Instruction/ maintenance manual of the product M1S Nordyne
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For installation in: 1. Manufactured Homes 2. Recreational Vehicles, Park Models, Manufactured Buildings 3. Modular Homes/Buildings ! W ARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
2 TABLE OF CONTENTS 1. SPECIFI CATIONS ................................................................................... 3 2. OWNERS INFORMATION ....................................................................... 3 3. MANUFACTURER WARRANTY, OWNER RESPONSIBILITY .
3 ! W ARNING: Do not use this appliance if any part has been submerged under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control that has been submerged underwater.
4 necessary to correct problems due to improper setup, improper installation, furnace adjust- ments, improper operating procedure on the part of the user, etc. Some specific examples of service calls which cannot be included in warranty payments are: 1.
5 Carefully review these responsibilities with your manufactured housing dealer, service com- pany or gas supplier so there will be no misun- derstanding at a later time. ! CA UTION: • Never attempt to alter or modify this furnace or any of its components.
6 ALL M O DE L S CLO S E T AL COV E F ront 6" 18" B ac k 0" 0" Sid e s 0 " 0" Ro of J ac k 0" 0" To p 6" 6 " T op and S i de s of Duc t 0" 0 &quo.
7 ROOF JACK SLANT DECK FLASHING PITCHED ROOF CEILING CEILING CAVITY ROOF OPENING CEILING OPENING "X" (SEE TABLE 6) S O T 27 45 -5 S= SLA T FLASHING F= FLA T FLASHING O= TYPE; ST ANDARD H= HIGH WIND A= ARCTIC ROOF JACK T= TRANSIT MODE TYPE MIN.
8 b. F=Flat Flashing; flexes from 0/12 to 1/12 roof slope. c . S=Slant Flashing. 2.5/12 Slope flexes from 1/ 12 to 4/12 roof slope, 4/12 flexes from 3/12 to 5/12. d. Stainless steel roof jacks are available. e. If the roof jack crown is covered or blocked with snow, the furnace will not operate prop- erly.
9 10. DUCT CONNECTOR SELECTION b. Select appropriate model from Table 7 which matches X-dimension of the floor cavity. To maximize air delivery, re- move reducer “C” (see Figure 11) to obtain the largest open area that will fit the duct/floor construction.
10 Figure 12. Closet or Alcove CEILING AND ROOF OPENINGS C L C L 13-1/2" 10" 23 -1/4" FLOOR OPENING C L C L A LT. FUEL L INE HOLES SIDE WALL REAR W ALL FUEL LINE HOLE FLOOR CUT-OUT FOR DUCT CONN.
11 11. INSTALLATION Required floor, ceiling, and roof cut-out open- ings must be carefully located to avoid misalign- ment of the furnace and Roof Jack (see Figures 12 & 13). Installation procedures are suggested for typical furnace installations and need not be followed in the exact listed sequence.
12 Figure 16. Installation of Duct Connector b. Cut ceiling and roof holes as follows: Ceiling Hole = 8-3/4" (222 mm) diameter Roof Hole = 9-3/8" (238 mm) diameter c . DO NOT ALLOW DEBRIS TO FALL INTO THE FURNACE. THIS COULD CAUSE UNSAFE OPERATION AND VOIDS THE FURNACE WARRANTY.
13 Staple Folded Duct Flap (typ) to side of Duc t Connector Duct STEP 4. STEP 1. "A" "A" "B" "B" Cut- Out Area"A" Cut- Out Area "A" Fold Back Flap "B" Fold Back Flap "B" Top of Duct "A" "A" STEP 2.
14 MTG. PLATE TABS SLIDE FURNACE ALL THE WAY BACK ONTO MTG. PLATE SU P PLY A IR D U C T Knockout O ver H oles SECURE FURNACE WITH 2 FASTENERS AT FRONT CORNER HOLES SUPPLY AIR DUCT FUEL LINE HOLES MTG. PLATE TABS SLIDE FURNACE ALL THE WAY BACK ONTO MTG.
15 c . Venting system warning tags to be removed and discarded. ! W ARNING: Failure to properly secure the flue pipe to the furnace may result in fire, explo- sion or asphyxiation when operating the furnace.
16 If the heat anticipator is set too low, the furnace may cycle frequently and not provide comfort to the homeowner. 14 . FUEL PIPING Sizing and installation of fuel lines must be in accordance with federal, state and local regu- lations. All piping shall be black iron pipe, or equivalently sized steel tubing.
17 Table 8. Thermostat Wire Gauge To Gas Supply Floor Control Panel On-Off-Fan Switch Alt. Fuel Line Entry Floor Cavity Figure 26. Typical Gas Piping For natural gas operation, the furnace is de- signed for 7" W.C. inlet pressure. Pressure is reduced to 3-1/2" W.
18 Figure 27. Typical Oil Piping for Above Ground (Single-Line) Supply If fuel pump fails to lift oil, check for air port plug and repeat priming procedure. leaks and tighten all fuel fittings. Re- prime fuel pump by injecting fuel oil into optional (top) return port.
19 ground. Fuel tanks may also be buried if prop- erly coated to resist corrosion. For below ground fuel tank installations, the vertical dimension from the bottom of the fuel tank to the fuel pump must not exceed ten feet. Keep the tank filled, especially in the summer to reduce the accu- mulation of condensation.
20 15 . FLUE GAS SAMPLING It may be necessary to take flue gas sampling from oil and gas gun furnaces (M1S and M1B Series Models) in order to check the perfor- mance after furnace installation. A flue gas sample may be taken from the heat exchanger, which is located behind the hole of the top-front of blower compartment.
21 Gas Control Lever Pilot Adjustment Figure 28. Standing Pilot Valve Figure 29. Lighting Furnace Pilot Bracket ! W ARNING: Close hinged fire door. If fire door is open or spring is broken it may allow products of combustion into the living space by the furnace blower resulting in possible asphyxiation.
22 e. When the call for heat is satisfied the thermo- stat contacts open, the gas valve shuts off gas flow, and the induced draft blower stops. GENERAL-DIRECT IGNITION MODELS Read safety information on front page of these installation instructions before operating fur- nace.
23 remains open if flame is sensed, or closes if flame is not sensed. e. If flame is not sensed, the entire sequence is repeated four more times before “lockout” occurs. To reset, wait 30 seconds and then interrupt the 24 VAC power by turning the room thermostat below room temperature, then returning it to the original set point.
24 accomplished automatically by a silicon car- bide hot surface ignitor. A control module takes care of all lighting and timing functions. There are no external relays or timing devices. Do not try to light this furnace manually. The control module is not field serviceable.
25 2. Limit Control - This furnace is protected by two high temperature safety limit switches. The auxiliary (upper) limit switch and the high temperature (lower) limit switch are auto- matic reset types. If either limit trips, the burner will shut off.
26 5/32” GAP ELECTRODE NOZZLE 0-1/16” 5/16” ABOVE CL air, to a larger number (clockwise) for more air. Tighten the lock nut after completing the adjust- ment. For best results, use instruments to measure between 8-9% CO 2 after the combus- tion air has been adjusted.
27 d. To remove the gas valve assembly, remove screw(s) from gas valve bracket. Gas valve and spud may be removed. Orifice is located at the end of the spud (M1G*,M1M*),or re- move three (3) bolts from U-shaped manifold plate and orifice assembly (M1B*).
28 may be defective. Replace the gas valve if necessary. e. Be sure the pilot shield is in place. f. Check for gas leaks in the pilot line or the pilot assembly. g. Check the flue assembly to make sure all connections are tight. h. See the FURNACE START-UP procedure for lighting details.
29 humidity requires higher temperatures for the same level of comfort. Check for proper humidity level in the home. TROUBLESHOOTING - DIRECT IGNITION FURNACES INCLUDING GAS GUN Burner Motor Does Not Run— Thermostat Calls For Heat a. Check the electrical supply to the furnace.
30 c . If no power to combustion blower then check wiring and control module; replace if neces- sary. Circulation Air Blower Will Not Operate Even Though The Burner Does Operate a. Check thermostat “G” wiring. b. Check wiring to motor. c . Check for a defective motor.
31 ! W ARNING: Do not obstruct any return air open- ings, including the grille on the fur- nace. To do so may cause the furnace to activate the high limit and shut down, or it may cause asphyxiation.
32 Figure 39. Thermostat Wiring A/C Ready Models Figure 37. Coil Cavity Damper (Non-Platinum Series Only) Figure 38. Damper without Coil Cavity (Non-Platinum Series Only) Rc R H W G Y Red White Green Yellow Red White Green Grey ** Thermostat M1* A/C Ready Furnace Route Thermostat wire to intended Platinum Series AC/HP location.
33 T able 11. A/C Blo wer Selection Blo wer S p eed S el ecti o n Ch art for M 1*C Mo d el s and for u se wi th Bl ow er Ki t No. 903413 1/ 2 Hp 4 S p eed Heat i n g Coo l i n g S peed / E vap Coi l S.
34 20. WIRING DIAGRAMS 703887B Figure 40. Gas Atmospheric Furnace, M1GH 056, 070 Models Gas Atmospheric Furnaces, M1GH 056, 070 ON/OFF SWITCH GAS VALVE FAN SWITCH HI-LIMIT AUX.
35 703888C Figure 41. Standing Pilot with Induced Draft Furnace, M1GH 077, 090 Models 1 5 2 3 6 4 GAS VALVE FAN SWITCH HI-LIMIT AUX. LIMIT PRESSURE SWITCH COMBUSTION FAN L1 N C R 24 V 115 V BLACK BLAC.
36 710150 08/00 Figure 42. Gas Atmospheric Furnace, A/C Ready, M1G (B, C, D) 056, 070 Models RED (LOW) BLACK (HIGH) BLUE (MED. HI) ORANGE (MED. LO) 1 5 2 A/C BLOWER RELAY 3 6 4 ON/OFF SWITCH GAS VALVE FAN SWITCH HI-LIMIT AUX.
37 Figure 43. Standing Pilot with Induced Draft Furnace, A/C Ready M1G (B, C, D) 077, 090 Models 1 5 2 A/C BLOWER RELAY 3 6 4 1 5 2 COMBUSTION BLOWER RELAY 3 6 4 ON/OFF SWITCH GAS VALVE HI-LIMIT AUX.
38 See Table BLOWER MOTOR SINGLE SPEED ON/OFF SWITCH C R G W GAS VALVE HI-LIMIT AUX. LIMIT TRANS- FORMER PRESSURE SWITCH 6 5 4 3 2 1 6 5 4 3 2 1 COMBUSTION FAN L1 N C R 24 V 115 V 2 1 1 4 5 2 6 3 1 2 .
39 7104670 04/04 Figure 45. Gas and Oil Furnaces, A/C Ready - M1 (B, S) 066, 086 Models 1 5 2 A/C BLOWER RELAY 3 6 4 FAN SWITCH HI-LIMIT AUX. LIMIT TRANSFORMER L1 N C R 24 V 115 V BLACK GREEN WHITE WH.
¢708074/¤ 708074E O’Fallon, MO 708074E (Replaces 708074D) Specifications and illustrations subject to change without notice and without incurring obligations. Printed in U.S.A. (04/06) INST ALLER: Please leav e these installation instructions with the homeowner .
An important point after buying a device Nordyne M1S (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Nordyne M1S yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Nordyne M1S - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Nordyne M1S you will learn all the available features of the product, as well as information on its operation. The information that you get Nordyne M1S will certainly help you make a decision on the purchase.
If you already are a holder of Nordyne M1S, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Nordyne M1S.
However, one of the most important roles played by the user manual is to help in solving problems with Nordyne M1S. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Nordyne M1S along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
