Units Weatherproof Unit Only Unit Size Digit 16 0.01 0.02 0.02 0.02 0.01 0.06 0.02 0.08 0.00 0.03 0.01 1000 0.02 0.02 0.03 0.04...
  • Page 45: Blower Performance Data

    BLOWER PERFORMANCE DATA Table 45.1 - Unit Performance Tables jk Total Static Pressure, ''W.C. 0.25 0.50 0.75 1.00 1.25 1.50 2.00 2.50 3.00 Digit Temp. Unit Size Rise BHP RPM BHP RPM BHP RPM RPM BHP RPM BHP RPM BHP RPM BHP 100°F / - 0.15...
  • Page 46 BLOWER PERFORMANCE DATA Table 46.1 - Unit Performance Tables jk Total Static Pressure, ''W.C. 0.25 0.50 0.75 1.00 1.25 1.50 2.00 2.50 3.00 Digit Temp. Unit Size Rise BHP RPM BHP RPM BHP RPM BHP RPM 100°F / 120°F 1852 0.26 0.39 0.54...
  • Page 47 BLOWER PERFORMANCE DATA Table 47.1 - Unit Performance Tables jk Total Static Pressure Inches "W.C. Unit Temp 0.25 0.50 0.75 1.00 1.25 1.50 2.00 2.50 3.00 Size Digit 16 Rise CFM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM 120°F / - 3086 0.62...
  • Page 48: Blower Sheave Assembly Data

    BLOWER SHEAVE ASSEMBLY DATA Adjusting the Blower Drive Sheave Setting Example: Determine motor sheave turns open for a unit operating at 4000 All units include a sheave assembly indicated by Digit 19 of CFM with a design external static pressure (ESP) of 0.60"W.C. the model nomenclature.
  • Page 49 BLOWER SHEAVE ASSEMBLY DATA Table 49.1 - S heave Assembly Data Blower RPM by Sheave Turns Open Setting (Approx.) Blower Type Sheave Digit 16 Digit 19 RPM Range A, B 656-1001 1001 978-1265 C, D, E 1265 1236 1208 1179 1150 1122 1093...
  • Page 50: Dimensions - Unit

    DIMENSIONS - UNIT Figure 50.1 - Separated Combustion Blower Package Unit (Model Digit 2=B, Digit 16=A through H) o Qty (4) Drill Locator Dimples for Field Drilled Electrical Conduit Entry Holes (spaced 2.0" apart) 500 - 800 Model Shown Figure 50.2 - Separated Combustion Cooling Package Unit (Model Digit 2=C, Digit 16=A through H) o 108.94 23.95 33.84...
  • Page 51 DIMENSIONS - UNIT Figure 51.1 - Separated Combustion Blower Package Unit (Model Digit 2=B, Digit 16=I,J,K, or L) p 500 - 800 Model Shown Figure 51.2 - Separated Combustion Cooling Package Unit (Model Digit 2=C, Digit 16=I,J,K, or L) p Table 51.1 - Indoor Separated Combustion Unit Dimensions(Model Digit 2=B or C, Digit 16=I,J,K, or L) p Dimensions (Inches) Model Blower Type Qty.
  • Page 52 DIMENSIONS - UNIT Figure 52.1 - Unit Base Dimensions j (TO END OF UNIT) 0.63 2.36 0.75" SUSPENSION HANGING LOCATIONS (TYPICAL 4 CORNERS) RETURN OPENING (OPTIONAL) (Inside) SUSPENSION 24.00 POINT (Inside) SUSPENSION Suspension POINT Point LIFTING POINTt LIFTING POINTt 4.35 1.45 Table 52.1 - Indoor Separated Combustion Blower Package Dimensions for Model Digit 2=B j Dimensions (Inches)
  • Page 53: Dimensions - Cooling Coils

    DIMENSIONS - COOLING COILS Figure 53.1 - DX Coil Drawing l Rows Airflow Direction TOP VIEW Distributor Inlet (Liquid Line) Connection(s) (Second Inlet on Dual Coil for Right Hand Units Circuit Coils) (Digit 9 = R) Headers on opposite side for Left Hand Units SIDE VIEW FRONT VIEW Airflow...
  • Page 54: Weights

    WEIGHTS Table 54.1 - Unit Weights j Base Unit Dampers Insulation Double Wall Liners Digit 2 Digit 2 Digit 2 Model Blower Type Fresh Air Fresh & Size (Digit 16) Motor Filters Only Return Air 100/125 150/175 200/225 250/300 E,F,G, or H 250/300 I, J, or K 350/400...
  • Page 55: Maintenance

    MAINTENANCE Blower Assembly WARNING The blower assembly includes the bearings, drive sheaves and belts. Blower bearings should be checked and lubricated based When servicing or repairing this equipment, use only on the blower manufacturer’s recommendations. Bearings factory-approved service replacement parts. A complete should also be checked for any unusual wear and replaced if replacement parts list may be obtained by contacting Modine needed.
  • Page 56: Cooling Coil Maintenance

    MAINTENANCE Cooling Coil Maintenance Gas Piping & Controls Periodically, inspect the coil for signs of corrosion The gas valves and piping should be checked annually for and leaks. Repair and replacement of the coil and the general cleanliness and tightness. connecting piping, valves, etc., must be performed as The gas controls should be checked to insure that the unit is needed by a qualified technician.
  • Page 57: Burner And Pilot Assembly Removal

    MAINTENANCE Burner and Pilot Assembly Removal To remove the burner (Refer to Figure 57.1) Shut off gas and electric supply. Disconnect the pilot supply line from the gas valve. Disconnect the ignition cable from the ignition controller (located in the electrical junction box). Feed the cable through the bushing in the bottom of the electrical junction box.
  • Page 58: Service & Troubleshooting

    SERVICE & TROUBLESHOOTING ATTENTION WARNING Ne tentez pas de réutiliser un composant mécanique ou When servicing or repairing this equipment, use only électrique qui a été mouillé. Ces composants doivent être factory-approved service replacement parts. A complete remplacés. replacement parts list may be obtained by contacting Modine Manufacturing Company.
  • Page 59 SERVICE & TROUBLESHOOTING (CONTINUED) Troubleshooting (Continued) Trouble Possible Cause Possible Remedy Floating Flames (See Figure 60.2) Insufficient primary air. Increase primary air. Main pressure set too high. Adjust to a maximum of 14” W.C. Orifice too large. Check orifice size with those listed on the serial plate.
  • Page 60 SERVICE & TROUBLESHOOTING Figure 60.1 - Lifting Flame Condition Figure 60.2 - Floating Flame Condition Figure 60.3 - Flame Rollout Appearance 5-594.11...
  • Page 61: Start-Up Checklist

    START-UP CHECKLIST Job Name: Date: Address: Model No.: City & State: Order No.: Start-Up Check List “ALL ITEMS MUST BE CHECKED” Serial No.: 1. All shipping straps, braces, tie downs removed? ____ Yes ___ No 2. Unit installed level and secure? ____ Yes ___ No 3.
  • Page 62: Model Designations

    MODEL DESIGNATIONS Model Identification Figure 62.1 - Furnace Serial Plate Location Duct furnace/make-up air units contain an ETL/ETL Canada certified indoor duct furnace. This duct furnace is combined with either a blower section or a blower and cooling section to make a complete make-up air or heating/ventilating/ cooling SERIAL PLATE...
  • Page 63: Model Nomenclature For System Units

    MODEL NOMENCLATURE FOR SYSTEM UNITS Model Nomenclature 4 5 6 19 20 21 1 - Product Type (PT) 15 - Transformer (TR) D or I - Indoor Indirect Fired Heating & Make-Up Air Unit 1 - 40 VA 4 - 250 VA 2 - 75 VA 0 - None 3 - 150 VA...
  • Page 64 As Modine Manufacturing Company has a continuous product improvement program, it reserves the right to change design and specifications without notice. Modine Manufacturing Company 1500 DeKoven Avenue Racine, WI 53403 Phone: 1.800.828.4328 www.modinehvac.com 5-594.11 © Modine Manufacturing Company 2023...

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