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Section 1, Overview

1-4 Installation Manual for

Oasis

® Zephyr™ HW Heating System

Electronically-controlled system with:

Automatic safety shutdown

Manual reset overheat temperature sensor and a
thermal cutoff for overheat protection

Tactile, Touch screen control panel for operating
control and diagnostics with audible alarm

Heating control for up to four separate space heating

zones, each with its own optional thermostat

On demand, continuous domestic water heating without

the need for hot water storage

Use of engine waste heat to provide system heating

Engine heating (using an optional external pump)

Figure 1-2: Oasis® Zephyr

™

HW Heating System Overview

Содержание Oasis Zephyr Oasis Zephyr HW

Страница 1: ...Installation and Operating Manual Oasis Zephyr HW Diesel Heating System for Recreational Vehicles ...

Страница 2: ...site http www itrheat com All rights reserved No part of this manual may be reproduced or transmitted in any form by any means electronic or mechanical including photocopying and recording information storage retrieval or transmission without permission in writing from International Thermal Research Right to Modify Due to our commitment for quality and ongoing product improvement ITR reserves the ...

Страница 3: ... 4 2 4 Procedure 2 4 2 5 Remote Operating Touch Screen Panel Mounting Procedure 2 5 Section 3 Installing the Exhaust System 3 1 3 1 Before You Begin 3 1 3 2 Mounting Location and recommendations 3 2 3 3 What NOT to Do 3 4 3 4 Procedure 3 4 Section 4 Installing the Fuel System 4 1 4 1 Before You Begin 4 1 4 2 Fuel System Installation and recommendations 4 1 4 3 What NOT to Do 4 2 4 4 Procedure 4 3 ...

Страница 4: ...r Heating and Engine Heat Management 8 1 8 1 Before You Begin 8 1 8 2 Domestic Hot Water System 8 1 8 3 Engine Waste Heat Function 8 2 procedure 8 3 8 4 Engine Pre Heat Function 8 3 procedure 8 4 Section 9 Operating the Oasis Zepyhr heating System 9 1 9 1 Features of the Oasis Zephyr Heating System 9 1 9 2 Starting the Heater 9 3 9 3 Signs of Normal Operation 9 3 9 4 Main Control Board Operation 9...

Страница 5: ...put 10 10 10 23 Smokey Smelly Exhaust 10 10 10 24 A Silent Killer 10 11 Section 11 Maintenance 11 1 11 1 The First Few Weeks 11 1 11 2 Adding Coolant 11 1 11 3 Nozzle 11 2 11 4 Fuel Lines and Filter 11 2 11 5 Combustion Chamber 11 2 11 6 Checking Hoses and Tubes 11 2 11 7 Electrical System 11 3 11 8 Recommended Spare Parts 11 3 11 9 Protecting Hydronic Heating Systems 11 4 Section 14 Warranty and ...

Страница 6: ...ring the Fan s Aquastat 5 2 Figure 5 2 Mounting a Spacesaver Fan 5 5 Figure 5 3 Installing a Relay for Additional Fan Amperage 5 5 Figure 6 1 Sample Wiring Diagram for Electrical Elements 6 3 Figure 6 2 Wiring for a Fan Speed Switch 6 8 Figure 6 3 Wiring Diagram V2001 6 9 Figure 7 1 Oasis Zephyr HW Heating System Overview 7 3 Figure 7 2 Plumbing Zephyr for 3 Zones opt summer loop 7 4 Figure 7 3 Th...

Страница 7: ...o when you first receive your heater It also covers critical information you need to know before beginning the installation including how to protect your warranty and tools and equipment needed Figure 1 1 Oasis Zephyr HW Heating System Section 1 Some of the figures in this manual represent a typical installation but other configurations or methods may be acceptable If in doubt contact ITR for assi...

Страница 8: ...dures in this manual to ensure maximum performance of the heater and that you and or your customers enjoy a warm comfortable environment and plenty of hot water when needed 1 2 Protect Your Warranty This document reflects approved installation techniques methods and materials and applies only to ITR equipment The heater and supplied components are only guaranteed by ITR if the entire system has be...

Страница 9: ...eatures of the heating system include 1500 Watt 120 VAC North America electric element for a supplemental and backup heating source when the vehicle is connected to a power source High temperature stainless steel burner and water jacket to prevent premature warping or burnout Internal circulation pump for heating loop and hot water heat exchanger Insulated enclosure retains heat and minimizes nois...

Страница 10: ...tion o Tactile Touch screen control panel for operating control and diagnostics with audible alarm Heating control for up to four separate space heating zones each with its own optional thermostat On demand continuous domestic water heating without the need for hot water storage Use of engine waste heat to provide system heating Engine heating using an optional external pump Figure 1 2 Oasis Zephy...

Страница 11: ...k Sheet 1 5 Equipment Tools and Skills As the user and or installer you must be qualified and authorized to do the installation which requires mechanical aptitude and electrical knowledge Make sure you comply with existing RVIA industry practices using the highest and most recent standards and codes Good workmanship is essential Refer to Section 1 Overview sub Section 1 2 Protect Your Warranty You...

Страница 12: ...mostat s depending on the number of zones for temperature regulation of each zone up to 4 A self priming pump for filling the system with heat transfer fluid after installation Cabin fans or passive radiators for distributing heat to the living spaces refer to Figure 1 3 for a typical series plumbed layout using the Oasis Zephyr HW heater 1 6 Testing and Inspection After all components have been p...

Страница 13: ...Section 1 Overview International Thermal Research 1 7 Figure 1 3 Oasis Zephyr HW Typical Series Plumbed Layout ...

Страница 14: ...outlet location and maximum acceptable length including all 90 degree bends Refer to section 3 2 Potential for vibration and jarring Fuel storage location Most efficient plumbing runs Safe and convenient access for maintenance Number and location of interior fans Location of other equipment to be installed or connected to Oasis Zephyr including control box heat exchangers overflow tank batteries e...

Страница 15: ...uminum air intake collar part 10089 Securely clamp and seal all air inlet hose connections Ensure the supply of combustion air to the appliance is not obstructed or cut off The heater must be mounted in an area that provides unrestricted access to the front panel top access panel and access to fuel water power and exhaust connections There should be at least 12 of clearance on the top of the heate...

Страница 16: ...nt so that no exhaust from the heater will infiltrate the living areas Choose a sturdy surface in a location that won t be unduly affected by vibration and the jarring of rough roads Mount the unit with the front panel facing out and accessible Facing out simplifies installation maintenance and servicing There must be at least 12 of accessibility on top of the heater for removal of the panel and s...

Страница 17: ...he service panels or creates interference with the top mounted connections 2 4 Procedure After choosing the mounting location for the heater unit 1 Mount the unit horizontally 2 Secure the heater in place against the wall floor or a mounting platform using the 2 supplied mounting brackets that are bolted to the heater using the existing bolts on each side of the bottom tray of the heater The brack...

Страница 18: ...nel Mounting Procedure The Remote Operating Panel is mounted inside the Coach in an easy to access location An opening for the remote panel must be cut in the wall or mounting panel The Remote Operating Panel will be screwed in place using the 4 mounting holes Figure 2 3 Touchscreen Operating Panel Mounting ...

Страница 19: ...the Oasis Zephyr HW in an enclosed area unless there is adequate ventilation Isolate the Oasis Zephyr HW in a closed compartment Air from this compartment must be allowed infiltrate any living areas of the vehicle Heater exhaust can reach high temperatures never install exhaust parts close to combustible materials or through a combustible wall or ceiling without fireproof protection Heater exhaust...

Страница 20: ...exiting the heater the exhaust run includes one 90 bend the total exhaust run cannot be longer than 10 feet The outlet of the exhaust pipe must be located so the exhaust exits directly out from under the vehicle and does not accumulate under the vehicle Exhaust outlets cannot be located under an opening window inlet vent or a slide out Recommendations for Installation Combustion air must be drawn ...

Страница 21: ... exhaust fittings pipe used to extend the assembly of supplied parts must have a minimum of 1 25 ID Solid steel exhaust tubing or other approved exhaust tubing is recommended Stepped bolt style band clamps are recommended for joining the tubing as they apply firm even pressure The exhaust must be supported at least every 3 of its installed length All non threaded exhaust connection points must use...

Страница 22: ... with the muffler using appropriately rated sealant if necessary and proper clamps If vibration isolation mounts are used they must be rated for high temperature The exhaust must be supported at least every 3 of its installed length 5 Find a suitable location to mount the air intake adapter part 10089 Drill a 2 hole through the floor Insert the adapter through the floor from underneath use 3 screw...

Страница 23: ...g the Exhaust System International Thermal Research 3 5 Figure 3 1 Oasis Zephyr HW exhaust parts and typical configuration Figure 3 2 Oasis Zephyr HW typical fresh air intake configuration and optional Air Intake Silencer ...

Страница 24: ... HW is not rated for use in an explosive environment Never share the fuel supply line to the Oasis Zephyr HW with any other fuel burning device 4 2 Fuel System Installation The fuel pump in the Oasis Zephyr HW has a maximum flow capacity of 32 GAL Hr and a maximum pressure of 11 5 psi A 10 micron fuel filter is recommended Select a fuel filter based on these requirements Recommendations for Instal...

Страница 25: ...ust be checked for leaks upon initial installation and periodically as part of normal maintenance A primary UL and or CSA approved 10 micron fuel oil filter not provided must be installed in the fuel supply line between the tank and the Oasis Zephyr HW in a manner that ensures easy access for maintenance A secondary fuel filter is mounted inside the fuel block behind the fuel nozzle Both filters m...

Страница 26: ...ompartment wall next to the Oasis Zephyr HW inline between the fuel tank and the heater 2 Connect the fuel supply line to a dedicated pick up fitting on the main diesel fuel tank 3 Inspect the supply fuel line for any loose connections or damage All fuel fittings must be airtight 4 If desired install a shut off valve on the tank side of the fuel filter to allow shutdown and filter service ...

Страница 27: ...the floor as possible It is recommended that an individual temperature sensor aquastat be installed on the fans to prevent the fan from blowing cold air while the heat transfer fluid is being heated by the burner Refer to Sec 5 2 Features and Fig 5 1 Wiring the Fan s Aquastat Note The total number of heating fans used with the Oasis Zephyr HW is limited by combined BTU output and fan current draw ...

Страница 28: ... be supplied with an aquastat which prevents the fan from operating and blowing cold air when the system heat transfer fluid is below 120 F 49 C Figure 5 1 shows how to wire up the aquastat Figure 5 1 Wiring the Fan s Aquastat If a passive radiant heat system is desired i e baseboard or fin and tube configurations consult ITR for recommended installation procedures and design Multiple Zone Heating...

Страница 29: ... sheet metal screws or wood screws to mount the fan units See Figure 5 2 Mounting a Spacesaver Fan Two Speed Fan Switches to enable low and high speed settings from inside the coach for use with a variety of ITR Cabin fans Three Speed Fan Switches to enable low medium and high speed settings from inside the coach for use with the ITR defrost heater Air Ducting to allow for installation of fans in ...

Страница 30: ... bulkhead away from windows and heating fans 5 5 Procedure After choosing the appropriate mounting location and configuration 1 Mount the fan using 10 sheet metal screws or wood screws see Figure 5 2 Mounting a low profile Cabin Fan 2 If you are using ducting and a dual air outlet plate for any fan limit the total length of duct for both outlets to 36 for optimum air output 3 Select the appropriat...

Страница 31: ...Section 5 Installing Fan Heaters International Thermal Research 5 5 Figure 5 2 Mounting a Low Profile Cabin Fan Figure 5 3 Installing a Relay for Additional Fan Amperage ...

Страница 32: ... accordance with CSA Standard C22 1 Canadian Electrical Code Part l or the National Electric Code ANSI NFPA 70 6 2 Oasis Zephyr 12 VDC The following applies to the 12VDC power supplied to the Oasis Zephyr There is one electrical terminal on the main control board for the primary 12 VDC power positive red and negative black There are no direct 12 VDC power connections to the heater itself Primary D...

Страница 33: ... 240 VAC The Oasis Zephyr HW is equipped with one 1500 Watt 120 VAC North America or one 1500 Watt 240 VAC Europe electric immersion element The connections for the electrical supply are on the top left side of the heater beside the heat transfer fluid overflow outlet The plate that covers the AC wiring includes a wire strain relief and is labelled AC power There are three 14 gauge stranded copper...

Страница 34: ...lating pump will turn on and circulate the heated coolant when there is a call for heat thermostats or domestic water 3 The circulating pump will continue to operate until there is no longer a call for heat Do not operate the electric element until coolant is added to the heater and all trapped air has been removed 6 4 Electrical Components Control box and board The main control board is contained...

Страница 35: ...mostats up to four Additional 4 zone board available for larger applications o Fan heaters o Fan speed switches between F1 F4 and the fans o Internal Circulation pump 12 vdc o Domestic water aquastat o Engine heat aquastat Fault bypass and reset buttons These buttons allow testing of the heating system by by passing the fault sensing circuit This fault bypass feature is engaged by depressing and h...

Страница 36: ... heating element supplying adequate heat to the system The operating circuitry of the burner in the heater itself is non functional In the ON position all operations and features of the heater and control board are functional In normal operation the service switch is left ON NOTE The service switch has an additional short circuit fault 3 4 5 6 8 reset function This is performed by turning the serv...

Страница 37: ... the normal system controls after it has completed its purge When running in bypass mode never leave the heater unattended 6 6 Procedure Consult the following table for required wire gauges and lengths Consult Figures 6 4 to view how various components are connected CONDUCTOR SIZES GAUGE FOR 3 DROP IN VOLTAGE Length of Conductor from Source of Current to Device and Back to Source Feet 10 15 20 25 ...

Страница 38: ...tive terminal of the battery or to an adjacent chassis ground location 6 Wire the thermostats for the fan heaters to the terminals in the control board using 18 gauge wire minimum and a single 8 fork connection See Figure 6 4 for the correct terminals T1 to T4 and T C common 7 If domestic water heating engine waste heat or summer winter loop functions of the heater are required See Sections 9 and ...

Страница 39: ...Section 6 Wiring the Electrical System 6 8 Installation Manual for Oasis Zephyr HW Heating System Figure 6 2 Wiring for a Fan Speed Switch ...

Страница 40: ...Section 6 Wiring the Electrical System International Thermal Research 6 9 ...

Страница 41: ...n of potable water occurs due to a leak in the heat exchanger which can be caused if the fresh water in the system is allowed to freeze For efficient Oasis Zephyr Heating System operation Minimize heat loss from the Oasis Zephyr and hoses Balance the heat output for each of the zones Balancing can be done by adjusting the number and size of the cabin fans installed in each space heating zone Figur...

Страница 42: ... 4 ID heating loop return hose to the 3 4 brass hose barb connection labeled Heat Loop Return Ensure proper direction of flow 3 All connections must be clamped constant tension spring clamps are recommended as they do not damage the hose and retain clamp tension while the hose compresses All connections must be tested to be leak free ITR warranty does not cover damage caused by leaks from connecti...

Страница 43: ... flow is adequate through the Oasis Zephyr Heating System The flow rate through the space heating loop should be at least 2 5 GPM A large temperature difference between each subsequent fan in the space heating loop when the Oasis Zephyr is running and up to normal operating temperature is an indication of inadequate flow In a properly flowing system each fan in the space heating loop will have an ...

Страница 44: ...s one of the most critical parts of the system Never let the pump run dry or damage will occur to the rotor This is not covered under warranty Don t use low quality heater hose Don t let the hose come into contact with solvents which may cause it to soften and swell If there is any risk that solvents may contact the hose insert it into PVC plastic tubing for protection Don t let the hoses come in ...

Страница 45: ... such are made with a crimped Pex to Pex connection The maximum water supply pressure to the heater is 150 PSI 10 bar The Hot water outlet temperature is regulated by an internal mixing valve factory set at 120F 49 C If needed this valve can be adjusted between a range of 75F 24 C to a maximum of 145F 63 C See Figure 7 4 Potable Hot water system plumbing ITR warranty does not cover damage caused b...

Страница 46: ...heating and hot water The Engine Heat Supply Return connections are located on the back of Oasis Zephyr and can be made using 1 2 MPT x 1 2 hose barb or 1 2 MPT x 3 4 hose barb fittings If the pre heat function is required an additional externally mounted pump is installed This pump circulates engine coolant through the Oasis Zephyr engine heat exchanger when the engine is turned OFF A separate En...

Страница 47: ...re for Filling Purging the Oasis Zephyr Heating System 1 Do not operate the Oasis Zephyr until the entire circulation system has been filled with the proper heat transfer fluid solution and all trapped air has been bled from the system An inadequate mixture may cause system circulation problems and potential system damage and or personal injury Use only a non toxic propylene glycol based coolant w...

Страница 48: ... off filling pump and place the pump circulation jumper on the control board circuit board onto both pins The Oasis Zephyr internal pump will run and circulate fluid through the entire system The fluid level in the overflow bottle will drop as the air in the system is displaced with fluid Turn on the filling pump and refill the overflow bottle to the Minimum when cool level 4 When this level is re...

Страница 49: ...er to Figure 6 4 wiring schematic in Section 6 Wiring the Electrical System 8 2 Domestic Hot Water System The components needed for installation and operation of the domestic hot water system include Heat exchanger The stainless steel flat plate heat exchanger is UL and CSA approved for domestic water heating This is installed inside the Oasis Zephyr HW for hot water output once the heater reaches...

Страница 50: ...ne and to use waste heat produced by the engine While running a liquid cooled engine produces a large amount of heat some of this heat can be captured by the Oasis Zephyr and used to heat water and or provide space heating An aquastat attached to the heat exchanger wired to the A1 terminal on the main board see Section 6 Pg 6 9 Figure 6 3 Wiring Diagram will start the internal circulating pump if ...

Страница 51: ... will operate normally 3 The circulating pump will continue to operate until the engine aquastat has cooled down or all thermostats or domestic water aquastat are satisfied A manual switch can be wired in series with this aquastat to shut down the pump sooner if required 8 4 Engine Pre Heat Function As an option the heat exchanger can also be used to pre heat an engine before starting it The Oasis...

Страница 52: ...rd that connects to the vehicle s power source beside the battery connection see Figure 6 4 in Section 6 Wiring the Electrical System The switch circuit should include a 5 amp fuse on the power side 3 Connect the ground wire of the engine water pump to battery negative 4 To test the engine pre heat function turn on the heater and allow it to come to temperature about 10 minutes Turn on the manual ...

Страница 53: ...heating areas The Oasis Zephyr provides domestic hot water using an integral heat exchanger which also makes use of engine waste An optional engine preheat feature is provided using an additional externally mounted engine coolant circulation pump for a visual reference of the features of the Oasis Zephyr see Figure 9 1 Oasis Zephyr Heating System overview Main features of the Oasis Zephyr Built in...

Страница 54: ...e fuel system with built in fuel pump Fuel efficient burner capable of burning a wide variety of diesel based fuels CSA UL certified for diesel 1 and 2 Exhaust has minimal smoke and smell Fan assisted sealed combustion chamber is designed to use outside combustion air Simple low amperage draw ignition Electronically controlled system with automatic safety Shutdown Manual resettable aquastat for sa...

Страница 55: ...ng normally When the service switch on the side of the control box is switched ON and the ON button is illuminated on the Touchscreen Remote the combustion air intake fan will run for a brief period together with the circulating pump Whenever the combustion fan is running the pump is also running the green LED at the bottom of the LED display indicates the pump is running The combustion fan will s...

Страница 56: ...s work properly place a short piece of hose or a tube over the sintered bronze compressor inlet filter Put your finger over the end of the hose tube to stop the flow of air into the compressor This will stop the flow of fuel through the nozzle and the burner will flame out If you continue to block the air inlet the heater will try to restart two times failing to do so it will shut down stopping th...

Страница 57: ... are controlling the activation of the heating element When the tank reaches a certain temperature the heating element will automatically shut off The 1500 watt heating element provides about 5000 BTU and draws 12 5 Amps from the 120 VAC circuit 9 7 Activating the Cabin Fan Heaters through the Thermostats Burner or AC Heat or Engine Heat Source Available Any thermostat connected to the Zone Contro...

Страница 58: ...ons of incoming supply water and maintain the temperature at which it is set However in some cases the temperature of the incoming water and the flow rate demand of multiple faucets may limit the ability of the Oasis Zephyr to provide hot water at the temperature setting of the mixing valve even if the mixing valve is set to its maximum This is a normal operating characteristic of any on demand co...

Страница 59: ...ostic code Note Component faults can only be reset using the service switch 9 12 Electrical Noise Noise is an unwanted electrical signal which produces undesirable effects in the electronic circuits of the control system and we must be aware of techniques to minimize the electrical noise on these controllers The majority of problems stem from crude wiring practices and techniques which allow coupl...

Страница 60: ...ing parallel or in close vicinity to each other This is especially true when the wires from several different circuits are bundled together in order to make the system wiring appear neat Electrostatic Capacitive Coupling is a function of the distance the wires run parallel with each other the distance between the wires and the diameter of the wire The best way to eliminate these is to run separate...

Страница 61: ...ts operation should perform the service tune up It is recommended that a certified dealer be contacted for this service if a local dealer is not available contact ITR for information on service resources As a general guide the regular maintenance items such as the igniter fuel filters nozzle filter and external filter and air compressor filter should be replaced as opposed to inspected and cleaned...

Страница 62: ...he Oasis Zephyr from cold temperatures and corrosion by using a proper mixture of anti freeze and water Use only a non toxic propylene glycol based coolant with additives generally recognized as safe GRAS by the FDA Read and follow the anti freeze manufacturer s instructions for the type of anti freeze and mixture recommended for your application Note that any potable water in the Oasis Zephyr wil...

Страница 63: ...point the fault Once the fault has been corrected it can be reset by switching the service or remote switch OFF then ON again The diagnostic codes are described below 10 2 Power On Green The POWER ON indicator is lit whenever the service switch on the control box is ON and if the remote panel is switched ON a small red LED near the lower right hand side of the digit on the remote panel will also g...

Страница 64: ...l board will purge the system with the combustion fan and circulating pump for two minutes If the remote switch is put in the ON position the control board will resume operation and a small red LED will glow near the lower right hand corner of the digit If there is no diagnostic code displayed or small LED glowing Make sure the service switch is ON Make sure the remote switch cable is plugged into...

Страница 65: ...he heater will resume normal operation If the heater fails to resume operations check the thermostat and their connections 10 8 0 Voltage Low or High The battery or power supply voltage is below 11Vdc or above 15Vdc The burner will shut down The diagnostic code 0 will be displayed The buzzer will sound for 10 seconds The control board will purge the system with the combustion fan and circulating p...

Страница 66: ... service or remote switch OFF then ON again If the fault does not reset check for a faulty aquastat and proper ground If diagnostic code 1 lights up and the heater is not in an overheat condition check the connection from the heater ground wire to the battery The ground wire should be a minimum 10 gauge and connected directly to the battery 10 10 2 Fuse Blown One of the fuses on the control board ...

Страница 67: ... the service switch OFF then ON again The remote panel switch does not reset short circuit faults 10 10 4 Igniter The igniter is open or shorted The burner will shut down The diagnostic code 4 will be displayed The buzzer will sound for 10 seconds The control board will purge the system with the combustion fan and circulating pump for two minutes In order to restart the burner check the igniter an...

Страница 68: ... fault 10 14 6 Water Pump The water pump is shorted The burner will shut down The diagnostic code 6 will be displayed The buzzer will sound for 10 seconds The control board will purge with the combustion fan for two minutes In order to restart the burner check the water pump Then reset the fault by switching the service switch OFF then ON again The remote panel switch does not reset a short circui...

Страница 69: ...e section 10 3 If the external fuel filter is dirty it could create restriction in the fuel line and cause flame faults Inspect and replace as necessary A flame fault can also be caused by starvation of fuel if the heater s fuel supply is shared with other equipment Check the connections on the fuel tank fuel pump and the regulator Check all of the fuel lines for holes or cracks Make sure the nozz...

Страница 70: ...pump for two minutes In order to restart the burner check the air compressor Then reset the fault by switching the service switch OFF then ON again The remote panel switch does not reset a short circuit fault 10 17 Bypass Mode The bypass mode is a service feature to be used by authorized service personnel only The bypass mode overrides the operating aquastat remote switch voltage fault fuse blown ...

Страница 71: ...board may be defective 10 20 Test Points The test points on the electrical control board allow for testing and troubleshooting of the ITR heater s electrical system You will need a voltage meter to plug into the test points Test Point Component Results Optimal Condition TP1 Flame Sensor A voltage meter should show a voltage of about 2 volts if the flame sensor detects a flame If not the voltage wi...

Страница 72: ...oltage fault TP11 Remote Switch The voltage will be 0 volts when the remote switch is off and between 4 8 and 5 volts when the switch is on TP10 Reset The voltage will be 0 volts when the reset button is pressed and between 4 8 and 5 volts when the reset button is not engaged TP13 Thermostats or Domestic Water The voltage will be 0 volts when the thermostat or domestic water system calls for heat ...

Страница 73: ...nventilated heated space the heater flame will become increasingly yellow as the oxygen in that space is consumed An oxygen starved flame produces excessive carbon monoxide CO some of which can easily escape the exhaust Carbon monoxide is a colorless odorless tasteless gas produced any time you burn a carbon based fuel such as gasoline wood charcoal kerosene propane or diesel It disperses freely i...

Страница 74: ...occurs the heater requires service Section 2 1 All components including frames fuel filters solenoid valves fuel pumps blowers shall be of a type suitable for the application i e resistant to corrosion in salt atmosphere capable of proper operation under conditions of vibration shock and the pitch and rolling action of the boat Refer to applicable ABYC standards Gravity hot water gravity hot air a...

Страница 75: ...verify the proper operation of all components 11 2 Adding Heat Transfer Fluid Antifreeze Once the system has been filled with water and purged of all air during the installation procedure you need to operate the heater at normal temperatures and check for leaks If you do not find any add antifreeze to lubricate the pump and prevent the water system from corroding or freezing in cold weather See Se...

Страница 76: ...problems such as clogging will result in a poor flame small and blue Carefully disassemble Hold nozzle vertically and turn stem counter clockwise Clean distributor orifice and air slots of any debris using solvent and high pressure air Check O rings for nicks and replace if in doubt A leaking O ring will allow air into the fuel causing popping of the flame 11 4 Fuel Lines and Filter You should che...

Страница 77: ...e getting 12 volts from the battery Check for corrosion of wires 11 8 Recommended Spare Parts Like any piece of machinery your Oasis Zephyr HW heater will need servicing from time to time A suggested maintenance schedule page 11 4 lists suggested maintenance items and intervals The following is a list of parts recommended to have on hand Fuel filter cartridge Air filter Fuel nozzle for your model ...

Страница 78: ...AIR COMPRESSOR FUEL PUMP COMBUSTION FAN MOTOR SEASONALLY INSPECT FOR LEAKS CORROSION WEAR Figure 11 1 Maintenance Schedule 11 9 Protecting Hydronic Heating Systems The advantage of closed hydronic heating systems is that as long as there are no leaks i e no need for constant make up water the fill neutralizes that is it reaches equilibrium The long term result is minimal scale build up and insigni...

Страница 79: ...ater than 7 and less than 10 5 The key to preventing corrosion is to make sure that the heating system is free of leaks and there is no need to replace it with fresh oxygen rich boiler fill water Corrosion inside a hydronic heating system stops quite quickly as the fill water stabilizes and becomes oxygen starved The pH should be measured at least annually Since most hydronic heating systems are c...

Страница 80: ...ll be a valuable reference if you need warranty repairs in the future Limited Warranty The following warranties are in lieu of all other warranties and conditions ITR makes no other warranties representations or conditions express or implied Expressly excluded are all implied or statutory warranties or conditions of merchantability of fitness for a particular purpose and those arising by statute o...

Страница 81: ... the Product was originally purchased about a warrantable failure and to obtain prior written approval for warranty repair Original serial number on Product or electrical control board has been removed altered or is unreadable Product has been modified or uses non standard parts not approved by ITR Product has been abused such as by dropping it damaged vandalized or has received improper maintenan...

Страница 82: ...t problems and repair your Product Such service calls are at the Owner s expense Regardless you must obtain written approval from ITR or the Dealer for any warranty repair before it is undertaken All repairs done under warranty are subject to the terms and conditions of the flat rate manual Returns If a service call by an authorized service person is not feasible the Owner must do the following to...

Страница 83: ...ot be relied upon without an independent verification of its applicability to the customer s particular situation For customer service or other information contact IN CANADA IN THE UNITED STATES 2431 Simpson Road 5305 NE 121st Ave Suite 401 Richmond BC Canada V6X 2R2 Vancouver WA USA 98682 Tel 1 800 755 1272 or 604 278 1272 Tel 1 800 993 4402 or 360 993 4877 Fax 604 278 1274 Fax 360 993 1105 Email...

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