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Summary of Contents for ITR OASIS NE
- Page 1 OASIS NE Heating ® System Installation and Operating Manual Diesel and AC Heating System for Recreational Vehicles and Yachts CAN/CSA-C22.2 No.110-94 (R2014) CSA B140.10-06 (R2015), CSA B140.0-03 (R2013) UL307A (Edition 8), UL174 (Edition 11)
- Page 2 International Thermal Research Right to Modify: Due to our commitment for quality and ongoing product improvement, ITR reserves the right to modify or change without notice, materials, applications, equipment, accessories, and/or prices.
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Page 3: Table Of Contents
Table of Contents Table of Contents Section 1, Overview ..........1-1 ® Unpacking the Oasis NE Heating System ..1-2 Protect Your Warranty ........1-2 ® Oasis NE Heating System Features ....1-3 Critical Factors ..........1-5 Equipment, Tools and Skills ......1-6 Testing and Inspection ........ - Page 4 Table of Contents Section 5, Installing Fan Heaters ....... 5-1 Before You Begin .......... 5-1 Fan System Operation ........5-2 Features .............. 5-2 Multiple Zone Heating ........... 5-3 Accessories and Components Needed ...... 5-3 What NOT to Do ........... 5-4 Mounting Locations ........
- Page 5 Table of Contents ® Section 8, Operating the Oasis NE Heating System .. 8-1 ® Features of your Oasis NE Heating System ..8-1 Operating Instructions for the ® Oasis NE Heating System ......8-3 Turning the Power to the ®...
- Page 6 NE Heating System ......1-1 ® Figure 1-2 Oasis NE Heating System Overview ..1-5 Figure 2-1 Oasis NE Heating Dimensions ....2-3 Figure 2-2 Oasis NE Mounting Brackets ...... 2-5 Figure 2-3 Zone Control Board ........2-6 Figure 2-4 Remote Operating Panel Mounting ....
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Page 7: Section 1, Overview
Section Overview ® Thank you for purchasing the Oasis NE Heating System for recreational vehicles and yachts (for use on vessels over 65 feet in length). ® NOTICE The Oasis NE Heating System is CSA/UL certified only for installation into Recreational Vehicles, Manufactured Homes, and Mobile housing. -
Page 8: Unpacking The Oasis ® Ne Heating System
This document reflects approved installation techniques, methods, ® and materials, and applies only to ITR equipment. The Oasis Heating System is only guaranteed by ITR if the entire system has been installed according to the requirements and recommendations set out here. -
Page 9: Oasis ® Ne Heating System Features
Any loss of service or damage as a result of any unapproved modification is the responsibility of the installer. ITR accepts no liability for any damage or loss of service resulting from unapproved modifications. - Page 10 Section 1, Overview A high-temperature, stainless steel burner and stainless steel jacket. 7.5 US gallon, welded, insulated stainless steel coolant tank that minimizes heat loss and optimizes heat recovery. Domestic water flow switch for quick response to domestic hot water demand.
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Page 11: Critical Factors
Ability for technician to easily access and service the product, especially fuel, plumbing, and electrical systems. After installation, ability to purge water and fuel lines and inspect/test entire system using the ITR-supplied Inspection Check Sheet. International Thermal Research... -
Page 12: Equipment, Tools And Skills
#10 sheet metal screws or wood screws to mount fan units inside the occupied areas. Heater hose (to connect Oasis NE hose fittings to interior fans). Potable water hose/PEX to connect the Oasis NE-S potable water hose/PEX fittings to the domestic water system. -
Page 13: Testing And Inspection
Section 1, Overview Up to five (5) thermostats (DC compatible) to allow temperature regulation of the heating zones. Testing and Inspection After all components have been properly installed according to standard practices, RVIA or ABYC (for yachts) standards, and the recommendations of this Installation and Operating Manual, the ®... - Page 14 Section Mounting – Oasis NE Heating ® System Before You Begin ® Plan the location of the Oasis NE Heating System and all its major components in advance to ensure the chosen locations are compatible with installation requirements and within the technical specifications.
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Page 15: Section 2, Mounting The Oasis Ne Heating System
® Oasis NE Heating System is 12.3”H x 18.8”W x 29.7” D. (31.25 cm x 47.75 cm x 75.4 cm), see Figure 2-1: Oasis NE Dimensions. ® Oasis NE Heating System must be installed in a compartment which is completely isolated from the atmosphere of living spaces. - Page 16 Allow 1” clearance on the right side for attaching the mounting brackets. ® Oasis NE Heating System must be mounted horizontal and level using eight, 1/4” through bolts and 1” diameter fender washers, lock washers and nuts. Figure 2-1: Oasis NE Dimensions International Thermal Research...
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Page 17: What Not To Do
® Section 2, Mounting the Oasis NE Heating System ® Oasis NE Heating System must not be installed or operated in any ! DANGER compartment with flammable gases. ® If the Oasis NE Heating System is going to be mounted in the ! WARNING engine compartment, check for adequate ventilation. -
Page 18: Figure 2-2 Oasis Ne Mounting Brackets
Section 2, Mounting the Oasis NE Heating System through bolts (or wood screws), and 1” diameter fender washers, lock washers, and nuts. (See Figure 2-2: Oasis NE Mounting Brackets.). Figure 2-2: Oasis NE Mounting Brackets 2.6 Zone Control Board Mounting Procedure ... -
Page 19: Remote Operating Panel Mounting Procedure
® Section 2, Mounting the Oasis NE Heating System Figure 2-3: Zone Control Board Remote Operating Panel Mounting Procedure The Remote Operating Panel is mounted inside the Coach or Yacht, in an easy to access location. An opening for the remote panel must be cut in the wall or mounting panel. -
Page 20: Section 3, Installing The Exhaust System
For efficient and safe operation of the Oasis NE Heating System follow all recommendations for properly installing the exhaust. Any deviations from these must be approved in advance by ITR. Although the heater’s exhaust produces very low carbon monoxide DANGER emissions, caution is still advised: ®... -
Page 21: Recommendation For Installation
Section 3, Installing the Exhaust System ® When mounting the Oasis NE Heating System in a coach, the typical mounting location for the exhaust outlet is under the floor of the heater compartment and out from the side of the coach, or out from the other side of the coach, directly ®... - Page 22 The combustion air must be drawn from outside the coach or yacht. The maximum length of each air-intake tubing is 7 feet. Do not exceed this recommendation. Use an ITR-manufactured muffler with a straight-through design. No other muffler is acceptable. ® ...
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Page 23: What Not To Do
Don’t use more than 8’ of exhaust pipe if 180° of total bends are present, excluding the one bend at the outlet of the heater. Don’t use any mufflers not supplied or approved by ITR. Don’t use too much muffler cement or exhaust sealant that you block the exhaust system. - Page 24 Section 3, Installing the Exhaust System ® Securely seal the exhaust piping to the Oasis NE Heating System fitting using an approved exhaust clamp. Connect the exhaust piping in series with the muffler, using heavy-duty exhaust clamps. If you use vibration isolation mounts they must be high temperature.
- Page 25 Section 3, Installing the Exhaust System On a yacht, make sure the thru hull is at least 30” above the waterline and the exhaust must be goose-necked, see Figure 3-3: The Exhaust Goose Neck Configuration. This unit is not to be used with an air filter. The use of an air WARNING filter can restrict the combustion air and result in improper and unsafe operation.
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Page 26: Figure 3-3 The Exhaust Goose Neck Configuration
Section 3, Installing the Exhaust System Figure 3-2: Exhaust Hole Location & Mounting Template Figure 3-3: The Exhaust Goose Neck configuration International Thermal Research... -
Page 27: Section 4, Installing The Fuel System
For efficient and safe operation of the Oasis NE Heating System, follow all recommendations for properly installing the fuel system. Any deviations from these must be approved in advance by ITR. ® Use only diesel #1 and #2 in the Oasis NE-S Heating System. -
Page 28: What Not To Do
Section 4, Installing the Fuel System The following is recommended for the fuel system installation: The fuel supply from the fuel storage tank to the fuel inlet must be NOTICE from a dedicated fuel pickup on the top of the tank. ... -
Page 29: Procedure
Section 4, Installing the Fuel System Procedure To complete the fuel system installation: Install an inline fuel filter. The optimal location is on a ® compartment wall next to the Oasis NE, inline between ® the fuel tank and the Oasis Connect the fuel line to the dedicated fitting on the main diesel fuel tank. -
Page 30: Section 5, Installing Fan Heaters
Section Installing Fan Heaters Before You Begin ITR makes a variety of 12 VDC fan heaters for individual cabins or areas: The Small Space Cabin Fan (6095) draws 0.5 Amps and has an output of 4000 BTU/h. The Low Profile Cabin Fan (6094) draws 1 Amp and has an output of 6000 BTU/h. -
Page 31: Fan System Operation
Section 5, Installing Fan Heaters Fan System Operation ITR fans consist of a 12 VDC brushless fan and heater coil similar to a radiator. When the heater unit comes on, the fan draws ambient air from the interior, blows it through the heater coil and back into the interior through a vent. -
Page 32: Multiple Zone Heating
Fan Switches — to enable low, medium and high-speed settings from inside the coach or yacht; for use with the ITR defrost heater. Air Ducting — to allow you to install fans in a remote location (i.e. not directly adjacent to the interior space to be heated) and duct the heated air to its output location. -
Page 33: What Not To Do
Allow a minimum 16 square inch (100 cm sq.) opening in the fan heaters’ mounting compartment to allow sufficient intake of air. ITR’s Cabin Fans (Low Profile Cabin Fan pictured at left) are attached to a mounting plate. They are designed to mount horizontally on a flat surface. -
Page 34: Procedure
Section 5, Installing Fan Heaters Procedure After choosing the appropriate mounting location and configuration: Mount the fan using #10 sheet metal screws or wood screws, see Figure 5-2: Mounting a Low Profile Cabin Fan. 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‖... -
Page 35: Figure 5-2 Mounting A Low Profile Cabin Fan
Section 5, Installing Fan Heaters Figure 5-2: Mounting a Low Profile Cabin Fan Figure 5-3: Installing a Relay for Additional Fan Amperage ® The Oasis NE Heating System... -
Page 36: Section 6, Wiring The Electrical System
120VAC Power 12VDC battery ® Oasis NE Heater Oasis NE Remote Operating Panel Oasis NE Zone Control Board Thermostats Cabin Fans ® To review the wiring for the Oasis NE Heating System, refer to the wiring diagram shown in Figure 6-1: System Wiring. -
Page 37: Ne 12 Vdc
Section 6, Wiring the Electrical System Oasis NE Zone Board Bypass Switch Power Zone 1 Fan Zone 1 Thermostat Zone 2 Fan Zone 2 Thermostat Zone 3 Fan Zone 3 Thermostat Zone 4 Thermostat Zone 4 Fan Remote Zone 5 Thermostat... -
Page 38: Oasis ® Ne 120 Vac
Section 6, Wiring the Electrical System Primary DC power should originate from a dedicated connection on WARNING the house battery bank. A 20 amp fuse must be included close to and inline from the battery to the positive (red) connection on the ®... -
Page 39: 6.4 Wiring The Zone Control Board
Section 6, Wiring the Electrical System 6.4 Wiring The Zone Control Board Primary 12 VDC power to the Zone Control Board should originate after the master disconnect switch from a dedicated connection on the house battery bank. A 25 amp fuse or breaker must be included inline from the power source to the positive connection on the Zone Control Board. -
Page 40: Thermostat Leads
Section 6, Wiring the Electrical System Thermostat Leads The power lead to the thermostat should be fused (1 Amp) and attached to a power terminal (not provided) that is connected to the battery. The return lead from each thermostat is to be attached to one of the trailing thermostat leads, color coded for zones, from the thermostat and cabin fan 14 pin connector plug on the zone control board. -
Page 41: Section 7, Plumbing The System
For efficient and safe operation of the Oasis NE Heating System, follow all of the recommendations in this section for properly installing the plumbing system. Any deviations from these must be approved in advance by ITR. ® The Oasis NE Heating System must use a non-toxic, propylene ... -
Page 42: Coolant Plumbing Installation
Section 7, Plumbing the System Coolant Plumbing Installation The plumbing installation should consider the following: ® The Oasis NE has an overflow fitting located on the top of the unit. Ensure a four (4) quart minimum overflow bottle is attached to the overflow fitting. -
Page 43: Figure 7-1 Oasis ® Ne Overview
Section 7, Plumbing the System Figure 7-1 ® Oasis NE Overview Figure 7-2: Plumbing ® For 5 Zones Oasis International Thermal Research... -
Page 44: What Not To Do
Section 7, Plumbing the System All plumbing lines must be routed and secured to prevent damage, chafing and kinking. ® Ensure that the coolant flow is adequate through the Oasis Heating System. The flow rate through each of the space heating loops should be at least 2.5 GPM. -
Page 45: Coolant Plumbing Installation Procedure
Figure 7-3: Three Approved Methods of Installing Heater Hose (Consult ITR for Alternative Methods and Products) for methods of attaching the heater hose. Once the two space heating loops have been set up with the... -
Page 46: Potable Water Plumbing Installation
Approved Methods Installing Heater Hose (consult ITR for alternative methods and products) Potable Water Plumbing Installation ® The Potable water connections are located on top of the Oasis S. The Cold water supply and Hot water outlet can be connected using ½”... -
Page 47: Engine Plumbing Installation
Section 7, Plumbing the System Figure 7-4 Potable Hot Water System Plumbing Engine Plumbing Installation The Engine Heat Supply/Return connections are located on top left ® (towards the back) of Oasis NE. These connection points are 1/2" hose. The connection can be made by placing PEX inserts into the 1/2"... -
Page 48: Procedure For Filling/Purging The Oasis
Section 7, Plumbing the System Figure 7-5 Engine Heat / Pre-heat System Plumbing Procedure For Filling/Purging The Oasis NE Heating System ® ® Do not operate the Oasis NE Heating System until the proper ® water/anti-freeze solution has been added to the Oasis Heating System and all trapped air has been bled. -
Page 49: Figure 7-6 Filling/ Purging Oasis
Section 7, Plumbing the System ® Remove the front cover of the Oasis NE, and using a self ® priming pump, and fill the Oasis NE Heating System through the filler port (1/2" hose barb connection) located at the bottom of the unit with a 50/50 mixture of propylene glycol and water. -
Page 50: Features Of Your Oasis ® Ne Heating System
Section Operating the Oasis ® Heating System This section describes the features, operation and maintenance ® your Oasis Heating System. READ THESE INSTRUCTIONS AND SAVE FOR REFERENCE. Features of Your Oasis NE Heating ® System ® The Oasis NE Heating System uses an 50,000 BTU (true output) diesel burner (12 VDC) controlled by a multi-functional electronic controller as the primary source of heating coolant (anti-freeze and water). - Page 51 ® Section 8, Operating the Oasis NE Heating System heat, an optional engine pre-heat pump and specific remote panel switch must be installed. Support for high flow domestic hot water demand. The system increases ground water temperature by 60F at a flow of 3.0 GPM (using only the diesel burner).
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Page 52: Operating Instructions For The Oasis ® Ne Heating System
® Section 8, Operating the Oasis NE Heating System Remote Operating Panel with ON/OFF switch for the diesel burner, AC elements, and engine pre-heat, if installed. Control Panel buttons for Power, Bypass, Reset, and indicator LED’s for operational and diagnostic information. Operating Instructions for the Oasis NE Heating System... -
Page 53: Turning The Power To The Oasis Ne Heating System On
® Section 8, Operating the Oasis NE Heating System Turning the Power to the Oasis ® Heating System ON ® The Oasis NE Heating System’s main Control Panel (Figure 8-2), located on the front of the heater, contains three push buttons: ON/OFF power, Bypass, and Reset. -
Page 54: Activating The Burner (Primary) And Ac Heat (Supplemental) From The Remote Operating Panel
® Section 8, Operating the Oasis NE Heating System ® Do not operate the Oasis NE Heating System until a suitable NOTICE water/anti-freeze solution is in the heater and all trapped air has been bled or removed. Use only a non-toxic propylene glycol based coolant with ! DANGER additives generally recognized as safe ”GRAS”... -
Page 55: Activating The Cabin Fan Heaters Through The Thermostats
® Section 8, Operating the Oasis NE Heating System temperature range, the AC element(s) will again be energized and will continue until either the AC switch on the remote panel is placed in the OFF position or cycling temperature is again achieved. -
Page 56: Potable Water Temperature Adjustment
® Section 8, Operating the Oasis NE Heating System Potable Water Temperature Adjustment ® A thermostatic mixing valve located inside the Oasis NE allows for adjusting the temperature of the potable hot water. The mixing valve is factory set to limit the maximum water temperature to 120ºF (49°C) with a total potable hot water demand of 3.0 GPM or less, and an incoming water temperature of 60ºF (15ºC) or higher. -
Page 57: Activating The Engine Heat & Pre-Heat
® Section 8, Operating the Oasis NE Heating System The parts inside the heater are HOT when in operation. Use WARNING gloves when adjusting the mixing valve. Turning the mixing valve knob clockwise will decrease the hot water outlet temperature and turning the knob counter-clockwise will increase the temperature. -
Page 58: Functions Of The Remote Operating Panel
® Section 8, Operating the Oasis NE Heating System Functions of the Remote Operating Panel Oasis Heating System’s Remote Operating Panel, Figure 8-4: Remote Operating Panel, contains one ON/OFF burner switch, one triple position AC element switch, ON/OFF engine heat switch to control the optional engine pre- heat pump, and four LED’s indicating Burner activation, AC element activation, heater fault, and zone fault. - Page 59 ® Section 8, Operating the Oasis NE Heating System AC Element Switch (Supplemental Heat Source) The triple position AC element switch controls the activation of a single 120 VAC immersion element only, dual 120 VAC immersion elements jointly, or both elements off. The AC heat LED will turn ON to indicate when the element(s) are operating.
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Page 60: Functions Of The Oasis Ne Control Panel
® Section 8, Operating the Oasis NE Heating System 8.10 Functions of the Oasis NE Control ® Panel ® The Oasis NE Control Panel (Figure 8-2) contains three push buttons: Power ON/OFF, Bypass, and Reset. In addition, it contains nine LED’s indicating Power, AC Heat, Compressor, Fuel Pump, Combustion Fan, Igniter, Flame Out, Voltage Fault and Low Water. -
Page 61: 8.11 Functions Of The Zone Control Board
® Section 8, Operating the Oasis NE Heating System Voltage Fault (Red) The voltage fault LED (Red) turns ON when a voltage fault has been detected. Low Water (Red) The Low Water LED (red) turns ON when a low coolant level ®... -
Page 62: Figure 8-5 Zone Control Board
® Section 8, Operating the Oasis NE Heating System Figure 8-5: Zone Control Board Power LED (Green) The power LED turns ON when the power to the Zone Control Board is ON. Zone 1, 2, 3, 4, 5 Thermostat LED’s (Green) ... -
Page 63: Potable Water And Space Heating Priority
® Section 8, Operating the Oasis NE Heating System 8.12 Potable Water and Space Heating Priority By default, the Zone Control Board is shipped with the heating priority set for potable hot water. This means that when there is a call for potable hot water, the space heating will shut down so all of the available heat can be directed to the potable hot water circuit. -
Page 64: 8.13 Maintenance
It is recommended that the dealer be contacted for this service or if not available, contact ITR for information on service resources. As a general guide, the regular maintenance items such as... -
Page 65: 8.14 Protecting The Heating System
® Section 8, Operating the Oasis NE Heating System be removed along with the burner box cover. The fuel block must then be removed from its mounting position. Finally, the burner and counter-flow tube must be taken out by removing the nuts holding the burner box in position. -
Page 66: 8.15 General Troubleshooting
® Section 8, Operating the Oasis NE Heating System 8.15 General Troubleshooting Ensure that your heating system has both sufficient ® battery voltage and ground, and coolant level. The Oasis NE is designed not to allow operation if these are incorrect (indicated by a lit Voltage LED or Low Water LED on the ®... - Page 67 ® Section 8, Operating the Oasis NE Heating System Burner Starts but Zone Faults Power LED on Zone Control Board glowing green? Component matched LED pairings all glowing green on the Zone Control Board? Fuse blown for one of the pumps or cabin fans on the Zone Control Board? ®...
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Page 68: Warranty Information
ITR by any other party arising out of or in connection with the sale, delivery, use, performance, or repair of the Product, or in connection with any services performed, even if ITR has been advised of the possibility of such damages, whether based upon warranty, contract, or negligence. -
Page 69: Not Covered Under Warranty
If any warrantable failures occur before the expiration of the warranty, the Owner must give notice of such failures to ITR or to the authorized ITR dealer from which the Product was originally purchased, and obtain written approval for the warranty repair. -
Page 70: Customer Service Calls
If you have a service problem, first check the Troubleshooting section of the Owner’s Manual to determine if your problem is addressed. Also ensure you are familiar with the design and installation setup. When calling ITR or the Dealer with a service problem, have the following information ready at hand: ... - Page 71 Warranty Information International Thermal Research After repair or replacement of the Products still under warranty, ITR will pay return shipping charges. All repairs done under warranty are subject to the terms and conditions of the flat-rate manual. Telephone / Email Service Service information given over the telephone, by fax or by email is given only in good faith as an accommodation to the customer.
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