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RenewAire HM-050 Supplemental Manual For Options

Integral indirect gas-fired heat module for dn series
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Integral Indirect Gas-Fired Heat Module
Supplemental Manual for Options
DN-Series
Indirect Gas Heat Module Shown

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Summary of Contents for RenewAire HM-050

  • Page 1 Integral Indirect Gas-Fired Heat Module Supplemental Manual for Options DN-Series Indirect Gas Heat Module Shown...
  • Page 2 OPTION Integral Indirect Gas-Fired Heat Module AVERTISSEMENT WARNING RISQUE D’INCENDIE OU D’EXPLOSION FIRE OR EXPLOSION HAZARD Le non repsect des mises en garde pourrait entraîner des Failure to follow safety warnings exactly could result in seri- blessures graves, la mort ou des pertes matérielles. ous injury, death or property damage.
  • Page 3 Integral Indirect Gas-Fired Heat Module OPTION CAUTION ATTENTION RISQUE DE CHOC ELECTRIQUE OU DE DOMMAGE RISK OF ELECTRIC SHOCK OR EQUIPMENT DAMAGE. D'APPAREIL Whenever electrical wiring is connected, disconnected Chaque fois que le câblage électrique est connecté, décon- or changed, the power supply to the module and module necté...
  • Page 4 The completed document is to be turned Locate the RenewAire unit label, found on the outside of the unit. over to the owner after start-up. NOTE: This information is for purposes of identifying the unit-specific option data from the option code.
  • Page 5 TABLE OF CONTENTS Integral Indirect Gas-Fired Heat Module OPTION 1.0 OVERVIEW 5.0 INSTALLATION 1.1 DESCRIPTION ............7 5.1 MODULE INSPECTION ON ARRIVAL ......30 1.2 GAS SUPPLY ............7 5.2 PREPARING FOR INSTALLATION ......30 1.3 ELECTRICAL SUPPLY ..........7 5.3 INSTALLATION CODES ..........30 1.4 INPUT CAPACITY IN MBH [W] ........7 5.4 PLACEMENT OF MODULE ........30 1.5 GAS MODULE MODULATION (TURNDOWN) ....8 5.5 CLEARANCES ............30...
  • Page 6 OPTION Integral Indirect Gas-Fired Heat Module TABLE OF ILLUSTRATIONS Figure 1.7.0 Ignition Controller (Typical) ....................8 Figure 1.7.1 Maxitrol SC-30 Signal Conditioner ..................8 Figure 1.9.0 Module Heat Rise Calculation................... 9 Figure 2.1.0 Indoor Vertical Venting for Flue Exhaust ................. 11 Figure 2.1.1 Indoor Horizontal Venting for Flue Exhaust ..............
  • Page 7 1.1 DESCRIPTION an integral indirect The gas heater found in the RenewAIre DN unit is an indirect gas fired heat module, classified gas-fired heat mod- as either Category I or Category III. Flue gas venting is either horizontal (through the wall) ule that will be referred or vertical (through the roof).
  • Page 8 Modulation of the gas supply typically involves a different gas valve or valves, some programming differences to the onboard controller and a different gas manifold. All heat modules are modulated. RenewAire gas heat modules are available with the following turndown options: 5:1 Modulation (available for gas heat modules 50–350 MBH)
  • Page 9 OVERVIEW Integral Indirect Gas-Fired Heat Module OPTION 1.8 SIGNAL CONDITIONERS Signal conditioners are used in all heat modules to control the outputs of the gas valves. In general, they modulate a modulating gas valve by providing either a 0–10 VDC or a 2–10 VDC signal to the valve.
  • Page 10 SYSTEM REQUIREMENTS OPTION Integral Indirect Gas-Fired Heat Module 2.0 SYSTEM REQUIREMENTS 2.1 VENTING 2.1.1 Equivalent Length Vent pipe lengths are given as “equivalent lengths.” When vent pipes are installed, they often require that an elbow(s) be installed as part of the vent pipe. Elbows restrict free flow of gases through the vent pipe.
  • Page 11 Tee Fitting with tions is supplied by others Drip Leg and and field-installed. Cleanout Cap (Both Pipes) 4510 Helgesen Dr. RenewAire LLC UNLESS OTHERWISE SPECIFIED, Madison, WI 53718 USA DIMENSIONS ARE IN INCHES. TEL: (608) 221-4499 TOLERANCES: FAX: (608) 221-2824 FIGURE 2.1.0 INDOOR VERTICAL VENTING FOR FLUE EXHAUST...
  • Page 12 Above grade condensate drainage or expected snow depth NOTE: All 4510 Helgesen Dr. RenewAire LLC UNLESS OTHERWISE SPECIFIED, installations must FIGURE 2.1.1 INDOOR HORIZONTAL VENTING FOR FLUE EXHAUST Madison, WI 53718 USA DIMENSIONS ARE IN INCHES. TEL: (608) 221-4499...
  • Page 13 Drip Leg and Cleanout Cap tions is supplied by others (Both Pipes) and field-installed. 4510 Helgesen Dr. RenewAire LLC UNLESS OTHERWISE SPECIFIED, FIGURE 2.1.2 VERTICAL VENTING—SEPARATE COMBUSTION Madison, WI 53718 USA DIMENSIONS ARE IN INCHES. TEL: (608) 221-4499 TOLERANCES:...
  • Page 14 2.2 GAS SUPPLY Installation of piping must conform with local building codes and ordinances, or, in the absence 4510 Helgesen Dr. RenewAire LLC UNLESS OTHERWISE SPECIFIED, Madison, WI 53718 USA of local codes, with ANSI Z223.1, the National Fuel Gas Code. In Canada, installation must be in DIMENSIONS ARE IN INCHES.
  • Page 15 13.5 InWC Max. MAX. MINIMUM INLET PRESSURE Minimum Inlet Pressure FIGURE 2.2.0 EXAMPLE OF MULTIPLE DOAS SUPPLY GAS PIPING 201 Raemisch Rd. RenewAire LLC UNLESS OTHERWISE SPECIFIED, Waunakee, WI 53597 USA DIMENSIONS ARE IN INCHES. TEL: (608) 221-4499 TOLERANCES: FAX: (608) 221-2824...
  • Page 16 SYSTEM REQUIREMENTS OPTION Integral Indirect Gas-Fired Heat Module Electrical specifications are as shown in the charts below. FOR MODELS WITH MBH 050, 075, 100, 125, 150 MODULE FLA INPUT VOLTAGE 5:1 Modulating 115 VAC FOR MODELS WITH MBH 200, 250, 300, 350 MODULE FLA INPUT VOLTAGE...
  • Page 17 SYSTEM REQUIREMENTS Integral Indirect Gas-Fired Heat Module OPTION 2.3.2 Electrical Schematics NOTE: Module-specific wiring schematics are provided with each unit and can be found in the document package shipped with the unit. NOTE: If any of the original wire as supplied with the appliance must be replaced, it must be replaced with wiring material having a temperature rating of at least 105 ˚C.
  • Page 18 SYSTEM REQUIREMENTS OPTION Integral Indirect Gas-Fired Heat Module NOTE: Module-specific wiring schematics are provided with each unit and can be found in the document package shipped with the unit. NOTE: If any of the original wire as supplied with the appliance must be replaced, it must be replaced with wiring material having a temperature rating of at least 105 ˚C.
  • Page 19 SYSTEM REQUIREMENTS Integral Indirect Gas-Fired Heat Module OPTION NOTE: Module-specific wiring schematics are provided with each unit and can be found in the document package shipped with the unit. NOTE: If any of the original wire as supplied with the appliance must be replaced, it must be replaced with wiring material having a temperature rating of at least 105 ˚C.
  • Page 20 SYSTEM REQUIREMENTS OPTION Integral Indirect Gas-Fired Heat Module NOTE: Module-specific wiring schematics are provided with each unit and can be found in the document package shipped with the unit. NOTE: If any of the original wire as supplied with the appliance must be replaced, it must be replaced with wiring material having a temperature rating of at least 105 ˚C.
  • Page 21 PLACEMENT Integral Indirect Gas-Fired Heat Module OPTION 3.0 PLACEMENT RECOMMENDATIONS WARNING AVERTISSEMENT RISK OF FIRE OR EXPLOSION! RISQUE D’INCENDIE OU D’EXPLOSION Do not install heat module where it may be exposed to N'installez pas le module de chauffage à un endroit où il potentially explosive or flammable vapors! pourrait être exposé...
  • Page 22 FRONT VIEW modified to accommodate field conditions. FIGURE 3.2.0 OUTDOOR HORIZONTAL DUCTWORK CONFIGURATION 4510 Helgesen Dr. RenewAire LLC UNLESS OTHERWISE SPECIFIED, Madison, WI 53718 USA DIMENSIONS ARE IN INCHES. TEL: (608) 221-4499 FAX: (608) 221-2824 TOLERANCES:...
  • Page 23 TECHNICAL DATA Integral Indirect Gas-Fired Heat Module OPTION 4.0 COMPONENT TECHNICAL DATA 4.1 PERFORMANCE DATA NOTE: Pour convertir le débit d'air CFM en l/s, 1 NOTE: To convert Airflow CFM to l/s, 1 CFM = CFM = 0.47 l/s. 0.47 l/s. Pour convertir MBH en Watts, 1 MBH = 293 Watts To convert MBH to Watts, 1 MBH = 293 Watts Pour convertir ˚F Temperature Rise en Celsius,...
  • Page 24 TECHNICAL DATA OPTION Integral Indirect Gas-Fired Heat Module 4.2 MODULE SIZE SELECTION Module sizes are specified according to Input MBH. To select the correct module size, it is NOTE: For instruc- necessary to determine the required heat output in BTU/Hr and then apply the efficiency rating tions on conversion of the module to that output to determine the correct module size, measured in Input MBH.
  • Page 25 Output Temperature Rise Tubes Duct Opening Diameter Installed Min. Max. Min. Max. “D” Model No. Btu/h Btu/h inch ˚F ˚F inch HM-050 50,000 40,000 1,852 HM-075 75,000 60,000 2,778 HM-100 100,000 80,000 1,235 3,704 HM-125 125,000 100,000 1,543 4,630 HM-150...
  • Page 26 Gas Valve Draft Inducer Fan Modulating Gas Valve Condensate Drain Tube Gas Inlet FIGURE 4.6.0 EXAMPLE OF MODULATED GAS TRAIN 201 Ra RenewAire LLC UNLESS OTHERWISE SPECIFIED, Waunakee DIMENSIONS ARE IN INCHES. TEL: (60 TOLERANCES: FAX: (60 TOLL FREE: LINEAR 0.015...
  • Page 27 TECHNICAL DATA Integral Indirect Gas-Fired Heat Module OPTION 4.7 GAS VALVE ILLUSTRATIONS Photographs are typical of valves used. Actual valve models vary by installation. MANUAL SHUTOFF KNOB ELECTRICAL CONNECTION BLOCK ADJUSTMENT SCREW HONEYWELL 1-STAGE VALVE ADJUSTMENT SCREWS MANUAL ELECTRICAL SHUTOFF CONNECTION SWITCH BLOCK...
  • Page 28 TECHNICAL DATA OPTION Integral Indirect Gas-Fired Heat Module ELECTRICAL CONNECTIONS LOW FIRE ADJUSTING SCREW (UNDER PLASTIC CAP) MAXITROL M SERIES MODULATING VALVE ELECTRICAL CONNECTION BLOCK BUTTON 2 (LOW FIRE) BUTTON 1 (HIGH FIRE) SWITCHES MAXITROL EXA SERIES MODULATING VALVE FIGURE 4.7.2 MODULATING GAS VALVES (TYPICAL) 1.800.627.4499...
  • Page 29 TECHNICAL DATA Integral Indirect Gas-Fired Heat Module OPTION 4.8 DEFINITIONS FOR GAS HEAT MODULE Heater Type: Voltage Phase: HM—indirect gas-fired duct furnace from Single Phase only. 50 MBH up to 350 MBH Control Voltage: Input Capacity: 24 VAC (Standard)—secondary voltage MBH—BTU per hour (÷1000) rating for Control Type: furnace input capacity.
  • Page 30 Installation Code (CSA B149.1) 5.4 PLACEMENT OF MODULE The module is factory-installed in a DOAS manufactured by RenewAire. It is the installing contractor's responsibility to verify that installation of the DOAS with its gas heat module is installed safely, in accordance with all applicable codes.
  • Page 31 INSTALLATION Integral Indirect Gas-Fired Heat Module OPTION Two-pipe separated combustion systems: Vertical venting: The combustion air inlet must be a minimum of 18 inches above the roof deck and must exceed the expected snow depth. The exhaust gas outlet must be a minimum of 2.5 feet above the roof deck and 6 feet from the nearest wall or adjoining building.
  • Page 32 Gas Heat Module Condensate Drain Tube Combustion Air Intake Hood Gas Pipe Connection FIGURE 5.6.0 INSTALLATION EXAMPLE 4510 Helgesen Dr. RenewAire LLC UNLESS OTHERWISE SPECIFIED, Madison, WI 53718 USA DIMENSIONS ARE IN INCHES. TEL: (608) 221-4499 TOLERANCES: FAX: (608) 221-2824...
  • Page 33 INSTALLATION Integral Indirect Gas-Fired Heat Module OPTION IMPORTANT All gas piping must be installed in accordance with the latest edition of the National Fuel Gas Code, ANSI Z223.1 and any local codes that may apply. In Canada, the equipment shall be installed in accordance with the Installation Code for Gas Burning Appliances and Equipment, (CGAB 149) and Provincial Regulations for the class.
  • Page 34 STAINLESS STEEL TRAP LINE FIGURE 5.9.0 RECOMMENDED DRAIN TRAP CONSTRUCTION 6.0 OPERATION 6.1 GAS HEATER QUICK-START GUIDE 201 Raemisch Rd. RenewAire LLC UNLESS OTHERWISE SPECIFIED, Waunakee, WI 53597 USA DIMENSIONS ARE IN INCHES. TEL: (608) 221-4499 TOLERANCES: FAX: (608) 221-2824...
  • Page 35 OPERATION Integral Indirect Gas-Fired Heat Module OPTION WARNING NOTE: Quick-Start is used to test the gas ARC FLASH AND ELECTRIC SHOCK HAZARD supply and general Arc flash and electric shock hazard. Disconnect all electric power supplies, verify with a volt- operational readiness of meter that electric power is off and wear protective equipment per NFPA 70E before working the gas heat module.
  • Page 36 OPERATION OPTION Integral Indirect Gas-Fired Heat Module 6.2.2 Disable BMS Control For purposes of testing operation of the gas heater module, BMS control of the heater should be left turned OFF. On the controller, go to Home Screen > Main Menu > Settings and then press ENTER on the controller.
  • Page 37 OPERATION Integral Indirect Gas-Fired Heat Module OPTION 6.2.5 Verify That Heater Settings Will Call For Heat Go to the Unit Status > Heating screen. Unit Status SETPOINT HEATING (MUST BE GREATER THAN Current CURRENT TEMPERATURE) 78.60 F Temperature Setpoint 79.00 F Output ON COMMAND Command...
  • Page 38 OPERATION OPTION Integral Indirect Gas-Fired Heat Module 6.3.1 Enable the Unit Controller Go to Home Screen > Main Menu > Unit Enable. Switch Unit Enable to ON. Exit this menu item by pressing the ESCAPE button. When the Unit Status is changed to ON, the dampers will open, the fans will begin running and a call for heat will go from the controller to the gas heat module.
  • Page 39 OPERATION Integral Indirect Gas-Fired Heat Module OPTION 6.6 UNIT START-UP ADJUSTMENTS 6.6.1 Burner Flames Prior to completing the start-up, check the appearance of the main burner flame. See images below for characteristics of properly adjusted Natural Gas systems. The burner flame should be predominantly blue in color and well defined and centered at the tube entry.
  • Page 40 OPERATION OPTION Integral Indirect Gas-Fired Heat Module 6.6.2 Shutdown After Unit Start-Up NOTE: Information Restore any controller settings that were changed for testing purposes. outlining the normal Disable any call for heat signal from the Integrated Programmable Controller by going in the sequence of opera- Service Menu >...
  • Page 41 RenewAire suggests an initial Lockout Above setting of 50˚ F. If the OA air is at 50˚ F and the Return Air coming from the Occupied Space is at 72˚ F, the Supply Air recovers enough heat energy from the Return Air that it will reach about 67.6˚...
  • Page 42 OPERATION OPTION Integral Indirect Gas-Fired Heat Module Shows that the controller is supposed to maintain Unit Status HEATING the setpoint of 72˚ F. 70.5˚ F Shows that the controller senses that the current temperature is lower than the setpoint. Setpoint 72.0˚...
  • Page 43 MAINTENANCE Integral Indirect Gas-Fired Heat Module OPTION 6.6.4 Normal Operation Turn on the unit disconnect switch. This will provide power to the gas heat module and also boot-up the unit controller. Enable the heating function by going to the controller Service Menu > Unit Type and set Enable Heat to YES.
  • Page 44 Primary Side Fusing Secondary Side Fusing Control Panel Ignitor Spark Ignition Wire FIGURE 7.3.0 SERVICE PARTS - MODULATED CONTROL 201 Raemisch Rd. RenewAire LLC UNLESS OTHERWISE SPECIFIED, Waunakee, WI 53597 USA DIMENSIONS ARE IN INCHES. TEL: (608) 221-4499 FAX: (608) 221-2824 TOLERANCES:...
  • Page 45 TROUBLESHOOTING Integral Indirect Gas-Fired Heat Module OPTION 8.0 TROUBLESHOOTING In the event the gas heater fails to heat, check the following: Check the disconnect switch on the front of the unit and make sure it is turned ON. Check the fuses for the step-down transformer for the gas heat module. Check the Disable value on the Heating screen to make sure the unit is not being disabled by the Lockout Above setting (Main Menu >...
  • Page 46 TROUBLESHOOTING OPTION Integral Indirect Gas-Fired Heat Module 8.2 IGNITION CONTROLLER Problems with ignition can often be diagnosed by viewing the LED indicator on the Series 5 Ignition Controller that is used on all models. The controller monitors operation of the module and will shut down the module for a number of reasons and provide a flashing error code.
  • Page 47 PDF version can be downloaded from: http://www.renewaire.com/support/for-the-professional/documentation/warranty-information In addition to the standard RenewAire warranty, certain components in the heat module that are constructed of stainless steel (such as the heat exchanger tubes) have an extended prorated warranty.
  • Page 48 About RenewAire For over 30 years, RenewAire has been a pioneer in enhancing indoor air quality (IAQ) in commercial and residential buildings of every size.This is achieved while maximizing sustainability through our fifth-generation, static-plate, enthalpic-core Energy Recovery Ventilators (ERVs) that optimize energy efficiency, lower capital costs via load reduction and decrease operational expenses by minimizing equipment needs, resulting in significant energy savings.

This manual is also suitable for:

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