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Midco Unipower VA Series Oem Installation & Start Up Instructions

Variable air gas burners oem start up
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OEM Installation & Start Up Instructions
In the United States, installation must conform with local
codes or in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1-latest edition available from
American National Standard Institute. Further reference
should be made to the recommendation of your fuel supplier.
In Canada, installation must conform with local codes or in
the absence of local codes, with Installation Codes for Gas
Burning Appliances and Equipment, Standard CAN/CGA
1-B-149.1 or 2.
WARNING: Additions, changes, conversions and
service must be performed by an authorized Midco
representative, service agency or the fuel supplier. Use
only MIDCO specifi ed and approved parts.
INSTALLER: Inform and demonstrate to the user the correct
operation and maintenance of the gas utilization equipment.
Inform the user of the hazards of storing fl ammable liquids
and vapors in the vicinity of this gas utilization equipment
and remove such hazards. Affi x this manual and associated
literature to the burner.
CODE COMPLIANCE IS THE SOLE RESPONSIBILITY
OF THE INSTALLER.
USER: Retain this manual for future reference. If other
than routine service or maintenance as described in this
manual and associated literature is required, contact a
qualifi ed service agency. DO NOT ATTEMPT REPAIRS.
An inadvertent service error could result in a dangerous
condition.
Midco® International Inc.
4140 West Victoria Street
Chicago, Illinois 60646
toll free 866.705.0514
tel
773.604.8700
fax
773.604.4070
web
www.midcointernational.com
e-mail sales@midcointernational.com
SAFETY INFORMATION TERMS: The following terms are used to identify hazards, safety precaution of special
notations and have standard meanings throughout this manual. They are printed in all capital letters using a
bold type face as shown below, and preceded by the exclamation mark symbol. When you see the safety alert
symbol and one of the safety information terms as shown below, be aware of the hazard potential.
DANGER:
Identifi es the most serious hazards which will result in severe personal injury or death.
WARNING:
Signifi es a hazard that could result in personal injury or death.
CAUTION:
Identifi es unsafe practices which would result in minor personal injury or
product and property damage.
Quality Designed for Proven Performance
Unipower VA Series
Variable Air Gas Burners
WARNING: If the information in these instructions
is not followed exactly, a fi re or explosion may result,
causing property damage, personal injury or death.
Do not store or use gasoline or other fl ammable vapors and
liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electrical switch; do not use any
phone in your building.
Immediately phone your gas supplier from another
building. Follow the gas supplier's instructions. If
you cannot reach your gas supplier call the fi re
department.
Installation and service must be performed by a qualifi ed in-
staller, service agency or the gas supplier.
BURNER MODEL: _____________________________________
BILL OF MATERIAL
NUMBER: ____________________________________________
SERIAL NUMBER #: ___________________________________
WIRING DIAGRAM: ___________________________________
FOR SERVICE CONTACT
Name:
____________________________________________
Address: ____________________________________________
____________________________________________
Phone:
____________________________________________
Date of Installation: ___________________________________
AVOID ERROR IN PARTS SELECTION. When ordering use
complete MIDCO Part Number and Description. Furnish Burner
Model Number, Bill of Material Number and Serial Number (if
available) from the specifi cation plate found on the product
IMPORTANT: Availability of parts as well as specifi cations are
subject to change without notice. Please consult factory for item
availability.
OEM Start Up
IHEA
U L
C
US
®
Member
LISTED
619
8478 00
Printed in USA

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Summary of Contents for Midco Unipower VA Series

  • Page 1 SERIAL NUMBER #: ___________________________________ • WARNING: Additions, changes, conversions and WIRING DIAGRAM: ___________________________________ service must be performed by an authorized Midco representative, service agency or the fuel supplier. Use only MIDCO specifi ed and approved parts. FOR SERVICE CONTACT •...
  • Page 2 Depth Table 1. Burner Specifi cations Standard burners are shipped as NATURAL gas models. Contact Midco for PROPANE gas burners. 1 MBH = 1,000 Btu/hr All Ratings Based on 1000 BTU/Cu. Ft. NATURAL, 2500 BTU/Cu. Ft. PROPANE at sea level. Derate burner for altitude over 2,000 feet by 4% for each 1,000 feet above sea level.
  • Page 3 Check Air Damper To open, loosen the nut that secures the damper and pull it outward. Then retighten the nut. Slide Loosen the Nut Outward to Open Figure 2. Air Damper _____________________________________ 8478 00 Midco International Inc.
  • Page 4 Main Gas Regulator Outlet Pressure Tap Main Gas Regulator Main Supply Gas Valve Inlet Gas Pressure Tap Pilot Gas Regulator Pilot Gas Manifold Pressure Tap Pilot Solenoid Valve Figure 3. Component and Pressure Tap Locations _____________________________________ 8478 00 Midco International Inc.
  • Page 5 Turn the burner up to its actual fi ring rate applying an input signal of 10V DC for maximum fi ring rate Confi rm that the inlet pressure remains between the maximum and minimum values specifi ed on the Burner Rating Label, see Figure 5. 8478 00 Midco International Inc.
  • Page 6 If necessary turn the screw on the ratio regulator, see Figure 4, in order to adjust the manifold pressure. Model Pressure V1-V4 0.8-0.9″ W.C. V5-V6 0.2-0.3″ W.C. V7-V10 0.5-0.6″ W.C. Table 2. Figure 4. Ratio Regulator _____________________________________ 8478 00 Midco International Inc.
  • Page 7 Turn on power switch on burner control panel door Set heat enable and temperature controller to desired operating condition and temperature Burner will start and operate based on 2 to 10V DC analog input provided _____________________________________ 8478 00 Midco International Inc.
  • Page 8 1. If a key is not pressed for 20 seconds or the enter key is held for 3 seconds while in program mode, the control will return to normal mode. 8478 00 Midco International Inc.
  • Page 9 Determine the functionality of the inputs by specifying which type of burner the control is being used on. VA-A is for VA series burners that use an intermittent pilot VA-b is for VA series burners that use an interrupted pilot NOx is for Midco Low-NOx series burners 8478 00 Midco International Inc.
  • Page 10 PASS The user can use this parameter to enable or disable the password. If the password is enabled, one must enter it in order to access the program menu. The installed version of the software. 8478 00 Midco International Inc.
  • Page 11 8478 00 Midco International Inc.
  • Page 12 Midco International Inc. - 4140 West Victoria Street - Chicago, Illinois 60646 - toll free 866.705.0514 ® tel: 773.604.8700 - fax: 773.604.4070 - web: www.midcointernational.com - e-mail: sales@midcointernational.com 9001 8478 00 Printed in USA...