HML (Up-Flow Model) HMLV (Up-Flow Model with ECM) Series C Oil Fired Warm Air Furnaces INSTALLATION, OPERATION & MAINTENANCE MANUAL ECR International An ISO 9001-2008 Certified Company 2210 Dwyer Avenue, Utica NY 13501 web site: www.ecrinternational.com P/N# 30173, Rev.
Dimensions Furnace Model HML HMLV Cabinet Plenum Openings Width Depth Height Supply 22" 30¾" 49⅝" 55.9 cm 78.1 cm 126.7 cm Return Flue Diameter Side Bottom 20½"W x 20"D 14" x 22" 14" x 22" 5" 52 cm x 52.8 cm 35.6 cm x 55.9 cm 35.6 cm x 55.9 cm 12.7 cm 2 Filter Type Permanent Size Shipping Weight (LB) 16" x 25" x 1" 210 LB 40.6 cm x 63.5 cm x 2.5 cm 95.
1. General ................................................................................................................................ 4 2. Safety Symbols ..................................................................................................................... 4 3. Introduction Models HML And HMLV ......................................................................................... 4 4. Heat Loss ...........................................................................................
1. General 3. Introduction Models HML And HMLV Furnace installation shall be completed by qualified agency. See glossary for additional information. Models HML and HMLV are oil fired forced air up-flow furnaces with an output capacity range of 59,000 btu/hr. To 96,000 btu/hr. • HML models are equipped with 1/2 HP PSC 4 speed blower motor. ! WARNING Fire, explosion, asphyxiation and electrical shock hazard. Improper installation could result in death or serious injury.
. Locating the Unit - [See Figure 1 and Table 1] Table 1: Minimum Installation Clearances • Locate furnace so flue connection to chimney is short, direct and consists of as few elbows as possible. Location Clearance to Combustibles HML and HMLV Up flow 1" (26 mm) • Centralize furnace location with respect to supply and return air ductwork. Central location minimizes trunk duct sizing. Top • All models may be installed on combustible floors. S/A Plenum 1" (26 mm) Rear 1" (26 mm) Bottom 6.
7. Combustion Air ! WARNING • Furnace installed in a closet or utility room, provide two openings connecting to well-ventilated space (full basement, living room or other room opening, not a bedroom or bathroom). Asphyxiation hazard. Chimney vented versions of furnace must be connected to flue having sufficient draft at all times. Failure to follow these instructions could result in death or serious injury. A. One opening shall be located above level of upper vent opening. B.
9. Barometric Damper Control Chart 1- United Technologies 1158-120 (HML) Barometric damper control, also known as draft regulator, is used on conventional chimney venting only. Control automatically maintains constant negative pressure. Ensures proper pressures are not exceeded. If chimney does not develop sufficient draft, draft control does not function properly. • Install draft regulator in same room or enclosure as furnace.
16. Oil Burner Nozzles • Thermostat wiring connections are shown in wiring diagrams in Appendix B. Some micro-electronic thermostats require additional controls and wiring. Refer to thermostat manufacturer's instructions. HML and HMLV are certified for multiple firing rates, ranging from 59,000 to 96,000 Btu/h output. Furnace may be fired at ideal rate for wide range of structures by manipulating oil burner nozzle, flame retention head, and temperature rise.
• Some older duct systems were not designed to provide static pressure. They typically feature special reducing fittings at each branch run and lack block ends on the trunk ducts. These systems may require modification to provide some resistance to the airflow to prevent over-amping of direct drive blower motor. Selecting a lower blower speed may correct this problem. NOTICE Do not tamper with furnace controls they are sensitive. If problems persist, call your service contractor. 19.
21b. Circulating Air Blower (HMLV) Annual Service By Contractor HMLV furnace models are equipped with electronically commutated motors (ECM). Setting Blower Speed and “ON” and “OFF” Timings Blower speed and on/off time delays are handled by ECM motor programming and are set via dipswitches per Table A-9 on page 17. Heating airflow rate is SW1 and on/off delay is SW4, both are set according to firing rate. Cooling airflow rate is SW2 and if used is set according to installed cooling capacity.
24. Operating Instructions (HMLV) ! WARNING Before Lighting 1. Open all supply and return air registers and grilles. 2. Open all valves in oil pipes. 3. Turn on electric power supply. Fire, burn, explosion, asphyxiation hazard. • Do not start burner when excess oil has accumulated, furnace is full of vapor, or combustion chamber is very hot. • Do not burn garbage or paper in furnace. • Do not leave paper or rags around furnace. To Light Unit 1. Set thermostat above room temperature to call for heat.
APPENDIX A - CHECK OUT AND ADJUSTMENTS Check out and adjustments HML and HMLV furnaces may be used with following oil burners. Beckett AF, and Riello 40F oil burners are for applications using indoor air for combustion only. Sidewall venting applications utilizing outdoor air for combustion, use Beckett AFII or Riello 40BF (Balanced Flue) oil burners only.
APPENDIX A - CHECK OUT AND ADJUSTMENTS Table A-3 Riello 40F Series Oil Burner Set-Up Riello 40F Series Oil Burners (For use with chimney vented units) Furnace Model HML-60CRF2 HMLV-60CRF2 HML-80CRF2 HMLV-80CRF2 HML-90CRF2 HMLV-90CRF2 Output BTU/Hr Burner Model Delavan Nozzle Pump Pressure Flow Rate Air Gate Turbulator Setting 60,000 40F3 0.50 / 60°W 105 PSIG 0.50 USGPH 2.6 1.0 77,000 40F3 0.60 / 60°W 115 PSIG 0.65 USGPH 2.6 1.5 87,000 40F3 0.65 / 60°W 135 PSIG 0.75 USGPH 3.6 2.
APPENDIX A - CHECK OUT AND ADJUSTMENTS 11. After air adjustments have been completed, recheck A.2 Burner Electrodes the overfire draft at test port on burner mounting plate shown in Figure 2. Overfire draft should be adjusted to -0.02 inches w.c. 12. Turn burner off. Observe duct thermometer in supply air stream, note temperature blower fan stops. Fan adjustments can be made by moving dipswitch settings on timer control board for fan off delay. 13. Check operation of limit switch. A.
APPENDIX A - CHECK OUT AND ADJUSTMENTS A.5 Final Check Out Where oil shut-off valve from oil storage tank is located. Thermostat operation, and other related accessories. How to operate manual reset button on primary control, and when not to push the reset button. How and where to visually inspect venting system for leaks or other problems. How to inspect, clean and replace air filter, and other homeowner maintenance procedures. Who to call for emergency service and routine annual service.
100-10T DD 100-10T DD 100-10T DD 100-10T DD HML-60 HML-80 HML-90 HML-100 Med-High Med-High Med-Low Low Speed 16 100-10T DD HML 60 – 100 1/2 HP Motor HP 7.0 Motor FLA 60°F 7.7 Motor HP Motor FLA 100-10T 1/2 HP ECM DD Blower 60°F ∆T 445 - 605 Continuous Fan 1557 1063 697 Med-Low Low 625 - 1500 0.38 - 0.48 inches w.c. 600 - 1200 0.5 inches w.c.
OFF OFF ON ON 17 CFM 0% (+)15% (-)15% N/A A B C D 0.65 0.85 0.75 0.50 USGPH POS. A B C D POS. INPUT 2 OFF OFF ON ON OFF ON OFF ON OFF OFF ON ON DIP Switch Position 1 2 SW4 - DELAY 1 OFF ON OFF ON DIP Switch Position SW2 - COOL A B C D POS. A B C D POS. 0.65 0.85 0.75 0.50 USGPH INPUT 3 2.5 2 1.5 (TON) AC Size SW1 (HEAT) AND SW4 (DELAY) DIP SWITCHES MUST BOTH BE ADJUSTED ACCORDING TO INPUT (NOZZLE SIZE).
LOW SPEED FAN SWITCH (IF EQUIPPED) interupteur a basse vitesse (si équippée) F POWER SUPPLY 120 VAC 60 HZ (FUSED DISCONNECT ON HOT LEG) alimentation 120 VAC 60Hz (disjoincteur avec fusible sur le fil d'alimentation) L1 INDOOR BLOWER ventilateur principale BELT DRIVE MOTOR (IF AVAILABLE) L1 N MOTOR moteur 1 2 3 WH 4 3 2 1 1158-1 CONTROL BK UNUSED MOTOR ventilateur a courroie (si disponible) VALVE/ soupappe V BURNER 30746 Rev C IGNITER/ transformateur d'allumage I BLOCKED VENT SAFETY
APPENDIX B - WIRING DIAGRAMS Direct Vent Furnace Wiring Diagram HML/HMLV 19
APPENDIX C - SEQUENCE OF OPERATION AND TROUBLESHOOTING Table C-1: 1158-120 Electronic Fan Timer Board (EFT) Detailed Sequence Of Operation (HML) Mode Action System Response Thermostat calls for heat. ("W" terminal is energized). EFT closes the oil primary control T - T connections. Ignition system and the oil primary control start the furnace. Oil flows as long as the oil primary control senses flame. Burner motor is energized and heat "fan on" delay timing begins.
APPENDIX C - SEQUENCE OF OPERATION AND TROUBLESHOOTING C.1 Troubleshooting ! WARNING Electrical shock hazard. Only a trained, experienced service technician should perform troubleshooting procedure. Failure to do so could result in death or serious injury. C.2 Preliminary Steps: Consult Beckett or Riello instruction manuals provided with oil burner for specific information regarding oil burner primary control sequence of operation, diagnostics and troubleshooting.
APPENDIX C - SEQUENCE OF OPERATION AND TROUBLESHOOTING ! WARNING Electrical shock hazard. Only a trained, experienced service technician should perform troubleshooting procedure. Failure to do so could result in death or serious injury. Table C2: System and General Troubleshooting Problem Possible Cause Thermostat not calling for heat Check thermostat and adjust. Check thermostat for accuracy; if mercury switch type, it might be off level.
APPENDIX C - SEQUENCE OF OPERATION AND TROUBLESHOOTING Table C-2: System and General Troubleshooting continued Problem Furnace starts, but cuts out requiring manually resetting oil protector reset button. Furnace starts, but cuts out requiring manually resetting oil protector reset button. Oil burner sputtering at nozzle Excessive fuel oil consumption. Possible Cause Remedy Photo Cell (Cad Cell) defective. If cad cell is dirty, clean it. Determine why cad cell is getting dirty.
APPENDIX C - SEQUENCE OF OPERATION AND TROUBLESHOOTING Table C-2: System and General Troubleshooting continued Problem Too much smoke. Soot building up on blast tube (end coning). Furnace will not warm home to desired temperature. Home does not heat evenly Supply air temperature too hot. Supply air temperature too cool. Supply air temperature too cool during first moments of furnace cycle. Possible Cause Remedy Insufficient combustion air adjustment at oil burner, or improper draft pressure.
APPENDIX D - HOMEOWNER’S REFERENCE TABLE Model No. Serial No. Date Installed Contractor Contact Address Postal Code Telephone No. After Hours No. Fuel Supplier Fuel Oil Supplier Contact Telephone No. After Hours No.
PARTS LISTING Parts Listing: Chimney Vent Models HML80(C2,CRF2) and HMLV80(C2,CRF2) Ref. No. Description Part No.
PARTS LISTING Parts Listing: Chimney Vent Models HML80(C2,CRF2) and HMLV80(C2,CRF2) Ref. No. 35 Description Part No.
Model HML and HMLV Diagram ECR International 2210 Dwyer Avenue, Utica NY 13501 web site: www.ecrinternational.
