Enviroheat OMNI OWC-5 Series Installation Start-Up Maintenance

Used oil or gas/propane fired air cooled absorption water chiller

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InstallationSTARTUPADJUSTMENTMAINTENANCE

WARNING: 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.

 Do not store or use gasoline or other

flammable vapors and liquids in the

vicinity of this or any other appliance.

 WHAT TO DO IF YOU SMELL GAS



Do not try to light any appliance.



Do not touch any electrical switch; do

not use any phone in your building.



Immediately call your gas supplier

from a neighbor's phone. Follow the

gas supplier's instructions.



If you cannot reach your gas supplier,

call the fire department.

 Installation and service must be performed

by a qualified installer, service agency or

the gas supplier.



Enviro Heat

EnviroHeat



5714 1st Avenue

Spokane Washington 99212.

IF UNIT OVERHEATS OR UNIT'S

GAS VALVE FAILS TO SHUT OFF:

DO NOT SHUT OFF ELECTRICAL

SUPPLY TO UNIT. INSTEAD, SHUT "OFF" GAS

SUPPLY TO UNIT.

CALL SERVICE COMPANY.

WARNING:

Never burn chlorinated solvents mixed

with oils or otherwise rapid corrosion to

internal metals will occur.

chlorine test kit is available from the

factory upon request.

NOTE:

The power supply line must not be used

to turn the unit "ON" or "OFF".

dedicated control switch in the R-Y line is

for this purpose.



(509)534-1022 - Rev 4/2013

USED OIL or

GAS/PROPANE

FIRED AIR COOLED

ABSORPTION

WATER CHILLER

OWC-5 Series

An optional

The

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Page 1 EnviroHeat USED OIL or GAS/PROPANE FIRED AIR COOLED ABSORPTION WATER CHILLER OWC-5 Series INSTALLATIONSTARTUPADJUSTMENTMAINTENANCE IF UNIT OVERHEATS OR UNIT’S WARNING: If the information in this GAS VALVE FAILS TO SHUT OFF: manual is not followed exactly, a fire or DO NOT SHUT OFF ELECTRICAL SUPPLY TO UNIT.
Page 2 The OWC-5 Chiller can operate using either used oil or gas/propane. Normal operation of the Chiller will attempt to run on used oil first then automatically switch over to gas or propane if used oil burner is turned off or not operating due to lack of fuel or flame.
Page 3: Table Of Contents
INDEX SECTION 1 GENERAL WARNINGS SECTION 2 OVERVIEW AND TECHNICAL DATA OVERVIEW USED OIL AND GAS FIRED CHILLER OPERATION CYCLE TECHNICAL DATA SECTION 3 INSTALLATION GENERAL RULES INSTALLATION OF THE UNIT SECTION 4 HYDRONIC, USED OIL AND GAS INSTALLATION WATER PIPING DESIGN AND INSTALLATION SIZING A SYSTEM PUMP EXPANSION TANK SIZING GAS SUPPLY PIPING...
Page 4: General Warnings
NOTE Carefully read the information contained in this manual. It contains important instructions regarding installation, use and maintenance safety. Save this manual for any future needs. The manufacturer cannot be held responsible for any damages from improper, erroneous or irrational use. With the aim of continuously improving of quality of our products, manufacturer reserves the right to change reported instructions and drawings without any prior notice.
Page 5 Under no circumstances should the unit be operated with any safety or electrical component by-passed or defective. Do not use this appliance if any part has been 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, which has been under water.
Page 6: Overview And Technical Data
2 OVERVIEW AND TECHNICAL DATA 2.1 OVERVIEW The High Efficiency ACF series chiller is a single-block water-chilling unit equipped with an air-cooled condenser and designed for outdoor installation. The absorption cooling cycle is based upon a solution of water and ammonia for the production of chilled water at a temperature as low as 37 The chilling system is fed by thermal energy provided by used oil burner or gas burner;...
Page 7: Used Oil And Gas Fired Chiller Operation Cycle
2.2 USED OIL AND GAS FIRED CHILLER OPERATION CYCLE DESCRIPTION OF THE ABSORPTION REFRIGERANT CYCLE The fluid used in the cooling cycle is a solution of water and ammonia (see Figure 1). Ammonia is the refrigerant and water is the absorbing fluid. In the chiller’s generator, the ammonia-water solution is heated to boiling producing both a vapor with a strong concentration of ammonia and a liquid solution with a low concentration of ammonia.
Page 8 RESTRICTOR RESTRICTOR Figure 1 – ABSORPTION REFRIGERANT CYCLE Installation, Start-Up, Adjustment and Maintenance Manual...
Page 9 DESCRIPTION OF THE CHILLER OPERATIONS All chiller functions and operations are monitored and controlled by the electronic control board. The temperature probes, placed on the system in order to monitor the operation of the chiller, are transferring the following operating temperatures to the electronic control board: outlet chilled water temperature inlet chilled water temperature ammonia outlet temperature from condenser...
Page 10 Ammonia-water solution pump: The unit will stop if 15 seconds after start-up or during the operation of the appliance, no signal is received from the hydraulic pump rotation probe. (fault code E11 will appear on the electronic control board display) Condenser Fan: The fan’s speed depends on the external ambient and condenser outlet temperatures.
Page 11 NOTE When the appliance is turned off from the control switch (thermostat, programmable timer or similar), the hydraulic pump, fan and water pump (if controlled from electronic board) will continue to run for the next 215 seconds. Figure 2 - The S-60 Electronic Control Board A = 4 digit display shows the operation data (example: chilled water temperature) and possible anomalies.
Page 12 AIR BLAST MANIFOLD TUBE AIR OR AIR STORAGE GAS/PROPANE TANK (air or SELECTOR additional self MANIFOLD contained compressor) AIR BLAST OR GAS/PROPANE BURNER MANIFOLDS ASSEMBLY W/ON BURNER COMPRESSOR (for burneer gun assembly only) HINGED COMBUSTION CHAMBER Figure 3 – USED OIL BURNER/COMBUSTION CHAMBER (door open for chamber viewing). Installation, Start-Up, Adjustment and Maintenance Manual...
Page 13: Technical Data
2.3 TECHNICAL DATA PERFORMANCE RATINGS Nominal Cooling Capacity Btu/hr 60,500 Natural Gas/Used Oil Input Btu/hr 94,900 F Maximum Ambient Operating Temperature F Minimum Ambient Operating Temperature Condenser Air Flow , Nominal 6,000 Minimum 2,000 F Chilled Water Entering Temperature, Maximum F Chilled Water Leaving Temperature, Minimum 37.4...
Page 14 TYPICAL CAPACITY CHARACTERISTICS in Btu/hr AMBIENT AIR OUTLET CHILLED WATER (F) TEMPERATURE (F) 37.4 41.0 44.6 48.2 59,307 59,912 61,123 62,323 59,307 59,912 61,123 62,333 59,307 59,912 61,123 62,323 59,307 59,912 61,123 62,333 59,307 59,912 61,123 62,323 58,701 59,912 61,123 62,333 54,465 59,307...
Page 15 46F 52F 55F 63F 11.5 12.5 13.5 WATER FLOW – GALLONS PER MINUTE Graph 1 –UNIT’S PRESSURE DROP AS A FUNCTION OF INLET WATER TEMPERATURE Installation, Start-Up, Adjustment and Maintenance Manual...
Page 16: Installation
3 INSTALLATION 3.1 GENERAL RULES Only qualified technicians, in compliance with the manufacturer’s instructions, should carry out the installation and maintenance of the OWC-5 unit. The installation of the appliance must conform to the requirements of the authority having jurisdiction or in the absence of such requirements, to the latest edition of the National Fuel Gas Code, ANSI Z223.1.
Page 17: Installation Of The Unit
3.2 INSTALLATION OF THE UNIT HANDLING OF THE UNIT ON SITE When arriving at the installation site, visually inspect the unit for any signs of damage to the package, which may indicate possible unit damage. Once on site, the units must remain in the factory packaging and only be unpacked at the moment before installation.
Page 18 18” 18” 18” 18” 18” SINGLE UNIT MULTIPLE UNITS Figure 6 –CLEARANCES FOR CORRECT INSTALLATION OF THE UNIT There MUST NOT be any obstructions or structural overhangs (roof edges, balconies) over the top of the unit. The re-circulation of the air discharged from the condenser results in a poor unit performance. When the unit is installed in close proximity to buildings, keep the unit away from the roof edge drip line.
Page 19 4” CONCRETE SLAB 92 1/2” TYPICAL 35” TYPICAL Figure 8 –DIMENSIONS AND THE POSITION OF THE CONCRETE SUPPORTS ROOF / TERRACE INSTALLATION If the unit must be lifted by a hoist for installation, leave it on the crate base. Attach hoist lines to the crate base and use spreader bars to prevent the hoist lines from damaging unit's cabinet panels.
Page 20: Water Piping Design And Installation
4 HYDRONIC AND OIL/GAS INSTALLATION 4.1 WATER PIPING DESIGN AND INSTALLATION Piping for the chiller is to be designed and installed as a closed hydronic circuit. The following items (not supplied) must be installed close to the unit (see the Figure 9): FLEXIBLE CONNECTIONS to avoid vibration transmission to the chiller water lines.
Page 21: Sizing A System Pump
USE IF THE CHILLER IS THE HIGHEST POINT IN THE SYSTEM INLET OUTLET FLEXIBLE CONNECTIONS WATER PUMP PRESSURE / TEMPERATURE FILL/DRAIN VALVE TAPS WATER FILTER EXPANSION TANK REGULATION VALVES AIR BLEED (ON INLET WATER LINE) Figure 9 – WATER PIPING DIAGRAM FOR A SINGLE UNIT 4.2 SIZING A SYSTEM PUMP When sizing a pump, there are two pieces of information that must be found in order to select the appropriate pump:...
Page 22 7. Find Pressure Drop of Equipment (Chiller and Air Handler). If needed, convert to feet of head by using equation 1. Pressure Drop for OWC-5 is 13 feet of head. 8. Add answers obtained in Steps 6 and 7 together. This is your system “Total Feet of Head” 9.
Page 23 Friction of 50°F Water (Feet of Head per 100 Feet of Pipe)† Type L Copper Tube Sch. 40 Plastic Pipe Flow Rate Nominal Friction Nominal Friction Size Loss Size Loss ½” ½” 2.40 0.50 ½” ½” 8.04 2.43 ¾” ½” 2.93 3.27 ¾”...
Page 24 OWC-5 Chiller Air Handler Legend: Flexible Connection Water Pump Pressure/Temperature Tap Fill/Drain Valve Water Filter/Strainer Expansion Vessel Regulation Valve 10 – Piping detail with Air Handler Figure Size the pump for the system shown in Figure 10. The supply piping is 75’ long PVC. The air handler has a 5 ton chilled water coil with a pressure drop of 2.9 psi.
Page 25 Adding all the equivalent feet together you will get 10.4 feet. If you multiply this by the 3.77 feet of head per 100’ (Equation 2), you will find an additional 0.39 feet of head. You add these calculated numbers together to get. 5.7 + 13.0 + 6.7 + 0.4 = 25.8 feet of head.
Page 26 (tank should be ASME certified for sizes above 30 gallons) and should be sized specifically for each job based on its characteristics. NOTE: The following sizing instructions are for example purposes only. EnviroHeat Inc. does not endorse or specify any particular product brands.
Page 27: Major System Components
Volume of Water in Piping Gallons per Linear Foot Nominal Type L Other Pipe Size I.D. Copper Piping ½” 0.012 0.016 ¾” 0.025 0.028 1” 0.043 0.045 1-¼” 0.065 0.078 1-½” 0.092 0.105 2” 0.161 0.172 2-½” 0.250 0.250 3” 0.357 0.385 4”...
Page 28 Maximum Minimum System Temperature System 40°F 50°F 60°F 70°F 80°F 90°F 100°F Temperature 60°F 0.00055 0.00490 70°F 0.00149 0.00143 0.00094 80°F 0.00260 0.00254 0.00204 0.00111 90°F 0.00405 0.00399 0.00350 0.00256 0.00145 100°F 0.00575 0.00569 0.00520 0.00426 0.00315 0.00170 110°F 0.00771 0.00765 0.00716 0.00622...
Page 29: Gas Supply Piping
The connections for water and gas piping are located at the service plate on the right-side panel of the chiller (see Figure 12). 6-1/4” 2-1/2” 1-13/16” OIL CONNECTION – 1/4”FPT GAS CONNECTION – ½” FPT WATER CONNECTIONS – 1” FPT ELECTRICAL KNOCKOUTS –...
Page 30 The chiller and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of the gas piping system at test pressures in excess of 1/2 psig. The chiller must be isolated from the gas supply piping system by closing its individual shut-off valve during any pressure testing of the gas piping system at test pressures equal to or less than 1/2 psig.
Page 31: Electrical Connection
5 ELECTRICAL CONNECTION 5.1 POWER SUPPLY All wiring should be installed in accordance with the latest edition of the National Electrical Codes, ANSI/NFPA No. 70, CSA Standard C22.1 when installed in Canada, and with any local codes. The unit’s electrical system is pre-wired for single-phase, 208/230 volt and 60Hz operation. The control box includes a 208/230/24 volt transformer to supply low voltage to the control system.
Page 32: Pump Wiring
WARNING If power for the water pump is taken from the high voltage terminal block located in the electrical control box, as show in Figure 15, the minimum circuit ampacity for the unit must be increased above that listed in the TECHNICAL DATA sheet in SECTION 2 to accommodate the additional current draw of the water pump installed.
Page 33: Control Switch Wiring
24 VOLTS TIME DELAY RELAY (DELAY OFF- MINIMUM 215 SECONDS) 230 VOLT WATER PUMP Figure 18 – EXTERIOR CONTROL WIRING FOR A 230 VOLT WATER PUMP 5.3 CONTROL SWITCH WIRING A control switch that provides an ON / OFF function is to be connected to the R and Y on the S-60 board (see Figure 15).
Page 34 ELECTRONIC CONTROL BOARD (S-50) THERMOSTAT ISOLATION RELAY 18010-116 FURNACE HIGH RELAY LIMIT SWITCH MINIMUM 20VA TRANSFORMER DELAY PILOT DUAL GAS MOTOR SWITCH VALVE TO FUSED DISCONNECT Figure 19 – SINGLE THERMOSTAT USED FOR BOTH HEATING AND COOLING CONTROL ON A FURNACE Separate thermostats for heating and cooling control on a furnace.
Page 35 ELECTRONIC CONTROL BOARD (S-50) COOLING THERMOSTAT HEATING THERMOSTAT FURNACE RELAY HIGH LIMIT SWITCH MINIMUM 20VA TRANSFORMER DELAY MOTOR PILOT DUAL GAS SWITCH VALVE TO FUSED DISCONNECT Figure 20 – SEPARATE THERMOSTATS USED FOR HEATING AND COOLING CONTROL ON A FURNACE Single thermostat used for cooling control on a fan coil unit.
Page 36 THERMOSTAT LOCATION If the control switch is a thermostat, the thermostat should be located on an inside wall about 54 inches above the floor. It should be located so that it will no be affected by any of the following items: Discharge air from a supply grille Drafts Direct sunlight through a window or glass door...
Page 37: Chiller Wiring
5.4 CHILLER WIRING If any of the original wire as supplied with the unit must be replaced, it must be replaced with thermoplastic 105C wire, except igniter wire 230C, flame sensor, ground, high temperature and pressure switch wires 200C or equivalents (see Figure 22). Label all wires prior to disconnection when servicing the controls.
Page 38: Start-Up And Adjustment
6 START-UP AND ADJUSTMENT WARNING This unit should be started-up by an Authorized Technician according to the manufacturer’s instructions. The end-user is not authorized to perform start-up and adjustment operations. The owner’s satisfaction is directly related to the correct installation, proper adjustments, and application of the unit.
Page 39: Filling The Water Piping
Volume of Antifreeze required to achieve 10% by volume concentration 6.38 Gallons X 0.10 = 0.638 Gallons. PIPE SIZE GALLONS PER EQUIPMENT SIZE VOLUME (GALLONS) (INCHES) 100 FT PIPE OWC-5 5 TON “A”COIL 3/4" 1.5 TON “A” COIL 1" 2 TON “A”...
Page 40 8. If the system is filled, skip to Step 14. If the system is not full, turn on the hydronic system’s pump but do not start the unit. Jumping the N.O. CIRC. contacts on the electronic control board can start the hydronic system’s pump (if controlled by the electronic control board). 9.
Page 41: Gas Pressure Adjustment
Inhibited Propylene or Ethylene Glycol added to the water changes its thermal-physical properties, particularly its density, viscosity and mean specific heat. Graph 2 gives the correction factors for the hydronic system’s pressure drop as a function of glycol percentage added to the water. The graph is accurate for water temperatures between 45°F and 55°F.
Page 42: Used Oil Burner Adjustments
1. Turn main gas valve knob to the “OFF” position. 2. Remove the plug on outlet end of gas valve (see Figure 24) and attach pressure tap and manometer. 3. Turn power “ON,” and close control switch. 4. Wait for the burner to start up. Due to the presence of air inside the piping, it may be that the burner does not start at the first three attempts and failing to do so the ignition system is locked out.
Page 43: Chilled Water Temperature Regulation
6. Combustion air band should be open approximately 1/2” or until flame is clear yellow, not orange. Opening the air band too far may cause delayed in starting or even prevent the flame from starting. 6.5 CHILLED WATER TEMPERATURE REGULATION The electronic control board permits the regulation of the unit’s outlet chilled water temperature.
Page 44: Oil Burner Technology
local standards should perform installation, maintenance and service on the unit’s internal components. Installation and use of this used oil burning appliance shall be in accordance with the standard for the Installation of Oil Burning Equipment – ANSI/NFPA 31 – 1987, and National Electric Code –...
Page 45 notice the flame length will increase or decrease. Adjust flame length so flame is just slightly less than halfway down main combustion chamber tube. IMPORTANT: Once adjusted for correct flame length, take note of oil gauge setting for bench mark pressure reading needed when burning the specific fuel mixture generated by the owner.
Page 46 Pre-Heater Control Circuit Board Oil Pre-Heater Block Muffler/Filter Photo Eye Electrical Flame Sensor Terminal Block Figure 26 – Oil Burner (Back View Opened) Transformer Igniter Springs Oil Valve Electrodes Nozzle Burner Flame Cone Motor Flame Cone Figure 27 – Oil Burner (Front View) Installation, Start-Up, Adjustment and Maintenance Manual...
Page 47: Oil Pump
8 OIL PUMP Oil Outlet Oil Inlet Figure 28 –Oil Pump Diagram (New Style Spin-On Filter) Oil Primer Switch Oil Shut-off Valve- Eliminates start delays due to Adjustable Motor possible drain Speed- Initial set up back only- Once set, no adjustment needed thereafter Spin-On Filter...
Page 48 9 SERVICE AND MAINTENANCE Performing correct preventive service and maintenance will help to guarantee long life of the unit with high efficiency and low maintenance costs. WARNING ONLY Authorized Technicians strictly complying with the manufacturer’s instructions and the local standards should perform maintenance and service on the unit’s internal components. Lubrication of condenser fan, hydraulic pump, and pre-mixer motor is not recommended.
Page 49 CONDENSER / ABSORBER COILS Figure 30 –FINNED CONDENSER / ABSORBER CLEANING THE BURNER Tools Needed: Fiber Bristle Brush Dust Mask (3M #8710 or equal) Safety Goggles Hand Tools WARNING ALWAYS wear safety goggles! 1. Shut off gas and electric supply to unit. 2.
Page 50 8. Inspect burner tube gasket that seals the burner tube to the generator housing and the burner flange gasket that seals burner to premixer blower housing. Replace either gasket if damaged during burner removal process. 9. Replace burner tube in reverse order of removal. Note: Make sure the two gaskets are positioned correctly and that generator housing is properly sealed.
Page 51 Note: Make sure the two gaskets are positioned correctly and that generator housing is properly sealed. 22. Reassemble the remaining parts in reverse order. 23. Turn on gas and electric supply to unit. 24. Start unit and check for correct operation. BURNER TUBE GASKETS (NOT SHOWN) FLUE KIT NO.
Page 52 CHANGE AND CHECK OIL LEVEL WARNING DO NOT disconnect the hydraulic pump from the solution pump while performing any of the tasks listed below. If the hydraulic pump is diconnected from the solution pump, the hydraulic pump must be primed. For the procedure to prime the hydraulic pump, consult the “Priming Procedure”.
Page 53 8. Slowly turn the pulley clockwise to the 12 o’clock position (the top-dead center TDC) or until oil emerges around the fitting. 9. Tighten the hose’s flared fitting. 10. Spin the lower pulley clockwise and visually check for the counter-clockwise rotation of the pulley. (The counter-clockwise rotation is caused by internal pump pressure).
Page 54 CHECK CONDENSER FAN HEIGHT For proper air flow, the distance between the top edge of the fan blade and the top panel must be between 1-1/4” and 1-1/2”. If the fan is at an improper height, adjust the location of the mounting strap around the fan motor.
Page 55  Check and clean pump strainer atleast once per season as shown in Figure 36.  Check,clean or replace oil filter as needed as shown in Figure 37. Remove 4 bolts for access to strainer. CAUTION must be careful not to destroy the gasket during removal of the housing...
Page 56: Trouble-Shooting Instructions
10 TROUBLE-SHOOTING INSTRUCTIONS ELECTRONIC SYSTEM OF THE OWC-5 The electronic control board of the unit is placed inside the electrical box and is equipped with a 4 digits display, and a regulating knob (encoder). The DISPLAY (particular A) shows the operation data (example: chilled water temperature) and possible anomalies, through the visualization of the unit codes.
Page 57 If anomalies are found, the electronic control board will show them on the display and will visualize the relative flashing unit codes. (i.e. ). Until the unit code is not deactivated, display will show the unit code flashing. When there are more than one unit code deactivated, they will be visualized in alternative mode and flashing.
Page 58 MENU 2 is an “Execution Menu”; through this menu it’s possible execute actions like reset ignition control box and reset errors, as consequence of anomalies detected by the unit. The code will be visualized on the display of the electronic control board. MENU 3, 4, 5 e 6 are “Adjustment Menu”, to adjust the contained information.
Page 59 TABLE OF MACHINE CODES (FIRMWARE VERSION 2.003) The following table gives the codes that may appear on the display of the electronic board on the OWC-5: FAULT ON RESET CIRCUIT OF FLAME CONTROL UNIT CODE GENERATED Fault on reset circuit of flame control unit. RESET METHOD: Contact authorised ROBUR Technical Assistance Centre.
Page 60 HIGH AMBIENT TEMPERATURE CODE GENERATED High temperature detected by ambient temperature sensor. RESET METHOD: Reset occurs automatically when the condition that generated the code ceases, with hysteresis of 3.6 °. LOW AMBIENT TEMPERATURE CODE GENERATED Low temperature detected by ambient temperature sensor RESET METHOD: Reset occurs automatically when the condition that generated the code ceases, with hysteresis of 3.6 °.
Page 61 INSUFFICIENT ROTATION OF OIL PRESSURE PUMP CODE GENERATED Insufficient rotation of oil pressure pump. RESET METHOD: Reset occurs automatically 20 minutes after the Machine Code is generated. E 11 INSUFFICIENT ROTATION OF OIL PRESSURE PUMP CODE GENERATED 11 code generated 2 times in 2 hours of operation. Reset may be performed through the board via menu 2, menu item 1.
Page 62 CODE GENERATED The flowmeter of the cold circuit detects water in the circuit, when (and only in such a situation) the ACF is WHEN: configured for a 2pipe coldhot plant and at that moment is operating in hot mode. RESET METHOD: Reset occurs automatically when the condition that generated the code ceases.
Page 63 CODE GENERATED Interruption or short circuit of ambient temperature sensor. Reset may be performed through the board via menu 2, menu item 1. If the reset operation is unsuccessful, RESET METHOD: contact ROBUR authorised Technical Assistance Centre. Installation, Start-Up, Adjustment and Maintenance Manual...
Page 64 11 ADAPTING TO ANOTHER GAS If the type of gas indicated does not correspond to the type to be used (natural or propane gas) by unit, it must be converted and adapted to the type of gas to be used. The gas orifice (nozzle) must be changed and the gas valve must be converted.
Page 65: Appendix
12 APPENDIX ELECTRONIC CONTROL BOARD (S-60) All chiller functions and operations are monitored and controlled by the electronic control board. When power is supplied to the unit, the electronic control board will initialize the control program. “CAP” will appear on the display. “H60” will appear next, showing that the power supply to the board is 60 hertz.
Page 66 IGNITION CONTROL BOX When power is supplied to the unit and consequently to the “R” terminal on the ignition control box, the ignition control will reset, perform a self check routine, initiate full time flame sensing, flash the diagnostic LED for up to four seconds, and enter thermostat scan state. See Figure 40. When the control switch is closed, the electronic control board will energize the ignition control box starting the ignition sequence (24 volts applied to the “W”...
Page 67 LEFT SIDE OF COMBUSTION CHAMBER IGNITION TRANSFORMER NOTE: SOME DETAIL HAS BEEN REMOVED FOR CLARITY IGNITION CABLES FLAME SENSOR ANTI-SPARK INSULATORS IGNITER IGNITER GASKET Figure 41 – IGNITION TRANSFORMER, IGNITER ASSEMBLY, AND FLAME SENSOR Installation, Start-Up, Adjustment and Maintenance Manual...
Page 68: Warranty
Omni Waste Oil Chiller Limited Warranty Enviro Heat (manufacturer) warrants to the purchaser of waste oil chiller will be free from defects in materials and workmanship for the durations specified below, which duration begins on the date of delivery to the customer. Customer is responsible for maintaining proof of date of delivery. If return is deemed necessary for warranty evaluation and determination of repair or replacement, chiller is to be sent to the factory with freight prepaid.
Page 69 Installation, Start-Up, Adjustment and Maintenance Manual...
Page 70 WARRANTY CARD Please fill our, tear off and return to manufacturer Return following warranty information to manufacturer within thirty (30) days of purchase or warranty will not be valid. (Please print or type). Date of Purchase_____________________________________________________________________ Serial #__________________________ Model ____________________________________________ Customer Name_____________________________________________________________________ Address____________________________________________________________________________ City _________________________ State ________________ Zip Code ________________________...