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FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. DO NOT try to light any appliance.
3. DO NOT use electrical switches.
4. DO NOT use any telephone in
your building.
5. Extinguish any open flame.
6. Leave the building.
7. Immediately call your local gas
supplier after leaving the building.
Follow the gas supplier's
instructions.
8. If you cannot reach your gas
supplier, call the Fire Department.
WARNING
Fire Hazard
Keep all flammable objects, liquids and
vapors the minimum required clear-
ances to combustibles away from
heater.
Some objects will catch fire or explode
when placed close to heater.
Failure to follow these instructions can
result in death, injury or property
damage.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can result in death, injury or
property damage. Read the Installation, Operation
and Service Manual thoroughly before installing or
servicing this equipment.
Installation must be done by a contractor qualified
in the installation and service of gas-fired heating
equipment or your gas supplier.
© 2012 Roberts-Gordon LLC
Gas-Fired, Low Intensity
Installation, Operation &
Installer
Please take the time to read and understand
these instructions prior to any installation.
Installer must give a copy of this manual to the owner.
Owner
Keep this manual in a safe place in order to provide
your serviceman with necessary information.
VAL-CO.
210 E. Main Street
P.O. Box 117
Coldwater, OH 45828 USA
Telephone: 800-998-2526
Fax: +1.419-678-2200
www.valcompanies.com
Unitary Heater
Service Manual
VM-80
VM-115
VM-150
VM-200
P/N VM34100NA Rev H 02/12
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Table of Contents
Troubleshooting
Summary of Contents for HeatRite VM-80
- Page 1 Installation, Operation & Follow the gas supplier’s instructions. Service Manual 8. If you cannot reach your gas supplier, call the Fire Department. WARNING VM-80 VM-115 VM-150 VM-200 Fire Hazard Keep all flammable objects, liquids and vapors the minimum required clear- ances to combustibles away from heater.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1: Heater Safety............1 SECTION 9: Gas Piping............37 1.1 Manpower Requirements ..........1 SECTION 10: Wiring.............. 39 1.2 Safety Labels and Their Placement ......1 10.1 Heater Wiring for use with Brooder Contoller... 39 1.3 California Proposition 65 ..........1 10.2 Standard Heater Configuration ........ - Page 5 TABLE OF FIGURES Figure 1: Top and Bottom Panel Label Placement ....2 Figure 2: Side and Back Panel Label Placement ...... 3 Figure 3: Standard Reflector ............. 6 Figure 4: One Side Reflector............. 7 Figure 5: Two Side Reflectors ........... 7 Figure 6: U-Tube, Standard Reflector........
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Page 7: Section 1: Heater Safety
SECTION 1: H EATER AFETY SECTION 1: HEATER SAFETY Please contact Val-Co or your VAL-CO independent distributor to obtain replacement signs or labels. See Your Safety is Important to Us! Page 2, Figure 1 through Page 3, Figure 2. This symbol is used throughout the manual to notify you of possi- ble fire, electrical or burn hazards. -
Page 8: Figure 1: Top And Bottom Panel Label Placement
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 1: Top and Bottom Panel Label Placement Logo Label Rating Plate Label Bottom Panel Description Part Number Logo Label 91013205 Rating Plate Label 91010405 Gas Connection Label 91018122 Proposition 65 Label 91070015 Proposition 65 Label Top Panel Gas Connection Label... -
Page 9: Figure 2: Side And Back Panel Label Placement
SECTION 1: H EATER AFETY FIGURE 2: Side and Back Panel Label Placement Control Side Panel Clearances to Combustibles Label Control Side Panel (Inside) Wiring Label N.O. Carbon Monoxide Hazard Label Inside Bottom Panel Vent Length Label Low Voltage Connection Label Back Panel Description... -
Page 10: Section 2: Installer Responsibility
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 2: INSTALLER RESPONSIBILITY Service Manual. See Page 6, Figure 3 through Page 8, Figure 9. Write the proper clearance dimensions in The installer is responsible for the following: permanent ink according to your model number and •... -
Page 11: National Standards And Applicable Codes
SECTION 2: I NSTALLER ESPONSIBILITY installer. It is essential that the contractor, the sub- contractor, or the owner identifies the presence of combustible materials, corrosive chemicals or halogenated hydrocarbons* anywhere in the premises. * Halogenated Hydrocarbons are a family of chemical compounds characterized by the presence of halogen elements (fluorine, chlorine, bromine, etc.). -
Page 12: Section 3: Clearances To Combustibles
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect. FIGURE 3: STANDARD REFLECTOR (inches) (centimeters) Model VM-80 VM-115 VM-150 VM-200 6 of 71... -
Page 13: Figure 4: One Side Reflector
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect. FIGURE 4: ONE SIDE REFLECTOR (inches) (centimeters) Model VM-80 VM-115 VM-150 VM-200 FIGURE 5: TWO SIDE REFLECTORS (inches) -
Page 14: Figure 7: 2-Foot Deco Grille And Protective Grille
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect. FIGURE 7: 2-FOOT DECO GRILLE AND PROTECTIVE GRILLE (inches) (centimeters) Model VM-80 VM-115 VM-150 VM-200 FIGURE 8: LOWER CLEARANCE SHIELD* (inches) -
Page 15: Section 4: National Standards And Applicable Codes
SECTION 4: N ATIONAL TANDARDS AND PPLICABLE ODES SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES 4.1 Gas Codes 4.3 Public Garages The type of gas appearing on the nameplate Installation in garages must be in accordance must be the type of gas used. Installation must with the following codes: comply with national and local codes and United States: Refer to Standard for Parking... -
Page 16: Section 5: Major Components
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 5: MAJOR COMPONENTS FIGURE 10: Major Component Descriptions Burner with Tube Gasket Reflector Must be installed with the (Aluminum or flame observation Stainless window facing down. Steel) Alternate overlap as shown on overview and on Page 15, Figure 13. -
Page 17: Standard Parts List
SECTION 5: M AJOR OMPONENTS 5.1 Standard Parts List Table 1: Contents of Burner Carton Part No. Description VM-80 VM-115 VM-150 VM-200 VM34XXXXX Burner Assembly (Rate and Fuel Varies) 02568200 Gasket (Burner to Burner Tube) VM34100NA Installation, Operation and Service Manual... -
Page 18: Section 6: Heater Installation
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 6: HEATER INSTALLATION Expansion and contraction of the tube dictates that the minimum suspension lengths in the table on WARNING Page 13, Figure 11 be maintained. Severe Injury Hazard Secure burner to burner tube with bolts and lockwashers. -
Page 19: Figure 11: Critical Hanger Placement
SECTION 6: H EATER NSTALLATION FIGURE 11: Critical Hanger Placement Typical Suspension Details Beam Clamp Concrete Beam Wood Beam Anchor Locknut Screw Hook 3/8" Chain Size 3/16" Washers Rod 3/8" Minimum 24" min.* (61 cm) "X"* S-hooks Turnbuckle * Allows for thermal expansion of system Not Included S-hooks Side View... -
Page 20: Figure 12: Linear Heater Assembly Overview
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 12: Linear Heater Assembly Overview 14 of 71... -
Page 21: Figure 13: Linear Heater Layout Overview
SECTION 6: H EATER NSTALLATION FIGURE 13: Linear Heater Layout Overview LEGEND Burner Reflector 20' (6 m) Tube Length Tube Tube/Reflector Hanger, Wide Pattern Coupling Assembly Vent Adapter 30' (9 m) Tube Length a = 14" (36 cm) reflector width (not shown) b = 2"... -
Page 22: Burner Tube Installation
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL Step 6.1 Burner Tube Installation NOTE: Tubing requires a downward slope of 1/2" (13 mm) Offset mounting per 20' (6 m) away hole must be from burner. to the top. S-Hook Hanger, Wide Pattern Burner Tube Weld seam must be to the... -
Page 23: Coupling And Tube Assembly
SECTION 6: H EATER NSTALLATION Step 6.3 Coupling and Tube Assembly Close coupling Start Slide bar/Coupling Lock. with tab. Slide Bar/Coupling Lock Wide End Coupling Open 3" (8 cm) to 4" (10 cm) Closed Insert tubes into coupling. Tighten coupling to join tubes. Slide Bar/Coupling Lock Coupling Orient coupling so that... -
Page 24: Turbulator Installation
ERIES NSTALLATION PERATION AND ERVICE ANUAL Step 6.3.2 Coupling and Tube Assembly (Continued) Tube Length Model Minimum VM-80 20’ (6 m) VM-115 30’ (9 m) VM-150 40’ (12 m) VM-200 50’ (15 m) 7' 6" ± 1' (229 cm ± 25 cm) 10' ±... -
Page 25: Reflector Installation
SECTION 6: H EATER NSTALLATION 6.5 Reflector Installation WARNING Fire Hazard Support reflector with reflector hanger and support strap. Reflector must not touch tube. Failure to follow these instructions can result in death, injury or property damage. All tube surfaces must be covered NOTE: by a reflector, except for a U-Tube. - Page 26 VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL Step 6.5.1 Reflector, U-Clip and Reflector Support Installation The pictorial drawings of the heater construction in reflector supports and U-clips depends on the Section 6 are schematic only and provide a general individual installation. Use either pop rivets or sheet guideline of where hangers, reflector supports and metal screws instead of u-clips when installing end U-clips are to be installed.
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Page 27: Burner Installation
SECTION 6: H EATER NSTALLATION Step 6.6 Burner Installation Burner Gasket S-hook Burner Tube Burner must be installed with the flame observation Lock window facing down. Washer Description Part Number Bolt 94273914 Burner VM34XXXXX Lock Washer 96411600 Gasket 02568200 21 of 71... -
Page 28: Section 7: Optional Heater Accessories
When using a U-Tube configuration, the following additional rules must be adhered to: • A minimum of 10' (3 m) on VM-80 and a minimum of 15' (4.5 m) on VM-115/150/200 is required between the burner and the U-Tube. -
Page 29: Figure 14: U-Tube Heater Assembly Overview
SECTION 7: O PTIONAL EATER CCESSORIES FIGURE 14: U-Tube Heater Assembly Overview U-Tube Support Bracket Reflector Support, Wide Pattern Burner (Turbulator Reflector With Select Models) Tube Clamp Tube Burner Package Tube Couplings U-Clips Reflector End Caps U-Tube, Standard Tight U-Bolt 4"... -
Page 30: Figure 15: U-Tube Heater Layout Overview
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 15: U-Tube Heater Layout Overview LEGEND Burner Reflector 20' (6 m) Tube Length* Tube 10' (3 m) Tube 5' (1.5 m)** Tube/Reflector Hanger, Wide Pattern 30' (9 m) Tube Length** Coupling Assembly U-tube a = 14"... -
Page 31: Elbow Package Configuration
Minimum Distance Required Description Part Number Between Burner and Elbow Elbow Package 02718702 Minimum 90° Elbow 01335801 Model Distance 90° Elbow VM-80 10' (3m) Coupling 01312700 VM-115 Reflector End Cap 02750800 VM-150 15' (4.5m) Reflector Joint Piece 02750900 U-clip Package... -
Page 32: Figure 16: Reflector Joint Detail
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL Step 7.2.4 Reflector Joint Installation Step 7.2.5 Reflector Joint Detail FIGURE 16: Reflector Joint Detail Reflector Reflector Joint 26 of 71... -
Page 33: Reflector Side Extension
SECTION 7: O PTIONAL EATER CCESSORIES 7.3 Reflector Side Extension Step 7.3.1 Bracket Installation Tube Reflector Tube and Reflector Hanger, Wide Pattern Reflector Support, Reflector Side Wide Pattern Extension Bracket (2 per Reflector) Use additional supports in high air movement applications. -
Page 34: Lower Clearance Shield Installation
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 7.4 Lower Clearance Shield Installation Step 7.4.1 Shield Support Strap Assembly Reflector 12" (30 cm) 17" (43 cm) Align Pilot Holes Lower Clearance Shield Locknuts Washers Description Part Number Lower Clearance Shield Package 01397501 Shield Support Strap 01397500... - Page 35 SECTION 7: O PTIONAL EATER CCESSORIES Step 7.5.2 Frame Shield Installation Description Part Number Deco Grille Shield 01365900 Step 7.5.3 Reflector Side Extension Installation for Decorative Grilles Distance "A" Extension Minimum Maximum Part No. Width 2" (4 cm) 6" (15 cm) 01370408 8"...
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Page 36: Protective Grille Installation
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 7.6 Protective Grille Installation Step 7.6.1 Silicone Cap Installation Silicone Cap Description Part Number Grille Grille Section 08050001 Finger Grille End Cap 08050002 Silicone Cap 91915951-6P Step 7.6.2 Grille End Cap Installation Grille Grille End Cap Bend up 90°. -
Page 37: Section 8: Venting
SECTION 8: V ENTING SECTION 8: VENTING Any portion of vent pipe passing through a combustible wall must have an approved thimble WARNING to conform with the above listed codes. Vent pipe must be sloped downward away from the burner 1/2'' (1 cm) for every 20' (6 m). The heater may be individually vented or common vented. -
Page 38: Horizontal Venting
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 8.3 Horizontal Venting FIGURE 17: Tube Termination In noncombustible walls only, vent terminal (P/N 02537801-1P) may be used. For 4" (10 cm) vents in either combustible or noncombustible walls, use Tjernlund VH1-4 (P/N 90502100) or equivalent, insulated vent terminal. -
Page 39: Vertical Ventilation 4" (10 Cm) Pipe
SECTION 8: V ENTING 8.8 Vertical Ventilation 4" (10 cm) Pipe Description Part Number Vent Cap 4" (10 cm) 90502300 8.9 Common Side Wall Venting TOP VIEW Vent Terminal Tjernlund VH1-6 or Equivalent Outside Wall Outside Wall Sweeping 'T' 6" (15 cm) Single Wall Pipe Vent Adapter Connection Vent Adapter... -
Page 40: Common Vertical Venting
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 8.10 Common Vertical Venting Requirements: • Maximum of four heaters can be commonly vented through the roof. • Heaters must be of the same BTU output. • Heaters must be controlled by a common thermostat. -
Page 41: Outside Combustion Air Supply
SECTION 8: V ENTING 8.11 Outside Combustion Air Supply IMPORTANT: If the building has a slight negative 8.11.1 Length Requirements pressure or corrosive contaminants such as Follow the constraints listed on Page 32, Section 8.6. halogenated hydrocarbons are present in the air, an outside combustion air supply to the heater is required. - Page 42 VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 8.11.4 Vertical Outside Air Supply for Double Heater Installation SIDE VIEW Vent Cap Roof For 80 and 115 models, 6" (15 cm) Single Wall Pipe. For 150 or 200 models, 7" (18 cm) Single Wall Pipe. Sweeping 'T' Connection Flex Hose...
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Page 43: Section 9: Gas Piping
SECTION 9: G IPING SECTION 9: GAS PIPING There is an expansion of the tube with each firing cycle. This will cause the burner to move with respect WARNING to the gas line. This can cause a gas leak resulting in an unsafe condition if the gas connection is not made in strict accordance with Figure 18. -
Page 44: Figure 18: Gas Connection With Flexible Gas Hose
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 18: Gas Connection with Flexible Gas Hose CORRECT POSITIONS CAUTION Product Damage Hazard Shut-Off Valve (included with gas hose) must Hold gas nipple securely with pipe wrench be parallel to burner gas inlet. The 3" (8 cm) when attaching gas hose. -
Page 45: Section 10: Wiring
SECTION 10: W IRING SECTION 10: WIRING Heater must be grounded in accordance with applicable codes: United States: refer to National Electrical Code NFPA 70 - latest revision ® DANGER Canada: refer to Canadian Electrical Code, CSA C22.1 Part I - latest revision. If any of the original internal wiring must be replaced, it must be replaced with wiring materials having a temperature rating of at least 105°C and 600 Volts. -
Page 46: Figure 20: Low Voltage Brooder Control Wiring
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 10.1.2 Brooder Control Wiring The satellite heaters will have the J10 pin jumpers set on the left-most pins. The heater outputs on the brooder controller will act as the ON/OFF switch in the control circuit. The R 10.1.3 Operation and W terminals (T24 and T25) on the heater control During the heater operation, the heater will... -
Page 47: Standard Heater Configuration
SECTION 10: W IRING 10.2 Standard Heater Configuration control wiring must be installed between the heaters’ controls as shown on Page 41, Figure 21. From the factory, the heater is configured for zone For additional details or for use with heat demand sensor control. -
Page 48: Central And Satellite Heaters (Zoning Capability)
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 10.3 Central and Satellite Heaters (Zoning Capability) The heater can be configured so that several heaters 10.3.1 Central Heater Configuration within the same heating zone will modulate Central heater configuration is set by positioning of simultaneously with connection to a single heat jumpers on pin blocks (J10 and J9) located on the demand control device. -
Page 49: Figure 23: Satellite Heater Jumper Setting
SECTION 10: W IRING 10.3.2 Satellite Heater Configuration Satellite heater configuration is set by positioning of jumpers on pin block J10 located on the control board inside the heater compartment, See Page 43, Figure 23. Jumper position on J10, shown on Page 43, Figure 23 will configure heater as a satellite heater. -
Page 50: Communication Wiring Within A Zone Of Heaters
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 10.4 Communication Wiring within a Zone of Heaters Satellite heaters will be wired in series to the central Communication wiring uses the T28-T31 terminals heater via low voltage control wiring. on the control, see Page 44, Figure 24. FIGURE 24: Communication Wiring within a Zone of Heaters CENTRAL HEATER CONTROL 44 of 71... -
Page 51: Communication Wiring Within A Zone Of Heaters (Continued)
SECTION 10: W IRING 10.4 Communication Wiring within a Zone of Heaters (continued) Satellite heaters will be wired in series to the central heater via low voltage control wiring. Communication wiring uses the T28-T31 terminals on the control, See Page 44 through Page 45, Figure 24. FIGURE 24: Communication Wiring within a Zone of Heaters (continued) 45 of 71... -
Page 52: Heat Demand Control Wiring
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 10.5 Heat Demand Control Wiring W wires to the heater control and does not connect the Y (cooling) and G (fan) wires to the heater The heater input can be controlled by any one of the control. - Page 53 SECTION 10: W IRING 10.5.3 Analog Signal Modulating Thermostat (P/N allow integral peer to peer BACnet ® MS/TP LAN 90425105) network communications with configurable baud rates and can easily integrate with a building A programmable, 7-day programming, modulating automation system. thermostat can be installed to supply an analog (4- 20mA) or (2-10Vdc with 500 Ohm resistor) control signal to dictate the heater(s) firing rate.
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Page 54: Table 4: Cable Requirements
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 10.5.7 Cable Termination Table lists wiring types, sizes and distances for modulating thermostat with LonWorks ® communication (P/N 90425104), modulating thermostat without communication (P/N 90425105) and BACnet ® programmable thermostat (P/N 90425109) Table 4: Cable Requirements Wire Function Recommended Wire Size... -
Page 55: Figure 26: Analog Control Signal Wiring Diagram
SECTION 10: W IRING For 4-20mA control of the heater(s) firing rate, the 2. Based on sensed temperatures, the BMS will following control conditions apply: output an analog signal for the desired heater(s) firing rate. ON/OFF relay at the external controller or BMS must be wired to R and W terminals on the heater control 3. -
Page 56: Figure 27: Potentiometer Control Wiring Diagram
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 10.5.9 Potentiometer Control Device Potentiometer (10K Ohm"Linear Taper") device offers manual control over heater(s) firing rate. This type of potentiometer can be found at Radio Shack ® Potentiometer dial position directly dictates heater(s) firing rate. -
Page 57: Figure 28: Modulating Thermostat Wiring Diagram (Lonworks® [4-20 Ma] Optional)
SECTION 10: W IRING FIGURE 28: Modulating Thermostat Wiring Diagram (LonWorks ® [4-20 mA] optional) ® NOTE: 1. For non-communicating thermostats without LonWorks bus, thermostat terminals marked "EB" will be marked "_____" and no LonWorks ® bus communication wires are used. * Separate on/off switch is optional for "satellite"... -
Page 58: Figure 29: Modulating Thermostat Wiring Diagram
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 29: Modulating Thermostat Wiring Diagram (LonWorks ® [2-10Vdc with 500 Ohm resistor] optional) ® NOTE: 1. For non-communicating thermostats without LonWorks bus, thermostat terminals marked "EB" will be marked "_____" and no LonWorks ®... -
Page 59: Figure 30: Modulating Thermostat Wiring Diagram With Bacnet (Optional)
SECTION 10: W IRING FIGURE 30: Modulating Thermostat Wiring Diagram with BACnet ® (optional) NOTES: 1. A jumper is pre-installed between phase R(24VAC) and SC1-3 (24VAC Relay). 2. Ground ONLY ONE END of the shielded cable. * Separate on/off switch is optional for "satellite" heaters (install at user level). -
Page 60: Internal Wiring
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 10.6 Internal Wiring See Page 41, Section 10.2 through Page 50, Section 10.5.9 for temperature control device options and wiring schematic. 54 of 71... -
Page 61: Ladder Diagram
SECTION 10: W IRING 10.7 Ladder Diagram 120V GAS VALVE DOOR SWITCH MOTOR AIR SWITCH SURFACE CONTROL IGNITER FLAME SENSOR See Page 41, Section 10.2 through Page 50, Section 10.5.9 for temperature control device options and wiring schematic. 10.8 Electrical Connection to the Burner Electrical Cord or Flexible Conduit BX or Romex Connector... -
Page 62: Low Voltage Control Wiring Installation
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 10.9 Low Voltage Control Wiring Installation Description Part Number Cable Grommet with Tie 91309605 56 of 71... -
Page 63: Section 11: Operation And Maintenance
SECTION 11: O PERATION AND AINTENANCE SECTION 11: OPERATION AND MAINTENANCE WARNING DANGER Electrical Shock Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Turn off gas supply to Allow heater to cool Wear protective gear Disconnect electric heater before service. before service. during installation, before service. - Page 64 VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL service or maintenance. Allow heater to cool before Installation Code and Annual Inspections: servicing. All installation and service of VAL-CO equipment must be performed by a contractor qualified in the Before every heating season, a contractor qualified in installation and service of equipment sold and the installation and service of gas-fired heating supplied by Val-Co and conform to all requirements...
- Page 65 SECTION 11: O PERATION AND AINTENANCE Burner Observation Make sure it is clean and free of cracks or holes. Window Clean and replace as required. Blower Scroll, Wheel and Compressed air or a vacuum cleaner may be used to clean dust and dirt. Motor Burner Cup and Orifice Clear of obstructions (even spider webs will cause problems).
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Page 66: Section 12: Troubleshooting
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 12: TROUBLESHOOTING DANGER Electrical Shock Hazard Disconnect electric before service. More than one disconnect switch may be required to disconnect electric from heater. Heater must be properly grounded to an electrical source. Failure to follow these instructions can result in death or electrical shock. -
Page 67: Control Led
SECTION 12: T ROUBLESHOOTING 12.1 Control LED AMBER, The control inside the heater's control compartment Fast Flashing: Heater is in RETRY mode. is equipped with a tri-color LED. The LED offers comprehensive diagnostic capability. The LED is RED Steady LED: Control FAILURE, showing some form of status signal at all times when No 24 V power supply. - Page 68 VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL RED, 8 flashes: Lockout- Pressure switch failed to operate or modulation current was incorrect. Condition could be caused by: • Pressure Sensor • Pressure Switch (faulty or hoses reversed) • Gas Valve Modulation Coil •...
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Page 69: Troubleshooting Flow Chart
SECTION 12: T ROUBLESHOOTING 12.3 Troubleshooting Flow Chart 63 of 71... - Page 70 VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 64 of 71...
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Page 71: Manifold Gas Pressure Measurement
SECTION 12: T ROUBLESHOOTING 12.4 Manifold Gas Pressure Measurement WARNING Carbon Monoxide Hazard Do not adjust gas valve pressure regulator. Do not tamper with sealed parts. Pressure regulator is factory calibrated for safe operation. Failure to follow these instructions can result in death or injury. -
Page 72: Pneumatic Connections
VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 12.5 Pneumatic Connections 66 of 71... -
Page 73: Section 13: Replacement Parts
SECTION 13: R EPLACEMENT ARTS SECTION 13: REPLACEMENT PARTS WARNING DANGER Electrical Shock Hazard Explosion Hazard Carbon Monoxide Hazard Fire Hazard Use only genuine VAL-CO replacement parts per this installation, operation and service manual. Failure to follow these instructions can result in death, electric shock, injury or property damage. 67 of 71... - Page 74 VM-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 68 of 71...
- Page 75 SECTION 13: R EPLACEMENT ARTS Description Part Number Gas Valve (Natural) 90033105K Gas Valve (LP) 90033104K Tube Gasket 02568200 Blower Inlet Gasket (80, 115 models) 03050900 Blower Inlet Gasket (150, 200 models) 90709910 Blower Assembly (80, 115) 90708602-P Blower Assembly (150, 200) 90709900-P Air Collar (80, 115 models) 91911700...
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Page 76: Section 14: General Specifications
(Btu/h) X (Btu/h) X (1000) Model (1000) Minimum Space Spot Min. to Max. Min. to Max. VM-80 52 to 80 55 to 80 20' (6m) 12'-15' (3.6 - 4.5 m) 11' (3.3 m) VM-115 75 to 115 78 to 115 30' (9m) 15'-20' (4.5 - 6 m) - Page 77 SECTION 14: G ENERAL PECIFICATIONS 71 of 71...
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