Page 2 - INSTALLATION AND SERVICE MANUAL
OUTDOOR COMBINATION OIL-FIRED FURNACE AND AIR CONDITIONING UNIT MODEL OPB (24,30,36)- 80 INSTALLATION AND SERVICE MANUAL Please read these instructions prior to installation, initial firing, and before performing any service or maintenance. : If the information in this manual is not followed exactly...
Page 3 - Contents; PAGE
All installations and services must be performed by qualified service personnel. Contents SECTION PAGE I. SAFETY INFORMATION .............................…………………………………….3 II. GENERAL INSTRUCTIONS ...........................................………………….…..9 III. GENERAL INSTALLATION .........................
Page 5 - I. SAFETY INFORMATION
All installations and services must be performed by qualified service personnel. I. SAFETY INFORMATION This page and the following page contain reproductions of the various instructions and warning labels placed on the Thermo Pride oil-fired appliances. Please read and comply with the contents of th...
Page 7 - Homeowner/User Routine Maintenance; section of this manual.
All installations and services must be performed by qualified service personnel. The following warnings and cautions are found throughout the Thermo Pride Model OPB Installation and Service Manual. Please read and comply with the statements below. : IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A...
Page 8 - Never operate the appliance without clean air filters in place.
All installations and services must be performed by qualified service personnel. : Waterproof type connectors must be used when connecting electrical power and control wiring to the unit to prevent moisture from being drawn into the unit during operation. : Refrigerant is under pressure. Guard again...
Page 10 - Refer to the appliance-rating label for the required type of fuel.; Airflow; Airflow Requirements and Sizing of Ductwork; section of this
All installations and services must be performed by qualified service personnel. : Carefully read and thoroughly understand the following guidelines and warnings before continuing with the installation of this appliance. Failure to follow these guidelines can cause improper and unsafe operation of t...
Page 12 - in this manual and should be followed accordingly.; In the absence of local; Combustible material:
All installations and services must be performed by qualified service personnel. A. Codes and Clearances: The following items must be considered when choosing the size and location of the unit. 1. All local codes and/or regulations take precedence over the instructions in this manual and should be f...
Page 15 - Such chemicals; Venting of Combustion Products,; for; C. Venting of Combustion Products
All installations and services must be performed by qualified service personnel. For proper and safe operation of this appliance, ensure that adequate clearances around air openings into the burner compartment and the condenser coil area are maintained. These openings are not to be blocked, or restr...
Page 17 - all fuel oil service lines.; Never use galvanized steel piping or fittings; Where practical, provide rigid supports for the piping.
All installations and services must be performed by qualified service personnel. Figure 3: Installation of a Condensate Drainage Line on the Evaporator Coil Condensate from the evaporator is non-corrosive and may be disposed of in any appropriate manner. The drain connection should be sealed at the ...
Page 18 - of heavy wall copper tubing is recommended.; Avoid running tubing; If; Do not use compression fittings.; Avoid the use of
All installations and services must be performed by qualified service personnel. 5. A readily accessible, design-certified, manual oil shutoff valve, with a non- displaceable rotor member, shall be installed in the fuel oil supply piping within 6 feet of the appliance. 6. A pipe union, or flanged co...
Page 19 - A nozzle has been factory installed to provide low-fire operation.
All installations and services must be performed by qualified service personnel. When the oil tank is located below the level of the burner, it is necessary to “lift” the oil to the burner. A return line should be connected between the fuel pump and tank. This requires insertion of the "by-pass&...
Page 21 - Refer to Example 1, in; Appendix B: Calculations; of this manual, for a
All installations and services must be performed by qualified service personnel. H. Airflow Requirements and Sizing of Duct Work The duct system must be sized and installed by a qualified installer or service person, following the design standards of the Air Conditioning Contractors of America (ACCA...
Page 23 - Refer to Example 2, in
All installations and services must be performed by qualified service personnel. h. The resistance of the take-off and the outlet register (or return grill) should then be summed together to determine the total pressure drop for each branch. This value should be close to the assumed value for the pr...
Page 28 - Do not put in a larger fuse and do not exceed; . The control fuse is located within the
All installations and services must be performed by qualified service personnel. 3. All wiring sizes must comply with local codes or the National Electrical Code. To minimize voltage drop to the appliance, the next larger size wire should be used when long wiring runs, in excess of 100 ft., are empl...
Page 29 - Figure 4: The Fan Control Module
All installations and services must be performed by qualified service personnel. Figure 4: The Fan Control Module NOTICE: It is important to confirm that the operating voltage of the humidifier or EAC being installed matches the output of this control. If not, a field supplied relay or transformer m...
Page 31 - ii. Connect the bare ends of this wire jumper across terminals “R” and
All installations and services must be performed by qualified service personnel. Preferred method of adjustment: Using an analog ammeter on the lowest scale, such as an Amp Check, connect the meter across terminals “R” and “W” on the sub-base (“RH” & “W” on an isolating thermostat sub-base). If ...
Page 32 - : Turn off the electrical power to the unit, before attempting
All installations and services must be performed by qualified service personnel. Or in this case, _2.5 A. = 0.25 A. (Anticipator Setting) 10 iv. Adjust the position of the anticipator indicator to match the calculated ammeter setting. If a slightly longer cycle is desired, the pointer should be move...
Page 33 - in; Appendix D; openings are clear and free from blockage.
All installations and services must be performed by qualified service personnel. IV. STARTUP PROCEDURES A. Heating System 1. Initial Startup: : Turn off power to furnace. Before the oil piping system is placed into service, it must have been leak tested by a qualified heating contractor. : For initi...
Page 38 - positions of the burner air band.
All installations and services must be performed by qualified service personnel. The supply air temperature should be measured in the supply air trunkline approximately 12 inches downstream of the supply air outlet of the appliance. NOTICE: Minimum temperature rise is 50 0 F.; maximum temperature ri...
Page 40 - All controls on the unit should be checked for proper; iv. In the heating mode, set the thermostat above room temperature
All installations and services must be performed by qualified service personnel. After 15 to 20 minutes of continuous operation, the temperature rise through the furnace must fall within a range of 50° to 80° F. If the outlet or supply duct temperature is too high, check to make sure the return air ...
Page 42 - F or lower), attempts to operate the cooling section and take; This is not necessarily the case.; A low refrigerant
All installations and services must be performed by qualified service personnel. B. Cooling Section 1. Initial Startup: : Refrigerant is under pressure. Guard against refrigerant spraying into the face or on skin. Always wear protective equipment, i.e. safety glasses or goggles and gloves when worki...
Page 43 - vapor charge only; while the system is operating.; F. Low loading on the cooling system will
All installations and services must be performed by qualified service personnel. The suction pressure and condenser subcooling are the most significant readings. If a unit is suspected of having a low refrigerant charge, the unit should be recharged using the suction pressure then topped off using s...
Page 44 - Refer to Example 4, in; of this manual, for a sample
All installations and services must be performed by qualified service personnel. 3. Condenser Subcooling: Before taking subcooling measurements, allow the system to stabilize through continuous operation for at least 15 minutes. To determine subcooling, measure the refrigerant pressure at the liquid...
Page 46 - The sequence of operation of the appliance.; Homeowner/User Information and Routine Maintenance; Dealer Maintenance
All installations and services must be performed by qualified service personnel. V. INSTALLER'S INSTRUCTIONS TO USER After completing the installation, the installer shall inform and/or demonstrate to the homeowner: 1. The location of these instructions in the appliance. These instructions must be k...
Page 48 - Initial Heating System Adjustments; Heat Exchanger; section of the manual.; : A qualified heating contractor must clean the heat exchanger.
All installations and services must be performed by qualified service personnel. excessive wear. Replace it, if required. Check and adjust oil pump pressure, if needed. Refer to Initial Heating System Adjustments section of this manual. 4. Heat Exchanger – Visually inspect the heat exchanger for exc...
Page 51 - Operational Check; check out procedures
All installations and services must be performed by qualified service personnel. 3. Operational Check : Before troubleshooting, familiarize yourself with the start up and check out procedures NOTICE: After reassembling the appliance, check for fuel oil leakage from the supply piping. a. Check proper...
Page 52 - section of this manual, for the
All installations and services must be performed by qualified service personnel. D. Supply/Return Air Blower Check in the blower compartment for dust, dirt, debris, and for the presence of insects. Remove any foreign material. Clean the blower wheel, housing, and compartment of dust and lint with a ...
Page 53 - Fill the oil tank to reduce water condensation in the tank.
All installations and services must be performed by qualified service personnel. NOTICE: Remind the homeowner of the importance of monthly filter inspections during operation to ensure maximum operating efficiency. F. Extended Appliance Shutdown : Do not attempt to start burner when: • Primary reset...
Page 54 - Open the inspection cover on the upper mounting plate.; Figure 13: Location of Oil Pump Vent Plug; Follow the previous; Initial Burner Operation
All installations and services must be performed by qualified service personnel. 6. Open the inspection cover on the upper mounting plate. 7. Turn on the electrical power to start the burner. If the burner does not start, immediately reset the manual overload switch on the motor (if so equipped) and...
Page 55 - it may be possible to reactivate the
All installations and services must be performed by qualified service personnel. VII. HOMEOWNER/USER INFORMATION AND ROUTINE MAINTENANCE : Never burn garbage or refuse in this appliance. Never try to ignite oil by tossing burning papers or other material into the combustion chamber. : Oil-fired appl...
Page 56 - Burner Motor
All installations and services must be performed by qualified service personnel. 4. Check to see if the high temperature limit switch reset button, on the burner motor, has “popped out”. If so, the control has activated. To reactivate the control, depress the reset button. 5. Replace and secure the ...
Page 57 - plain water, from the inside of the coil outward.; With the heating; Shut off the unit and allow the
All installations and services must be performed by qualified service personnel. The following maintenance points should be reviewed periodically to assure the heating and cooling systems continue to function properly. : Shut off unit and disconnect the power source before disassembling the unit. : ...
Page 60 - Number of flashes Cad Cell Resistance (in ohms)
All installations and services must be performed by qualified service personnel. Number of flashes Cad Cell Resistance (in ohms) Model R7184B 1 ......................................... 0 to 400 2 ......................................... 400 to 800 3 ......................................... 800 to...
Page 62 - REFERENCES
All installations and services must be performed by qualified service personnel. IX. REFERENCES 1. International Approval Services-U.S. Inc. and the National Fire Protection Association, 1996, National Fuel Gas Code, ANSI Z223.1-1996/NFPA 54-1996, 6th Ed., pp. 10 & 13. 2. Earley, M.W., Sheehan, ...
Page 63 - APPENDIX A: SOURCES FOR REFERENCED STANDARDS; Street
All installations and services must be performed by qualified service personnel. X. APPENDIX A: SOURCES FOR REFERENCED STANDARDS 1. Air Conditioning Contractors of America 1712 New Hampshire Avenue, NW Washington, D.C. 20009 (202) 483-9370 2. American National Standards Institute, Inc., Attn: Custom...
Page 64 - APPENDIX B: CALCULATIONS; It is desired to install a warm-air furnace w/ an air conditioning
All installations and services must be performed by qualified service personnel. XI. APPENDIX B: CALCULATIONS Example 1: Problem: It is desired to install a warm-air furnace w/ an air conditioning evaporator coil at a residence. The net output of the furnace is 100,000 BTU/hr and the evaporator will...
Page 65 - Figure 15: Plan View of a Typical Residence
All installations and services must be performed by qualified service personnel. Figure 15: Plan View of a Typical Residence Solution: If certain flowrates are desired, for heating or cooling reasons, or are required, by local codes, those guidelines should be followed. In lieu of other requirements...
Page 66 - Area for Example 2
All installations and services must be performed by qualified service personnel. This procedure can be repeated to determine the airflow for each room in the residence. The results of these calculations are given in Table 6, below. Table 6: Required Room Air Flowrates Based on Floor Area for Example...
Page 68 - So, the total equivalent straight duct length is,
All installations and services must be performed by qualified service personnel. However, there are two, 90 degree turns in the branch that will cause a large pressure drop, not accounted for in our calculations. To compensate for this drop, we should increase the effective length of the branch. For...
Page 69 - or approximately the same as without the elbow.
All installations and services must be performed by qualified service personnel. Likewise, the pressure drops for the two remaining segments in this branch can be calculated in the same manner. They are, . . . . 00702 . 0 . . . 0129 . 0 G W in P and G W in P H F = Δ = Δ Referring to section (f) and ...
Page 70 - or an increase in duct size of about 1 inch in diameter.
All installations and services must be performed by qualified service personnel. Using the previous pressure drop equation, the pressure drop through segment “A” is 0.0321 in. W.G. Then, the pressure drop for the “D” and “E” branch is, .. . . 0643 . 0 . . . 0257 . 0 . . . 0644 . 0 . . . 0321 . 0 G W...
Page 71 - Table 7: Required Duct Sizes for the Residence in Example 2
All installations and services must be performed by qualified service personnel. The pressure drops for the remaining branches of the system must be set. This includes segment “G”; segments “I” and “J”; and segments “K”, “L”, and “M”. To balance the system, the pressure drop for each branch must be ...
Page 72 - Example 3; the degree of superheat for this system?; at the same point; , tabulated data on R410A from the refrigerant manufacturer,
All installations and services must be performed by qualified service personnel. Example 3 : Problem: Refrigerant measurements are made on the cooling system of a typical OPB installation. The suction line pressure, measured at the condenser unit, suction line, charging port, is 135 PSIG. The temper...
Page 76 - XII. APPENDIX C: ELECTRICAL SCHEMATIC AND CONNECTION DIAGRAM
All installations and services must be performed by qualified service personnel. XII. APPENDIX C: ELECTRICAL SCHEMATIC AND CONNECTION DIAGRAM 74
Page 77 - XIII. APPENDIX D: SEQUENCE OF OPERATIONS; Mode of Operation
All installations and services must be performed by qualified service personnel. XIII. APPENDIX D: SEQUENCE OF OPERATIONS 75 A. SEQUENCE OF OPERATIONS FOR THE HEATING SYSTEM Mode of Operation Start Start trial for ignition Standby (At any time the oil valve is not energized) On power interruption, s...
Page 78 - Control System Action
All installations and services must be performed by qualified service personnel. 76 Control System Action OPB 2 of 2 After 45 second delay, the ignition electrodes are de- energized. The circulating air fan is energized at heating speed. The (optional) electronic air cleaner & humidifier are ene...
Page 79 - XIV. APPENDIX E: TROUBLESHOOTING FLOWCHARTS
All installations and services must be performed by qualified service personnel. XIV. APPENDIX E: TROUBLESHOOTING FLOWCHARTS 77 A. SEQUENCE OF OPERATIONS FOR THE HEATING SYSTEM Mode of Operation Start Start trial for ignition Standby (At any time the oil valve is not energized) On power interruption...
Page 83 - EFFECTS OF PRESSURE ON NOZZLE FLOW RATE
All installations and services must be performed by qualified service personnel. 81 DOES FURNACE OPERATE WITHOUT CONDENSING? IS THE TEMPERATURE DIFFERENCE BETWEEN SUPPLY IS STACK TEMPERATURE Yes Yes Yes Yes No No No No IS BURNER SET AS INDICATED IN ABOVE SECTION? ADJUST BURNER COMBUSTION TO PRODUCE ...
Page 85 - Notes for Air Conditioning Troubleshooting Guide; Allow the compressor to cool below 130
All installations and services must be performed by qualified service personnel. Notes for Air Conditioning Troubleshooting Guide 1.101.0 Check to see if the contactor has not pulled in. If the coil has not pulled in the contactor, check for 24 VAC to the coil on the contactor. 1.101.1 Check to make...
Page 88 - SEER; Nominal Electrical Power Requirements:; Variable
All installations and services must be performed by qualified service personnel. 86 XV. APPENDIX F: SPECIFICATION SHEETS Model No.: OPB24-80 OPB30-80 OPB36-80 Heating Performance (using # 2 fuel oil): Input rate (BTUH), Maximum / Minimum :Heating capacity (BTUH), Maximum / Minimum : Design temp. ris...
Page 91 - APPENDIX H: OPB HEATING AND COOLING SYSTEMS TEST FORM
All installations and services must be performed by qualified service personnel. APPENDIX H: OPB HEATING AND COOLING SYSTEMS TEST FORM Name:Address:City, State, & Zip Code:Model No.:Serial No.:Burner Model No.:Mfgr & Model of Fuel Oil Filter:Combustion Tests * Service # 1 Service # 2 Service...
