Modine Manufacturing IFS Installation And Service Manual

Manual is about: gas-fired indoor separated combustion duct furnaces

Summary of IFS

  • Page 1

    Installation and service manual gas-fired indoor separated combustion duct furnaces model ifs air 5-593.10 5h0768550003 this manual is the property of the owner. Please be sure to leave it with the owner when you leave the job. Inspection on arrival 1. Inspect unit upon arrival. In case of damage, r...

  • Page 2: Danger

    Air 5-593.9 2 danger appliances must not be installed where they may be exposed to a potentially explosive or flammable atmosphere. Special precautions the installation and maintenance instructions in this manual must be followed to provide safe, efficient and trouble-free operation. In addition, pa...

  • Page 3: Danger

    Air 5-593.9 3 model access size side (a) 75 thru 175 1" 200 thru 400 2" unit location location recommendations 1. When locating the furnace, consider general space and heating requirements, availability of gas and electrical supply, and proximity to vent locations. 2. Unit must be installed on the p...

  • Page 4: Important

    Air 5-593.9 4 direction of airflow select proper direction of airflow. For models in which the 10th digit of the model number is an “l” for low temperature rise, the airflow direction is fully reversible without modification to the duct furnace. See airflow reversal note. If the unit is provided wit...

  • Page 5: Caution

    Air 5-593.9 5 section a - general instructions - all units a1. If the heater being installed is replacing existing equipment and using the existing vent system from that equipment, inspect the venting system for proper size and horizontal pitch, as required in the national fuel gas code ansi z223.1 ...

  • Page 6

    Air 5-593.9 6 a11. All seams and joints of un-gasketed single wall pipe must be sealed with metallic tape (3m aluminum foil tapes 433 or 363 are acceptable) or silastic suitable for temperatures up to 400°f. Wrap the tape two full turns around the vent pipe. One continuous section of double wall ven...

  • Page 7

    Air 5-593.9 7 rise x (in) roof pitch min height h (ft) j 0-6 flat to 6/12 1.00 6-7 6/12 to 7/12 1.25 7-8 7/12 to 8/12 1.50 8-9 8/12 to 9/12 2.00 9-10 9/12 to 10/12 2.50 10-11 10/12 to 11/12 3.25 11-12 11/12 to 12/12 4.00 12-14 12/12 to 14/12 5.00 14-16 14/12 to 16/12 6.00 16-18 16/12 to 18/12 7.00 1...

  • Page 8: Caution

    Air 5-593.9 8 c10. Maintain a 1/4" per foot downward slope away from the heater and place a drip leg with clean out near the exit of the vent as shown in figure 8.1, or allow the condensate to drip out the end. C11. For a vent termination located under an eave, the distance of the overhang must not ...

  • Page 9

    Air 5-593.9 9 installation - venting d5. The adapter box can be mounted flush to the wall (for horizontal kits) or to the ceiling (for vertical kits). The box can also be offset from the wall or ceiling by using field supplied brackets. When mounting the box, consider serviceability and access to th...

  • Page 10: Important

    Air 5-593.9 10 gas connections 1. Installation of piping must conform with local building codes, or in the absence of local codes, with the national fuel gas code, ansi z223.1 (nfpa 54) - latest edition. In canada, installation must be in accordance with can/cga-b149.1 for natural gas units and can/...

  • Page 11

    Air 5-593.9 11 installation equation 11.1 - manifold pressure for gas heating values different than shown in table 11.1 j values shown are for 3.5" w.C. Manifold pressure for natural gas and 10.0" w.C. For propane gas. If the local utility supplies gas with a different btu/ft3 value, use equation 11...

  • Page 12: Important

    Air 5-593.9 12 1. Installation of wiring must conform with local building codes, or in the absence of local codes, with the national electric code ansi/nfpa 70 - latest edition. Unit must be electrically grounded in conformance to this code. In canada, wiring must comply with csa c22.1, part 1, elec...

  • Page 13

    Air 5-593.9 13 start-up procedure pilot burner adjustment 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, but final adjustment must be made after installation. If the pilot flame is too long or large, it is possible tha...

  • Page 14: Important

    Air 5-593.9 14 air shutter adjustment proper operation provides a soft blue flame with a well-defined inner core. A lack of primary air will reveal soft yellow-tipped flames. Excess primary air produces short, well-defined flames with a tendency to lift off the burner ports. For both natural and pro...

  • Page 15

    Air 5-593.9 15 start-up procedure signal (8000 to 12000 ohms) in the thermostat is converted by the modulating amplifier to an inverted dc voltage (0vdc for high fire to 12 vdc for low fire). The output voltage is applied to the modulating gas valve to control the gas flow to the main burner. The mo...

  • Page 16

    Air 5-593.9 16 start-up procedure gas control options the unit must be reviewed to determine if any of the listed gas control options were supplied. J time delay relay the time delay relay is factory installed in the duct furnace electrical junction box. The standard duct furnace is provided for ins...

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    Air 5-593.9 17 this page intentionally left blank.

  • Page 18

    Air 5-593.9 18 performance table 18.1 - air temperature rise jkl j all duct furnaces are designed for a maximum allowable static pressure of 3.0" w.C. On the heat exchanger. Figure 18.1 - recommended unit configurations j 202,500 202,500 162,000 162,000 162,000 2,308 cfm 2,308 cfm 5,769 cfm j rating...

  • Page 19

    Air 5-593.9 19 dimensions figure 19.1 - unit dimensions (all dimensions in inches) dimensions 75 100/125 150/175 200/225 250/300 350/400 a 23.74 26.24 30.50 32.60 35.60 47.14 b 13.98 16.48 20.74 22.85 25.85 37.39 c 12.58 15.08 19.34 21.45 24.48 36.00 d 33.04 33.04 33.04 37.04 37.04 37.04 e 28.61 28....

  • Page 20

    Air 5-593.9 20 this page intentionally left blank.

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    Air 5-593.9 21 this page intentionally left blank.

  • Page 22: Important

    Air 5-593.9 22 maintenance all heating equipment should be serviced before each heating season to assure proper operations. The following items may be required to have more frequent service schedule based on the environment in which the unit is installed, and the frequency of the equipment operation...

  • Page 23

    Air 5-593.9 23 burner side access panel heat exchanger support manifold ground union joint electrical junction box serial plate on outside of door (not shown) maintenance burner and pilot assembly removal to remove the burner (refer to figure 23.2) 1. Shut off gas and electric supply. 2. Remove the ...

  • Page 24

    Air 5-593.9 24 service & troubleshooting power exhauster motor will not start pilot does not light main burners do not light (pilot is lit) lifting flames (see figure 25.1) yellow tipping (with propane gas, some yellow tipping is always present.) flashback floating flames (see figure 25.2) flame rol...

  • Page 25

    Air 5-593.9 25 j automatic reset high limit the duct furnace comes standard with an automatic reset high limit switch that will shut-off the gas should the discharge air temperature become excessive. See figure 16.1, indicator p for the location of either the standard automatic or optional manual re...

  • Page 26

    Air 5-593.9 26 replacement parts ordering ordering when servicing, repairing or replacing parts on these units, locate the serial plate of the unit and always give the complete model number and serial number from the serial plate. The serial plate is located on the door of the electrical control box...

  • Page 27

    Air 5-593.9 27 model identification indoor separated combustion duct furnace model nomenclature 1 - product type (pt) i - duct furnace - indoor 2 - unit configuration (uc) f - furnace 3 - venting (v) s - separated combustion 4,5,6 - furnace input rating (mbh) 75 - 75,000 btu/hr input 100 - 100,000 b...

  • Page 28

    © modine manufacturing company 2017 as modine manufacturing company has a continuous product improvement program, it reserves the right to change design and specifications without notice. Commercial warranty seller warrants its products to be free from defects in material and workmanship, exclusive,...