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International Thermal Research Diesel and AC Heating System for Recreational Vehicles and Yachts Installation And Operating Manual

Oasis heating module diesel and ac heating system for recreational vehicles and yachts installation and operating manual
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OASIS™ Hea ing Module
t
Installation and
Operating Manual
Diesel and AC Heating System
for Recreational Vehicles and Yachts
CSA TIL R-17
ANSI/UL307A
CAN/CSA -C22.2 No.165

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  • Page 1 OASIS™ Hea ing Module Installation and Operating Manual Diesel and AC Heating System for Recreational Vehicles and Yachts CSA TIL R-17 ANSI/UL307A CAN/CSA -C22.2 No.165...
  • Page 2 Copyright © April 2007 International Thermal Research IN CANADA: 2431 Simpson Road Richmond, BC, Canada V6X 2R2 Tel: 1-800-755-1272 or 604-278-1272 Fax: 604-278-1274 Email: info@itrheat.com Website: 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...

  • Page 3: Table Of Contents

    International Thermal Research Table of Contents Section 1, Overview ... 1-1 Unpacking the Heating Module ... 1-2 Protect Your Warranty ... 1-2 Oasis™ Heating Module Features ... 1-3 Critical Factors... 1-5 Equipment, Tools and Skills ... 1-6 Testing and Inspection ... 1-7 Section 2, Mounting the Oasis™...
  • Page 4 Table of Contents Section 6, Wiring the Electrical System ... 6-1 Section 7, Plumbing the System ... 7-1 Section 8, Operating the Oasis™ Heating Module ... 8-1 Fan System Operation ... 5-2 Features ... 5-2 Multiple Zone Heating ... 5-3 Accessories and Components Needed ...
  • Page 5 International Thermal Research 8.11 Functions of the Distribution Module (Optional) Zone Control Panel ...8-10 8.12 Maintenance ...8-11 8.13 Protecting the Heating Module and Distribution Module (Optional) ...8-13 8.14 General Troubleshooting ...8-13 Section 9, Installing Distribution Module, DM-12 (optional) ... 9-1 Installing your Distribution Module (optional) ...
  • Page 6 Table of Contents List of Figures Figure 1-1 Figure 1-2 Figure 2-1 Figure 2-2 Figure 3-1 Figure 3-2 Figure 3-7 Figure 5-1 Figure 5-2 Figure 5-3 Figure 6-1 Figure 7-1 Figure 7-2 Figure 8-1 Figure 8-2 Figure 8-3 Figure 8-4 Figure 9-1 Figure 9-2 Figure 9-3...

  • Page 7: Section 1, Overview

    Section Overview Thank purchasing Oasis™ Heating Module recreational vehicles and yachts. NOTICE Oasis™ Heating Module is certified only installation into Recreational Vehicles, Manufactured Homes, and Mobile housing. This section covers critical information you need to know before beginning the installation including how to protect your Warranty, and tools and equipment needed.

  • Page 8: Unpacking The Heating Module

    When you receive the Oasis™ Heating Module: A properly installed Oasis™ Heating Module is essential for several reasons: • To ensure that you and/or your customers receive satisfactory results and enjoy a warm, comfortable environment. • To ensure a trouble-free installation, a successful inspection and testing process, and ease of future maintenance.

  • Page 9: Oasis™ Heating Module Features

    Section 1, Overview result in a voided warranty for the entire heating system. 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 • Fan assisted sealed combustion chamber is designed to use outside combustion air. • Simple, low amperage draw ignition. • Electronically-controlled system with: • • • • • Heating Module Remote Operating Panel with ON/OFF switch for the diesel burner, AC elements, and engine heat, if installed. •...

  • Page 11: Critical Factors

    Section 1, Overview Figure 1-2: Oasis™ Heating and Distribution Module THE INSTALLATION SHALL BE IN ACCORDANCE WITH THE REGULATIONS OF AUTHORITIES HAVING JURISDICTION The key factors to keep in mind when planning and carrying out the Pay attention to the installation are: notices of “Danger”...

  • Page 12: Equipment, Tools And Skills

    Section 1 – Overview, sub-Section 1.2, Protect Your Warranty. You will need the following equipment and tools to install the heating system (not supplied). equipment and accessories: • Standard tools normally available in a well-equipped shop.

  • Page 13: Testing And Inspection

    Section 1, Overview • After all components have been properly installed according to standard recommendations of this Installation and Operating Manual, the Oasis™ Heating Module should be test-operated for inspection purposes. For your convenience, you can use the pullout Inspection Check Sheet in this Manual.
  • Page 14 Section 1, Overview The Oasis™ Heating Module...
  • Page 15 Mounting – Oasis™ Heating Plan the location of the Oasis™ Heating Module and all its major components in advance to ensure the chosen locations are compatible with installation requirements and within the technical specifications. Consider the following factors to help you decide exactly where best to mount the Oasis™...

  • Page 16: Section 2, Mounting The Oasis™ Heating Module

    Make sure you are familiar with Section 1 – Overview of this ! WARNING Manual. If the system is not installed according to specifications and with the correct equipment, your Oasis™ Heating Module may not operate properly, safety may be compromised, and your Warranty may be voided.

  • Page 17: Figure 2-1 Module Dimensions

    Section 2, Mounting the Oasis™ Heating Module • • • • Figure 2-1: Module Dimensions Oasis™ Heating Module must not be installed or operated in any ! DANGER compartment with flammable gases. If the Oasis™ Heating Module is going to be mounted in the engine ! WARNING compartment, check for adequate ventilation.

  • Page 18: What Not To Do

    parts that may cause injury through accidental contact should be protected. Isolate the unit in a closed compartment so that no air from the ! DANGER heater will infiltrate the living areas. • It is recommended that a catchpan be placed under the Oasis™ Heating Module for containing any unexpected leakage.

  • Page 19: Figure 2-2 Module Mounting Brackets

    Section 2, Mounting the Oasis™ Heating Module Figure 2-2: Module Mounting Brackets International Thermal Research...
  • Page 20 Section 2, Mounting the Oasis™ Heating Module The Oasis™ Heating Module...

  • Page 21: Section 3, Installing The Exhaust System

    Installing the Exhaust System For efficient and safe operation of the Oasis™ Heating Module follow all recommendations for properly installing the exhaust. 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: Never place any exhaust parts close to combustible material or...

  • Page 22: Recommendation For Installation

    • • In a yacht installation, the following is recommended for the exhaust outlet location: • • • Recommendation for Installation The following applies to both a coach and yacht: • • In a coach, the typical mounting location for the exhaust outlet is under the floor of the Oasis™...
  • Page 23 Section 3, Installing the Exhaust System The exhaust and outlet are HOT and the surrounding areas ! DANGER must be thermally shielded and protected from the hot surfaces and heat build-up by insulation. Nothing can come into inadvertent contact with any part of the exhaust system. International Thermal Research •...
  • Page 24 What NOT to Do D o n ’ t m o u n t t h e e x h a u s t m o o n ’ t e x h a m o u n m o u band clamps are recommended for joining flex and solid tubing as they apply firm, even pressure.
  • Page 25 Section 3, Installing the Exhaust System International Thermal Research Connect the flexible air-intake tubing (2” I.D.) to the air- intake fitting on top of the heater. Use a #32 gear clamp to attach the tubing to this fitting. The other end of the air-intake hose can be installed in 2 configurations: Installation air-intake...

  • Page 26: Figure 3-1 Installing The Exhaust System

    Section 3, Installing the Exhaust System Figure 3-1: Installing the Exhaust System (Bottom Exhaust) Figure 3-2: The Exhaust Hole Location & Mounting Template The Oasis™ Heating Module...
  • Page 27 Section 3, Installing the Exhaust System Figure 3-3: The Exhaust Goose Neck configuration International Thermal Research...
  • Page 28 Section 3, Installing the Exhaust System The Oasis™ Heating Module...

  • Page 29: Recommendations For Installation

    Installing the Fuel System For efficient and safe operation of the Oasis™ Heating Module, follow all recommendations for properly installing the fuel system. Any deviations from these must be approved in advance by ITR. Use only diesel fuel, furnace oil, or stove oil in the Oasis™ Heating ! DANGER Module.

  • Page 30: What Not To Do

    recommended size for the fuel line is ¼” I.D. The fuel return line should return to the fuel supply tank. 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 31: Procedure

    Section 4, Installing the Fuel System Ensure that fuel lines are always protected from contamination by ! CAUTION foreign material. prevent contamination. After installing, you may also wish to flush the fuel line to rid of it air and any foreign material. To complete the fuel system installation: International Thermal Research When installing or servicing, seal off ends to...
  • Page 32 Section 4, Installing the Fuel System The Oasis™ Heating Module...
  • Page 33 Section Installing Fan Heaters – with “Distribution Module” Only Before You Begin ITR makes a variety of fan heaters for individual cabins or areas. There are Cabin heaters and Spacesaver heaters (where space is limited). These heaters draw as little as 0.9 amps and deliver 140 cfm.

  • Page 34: Section 5, Installing Fan Heaters

    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. There must be an input and output vent for each fan unit.

  • Page 35: Multiple Zone Heating

    Section 5, Installing Fan Heaters International Thermal Research • 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 The Oasis™ Heating Module can supply heat up to five interior zones using the Distribution Module (Optional).

  • Page 36: What Not To Do

    Carefully choose the mounting locations of your fans: • • suggest optimal fan locations if you provide a floor • plan of your coach or yacht. • ITR’s Spacesaver fan (pictured at left) has two stainless steel mounting brackets welded to the side of the case. designed to be mounted horizontally on a flat surface.

  • Page 37: Procedure

    Section 5, Installing Fan Heaters International Thermal Research The thermostat should not be mounted on walls outside of the zone because that could cause false temperature readings. Mount on interior walls and bulkheads, away from windows, heater vents and cabin fan heaters. Procedure After choosing the appropriate mounting location and configuration:...

  • Page 38: Figure 5-2 Mounting A Spacesaver Fan

    Section 5, Installing Fan Heaters Figure 5-2: Mounting a Spacesaver Fan Figure 5-3: Installing a Relay for Additional Fan Amperage The Oasis™ Heating Module...

  • Page 39: Section 6, Wiring The Electrical System

    Wiring the Electrical System ! WARNING ! WARNING International Thermal Research Before You Begin The Oasis™ Heating Module and its electrical Control Board are pre- wired and have been thoroughly tested together as a unit. To review the wiring system for the Oasis™ Heating Module, refer to the wiring diagram at the end of this Section 6, Figure 6-1: System Wiring.

  • Page 40: 120 Vac

    • • • • Do not operate the electric immersion elements until water is added NOTICE to the Oasis™ Heating Module and Distribution Module, and all trapped air has been removed. • • 120 VAC The Oasis™ Heating Module is equipped with two 1500 watt, 120 VAC immersion elements (other voltages and frequencies are available).
  • Page 41 •...
  • Page 42 Section 6, Wiring the Electrical System What NOT to Do Never shut off the Oasis™ Heating Module power via an inline NOTICE battery or master switch while the system is running. Never disconnect the battery when the Oasis™ Heating Module is running, and never disconnect the battery while the inverter is charging.

  • Page 43: (Optional)

    For efficient and safe operation of the Oasis™ Heating Module, follow all recommendations for properly installing the plumbing system. Any deviations from these must be approved in advance by ITR. The Oasis™ Heating Module when attached to the Distribution ! DANGER Module (optional) must use the following: Use only a non-toxic, propylene glycol based coolant with additives generally recognized as safe ”GRAS”...
  • Page 44 ! DANGER water/anti-freeze solution has been added to the Oasis™ Heating Module and the heating system and all trapped air has been bled. An inadequate mixture may cause system circulation problems and potential Oasis™ Heating Module damage and/or personal injury.

  • Page 45: Figure 7-1 Heating Module

    Section 7, Plumbing the System Figure 7-1 Heating Module All fittings, hose and/or tubing involving the domestic water NOTICE component of the Distribution Module, must be approved for use with domestic water and rated for the domestic water system pressure •...

  • Page 46: What Not To Do

    • Use heavy-duty heater hose or PEX tubing. insulation coverings may be used over the hose fittings to reduce heat loss. Secure all hose connections with spring clamps. • Air vents for the fluid circulation system are not supplied, but may be optionally installed to help bleed air from the system.

  • Page 47: Heater Hose (Consult Itr For Alternative Methods And Products)

    Do not operate the Oasis™ Heating Module until the proper water/anti-freeze solution has been added to the Oasis™ Heating Module and the heating system and all trapped air has been bled. An inadequate mixture may cause system circulation problems and potential Oasis™...
  • Page 48 Section 7, Plumbing the System The Oasis™ Heating Module...

  • Page 49: Section 8, Operating The Oasis™ Heating Module

    Operating the Oasis™ Heating International Thermal Research This section describes the features, operation and maintenance your Oasis™ INSTRUCTIONS AND SAVE FOR REFERENCE. Features of Your Oasis™ Heating Module The Oasis™ Heating Module uses a diesel burner (12 VDC) controlled by a multi-functional electronic controller as the primary source of heating coolant fluid (anti-freeze and water).

  • Page 50: Your Heating Module Model

    • • • • • • • • Available with the Optional Distribution Module: • • As the user, you must be fully aware of the controls and NOTICE operating features particular to your model of The Oasis™ Heating Module. This is essential for the proper functioning and life of your Oasis™...

  • Page 51: Operating Instructions For The Oasis™ Heating Module

    Section 8, Operating the Heating Module NOTICE International Thermal Research number identifies the model type through the first series of letters and numbers. The two types of Oasis™ Heating Modules are: CH50 – Oasis™ Heating Module 50 CH35 (“CSA Certification Pending”) – Oasis™ Heating Module 35 Operating Instructions for the Oasis™...

  • Page 52: Turning The Power To The Oasis™ Heating Module On

    • The Oasis™ Heating Module’s main Control Panel, Figure 8-2: Heating Module Main Control Panel, located on the front of the module contains three push buttons: ON/OFF power, Bypass, and Reset. The power switch must be pushed ON (power LED will turn ON) to turn the DC electrical power to the main control board and module ON and is required to be left ON during any period where heat is requested.

  • Page 53: Activating The Burner (Primary)

    Section 8, Operating the Heating Module International Thermal Research Activating the Burner (Primary) and Heat Remote Operating Panel Activating the Burner (Primary Heat Source) • The burner switch on the Remote Operating Panel controls the ON/OFF of the diesel burner (primary heat source). When the burner switch is turned ON, the diesel portion of the Oasis™...

  • Page 54: Activating The Cabin Fan Heaters Through The Thermostats

    Activating the Burner and AC immersion Element(s) Jointly • Turn the burner switch ON and place the AC power switch on the Remote Operating Panel to either the one element or two element position. The Burner and AC Heat (green) LED’s will turn ON indicating the diesel burner and AC element(s) have been selected.

  • Page 55: Functions Of The Remote Operating Panel

    Section 8, Operating the Heating Module International Thermal Research • Turn the engine preheat switch on the Remote Operating Panel to the ON position with the burner or AC switch on. The engine preheat pump and coolant pump will be activated once the Oasis™...
  • Page 56 Burner Switch (Primary Heat Source) • AC Element Switch (Secondary Heat Source) (CH50 DM8 used in Tandem) • Engine Pre-Heat Switch (CH Models with this Option Only) Preheating the Engine • Burner LED (Green) • AC Heat LED (Green) • Module Fault LED (Red) •...

  • Page 57: Functions Of The Heating Module Control Panel

    Section 8, Operating the Heating Module International Thermal Research • When ON, indicates the space heating zone(s) has faulted. The specific fault can be identified by examining the Distribution Module Zone Control Panel (optional) located beside the Oasis™ Heating Module. There are indicator LED’s on the panel that indicate the problem.

  • Page 58: Functions Of The Distribution Module (Optional) Zone Control Panel

    Compressor, Fuel Pump, Combustion Fan, Igniter (Green) • Flame Out (Red) • Voltage Fault (Red) • Low Water (Red) • 8.11 Functions of the Distribution Module • • 8-10 Section 8, Operating the Heating Module The compressor, fuel pump, combustion fan, and igniter LED’s (Green) turn ON when the component is ON, and will flash if the component is electrically open or shorted.

  • Page 59: Figure 8-4 Zone Control Panel

    Section 8, Operating the Heating Module Figure 8-4: Zone Control Panel Power LED (Green) • The power LED turns ON when the power to the Distribution Module Zone Control Board is ON.

  • Page 60: 8.12 Maintenance

    8.12 Maintenance Customer Monthly Maintenance: Check the following and correct as required: Annual Service Requirements: Perform the following: 8-12 Section 8, Operating the Heating Module • Coolant hoses and fittings for leaks and integrity. • Check coolant level in the overflow bottle (3/4 full when hot).

  • Page 61: Protecting The Heating Module And Distribution Module (Optional)

    Section 8, Operating the Heating Module 8.13 Protecting the Heating Module and Protect the Oasis™ Heating Module and Distribution Module NOTICE (Optional) from temperature extremes and any dusty, dirty, corrosive environment. Protect the module(s) and the system from cold temperatures ! DANGER and corrosion by using a proper mixture of anti-freeze and water.
  • Page 62 AC immersion elements do not activate Burner Starts but Flame Faults Burner Starts but Zone Faults 8-14 Section 8, Operating the Heating Module • Oasis™ Heating Module connected to 12 VDC power? • Power button on Oasis™ Heating Module Control Panel pushed ON? Power LED lit on Oasis™...

  • Page 63: Installing Your Distribution Module (Optional)

    Installing the Distribution NOTICE International Thermal Research Module, DM12 Thank you for purchasing the Distribution Module, DM12. This section describes its installation. 9.1 Installing your Distribution Module Equipment, Tools and Skills As the Installer, you must be qualified and authorized to do the installation which requires mechanical and electrical knowledge.

  • Page 64: Selecting The Distribution Module Zone Box Location

    • 9.3 Selecting • • Section 9, Installing the Distribution Module Module must be mounted using four, 1/4” through bolts using 1” diameter fender washers, lock washers and nuts. The module must be mounted in the position as shown against a wall or on the floor.

  • Page 65: 9.4 Plumbing Installation

    Section 9, Installing the Distribution Module NOTICE International Thermal Research • The Distribution Module is connected to the Distribution Module Zone Control Board through the electrical connections located at the bottom of the Zone Control Board box. distance apart is dictated by the length of the 9 pin connector cord used.

  • Page 66: Figure 9-4 Domestic Hot Water System Plumbing

    • All fittings, hose, tube and fitting sealant involving the domestic WARNING water must be food safe and approved for use with domestic water and rated for the domestic water system pressure. • Section 9, Installing the Distribution Module The Domestic water connections are located on top of the module.

  • Page 67: Figure 9-5 Engine Heat / Pre-Heat System Plumbing

    Section 9, Installing the Distribution Module International Thermal Research supply. The module contains a red and black wire to connect this pump. The pre-heat switch on the remote control panel will activate this pump. See Figure 9-5: Engine heat/pre-heat system plumbing. Figure 9-5 Engine Heat / Pre-heat System Plumbing.

  • Page 68: Figure 9-6 Connecting To The Oasis Heating Module

    Section 9, Installing the Distribution Module Figure 9-6: Connecting to the OASIS Heating Module • The Distribution module has the capability to supply heat for two separate heating loops labeled “Heating loop 1 supply” and “Heating loop 2 supply”. Each loop can contain several fans connected in series.

  • Page 69: Figure 9-7 Connecting Two Heating Loops

    All plumbing lines must be run and secured so as to prevent damage, chafing and kinking. 9.5 Filling/Purging the heating system The Distribution module contains two valves with ½”NPT connections to be used for filling the heating loop. To initially fill up and bleed the air out of the system, do the following: 1.

  • Page 70: Figure 9-8 Initial Fill Up Oasis System

    Section 9, Installing the Distribution Module inlet of a diaphragm pump and place the hose in a container filled with a 50/50 mixture of propylene glycol and water (see Figure 9-8). 2. Connect a hose to the “fill outlet valve” on the distribution module and place the other end of the hose in the same container.

  • Page 71: 9.6 Electrical Connection

    7. Turn off the pump activation switch. 8. The Oasis heating system is ready to be operated. 9.6 Electrical Connection All electrical connections and wiring must comply with normally-...

  • Page 72: Distribution Module Zone Control Board

    9.7 Distribution Module Zone Control Multi-Pin Connectors The Zone Control Board has four multi-pin connectors, see Figure 9-3: Plumbing for Five Zones Using the Distribution Module, that are to be connected through connector cords (supplied) to the matching multi-pin connectors as follows: •...
  • Page 73 • •...
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  • Page 76 Section 9, Installing the Distribution Module 9-14 The Oasis™ Heating Module...

  • Page 77: Warranty Information

    Product. Use of any unapproved materials or equipment in the Product’s installation or operation will result in a voided warranty for the entire heating system. • You must install the Product in compliance with the specifications, standards, and instructions in the Installation Manual.

  • Page 78: Limited Warranty

    Warranty Information 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 or otherwise in law or from dealing or trade usage.

  • Page 79: Customer Service Calls

    International Thermal Research • 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 maintenance.
  • Page 80 Warranty Information Depending on your location, an authorized service person may be able to visit your coach or yacht to help troubleshoot 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.

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