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Hastings Counterflo CF Series Installation And Service Manual

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See also: Installation and Servicing Manual
ISCF-1
March 2012
Supersedes April 2011
Installation and Service Manual
COUNTERFLO
CF SERIES HEATERS
GAS FIRING
WARNING
FOR YOUR SAFETY
The use and storage of gasoline or other flammable vapors
and liquids in open containers in the vicinity of this appliance
is hazardous.
Notice
Read These Instructions Before Installation

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  • Page 1 ISCF-1 March 2012 Supersedes April 2011 Installation and Service Manual COUNTERFLO CF SERIES HEATERS GAS FIRING WARNING FOR YOUR SAFETY The use and storage of gasoline or other flammable vapors and liquids in open containers in the vicinity of this appliance is hazardous.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Section I. – General Information Purpose ............Shipping .

  • Page 3: Section I. - General Information

    The purpose of this manual is to present a guide for proper installation, maintenance, and operation of the Counterflo CF Series heaters, and to supplement, but not to replace, the services of qualified field service personnel to supervise the initial start-up and adjustment of the Counterflo unit.
  • Page 4 2. Blowers Depending on heater size, there are two or three centrifugal, double width, double inlet, forward curved, class I industrial fans mounted on a one-piece shaft with self-aligning 200,000 hour prelubricated ball bearings. Blower wheels are statically and dynamically balanced. Fixed drives are standard on all units.

  • Page 5: Section Ii. - Installation Procedure

    SECTION II. – INSTALLATION PROCEDURE This equipment shall be installed and wired in accordance with regulations of the National Board of Fire Underwriters, National Electric Code, Gas Burning Appliance and Equipment, CGA B.149.1 & 2, applicable Provincial Regulations for the class, and local governing bodies which should be carefully followed in all cases.

  • Page 6: Combustion Air Openings

    The following recommendations are not intended to supplant requirements of federal, state or local codes having jurisdiction. All local authorities having jurisdiction should be consulted before the installation is made. The heater should be installed in accordance with the standard of the National Board of Fire Underwriters for the class and all wiring connections must conform to the National Electric Code.
  • Page 7 Type of DIMENSIONS IN INCHES Qty. of Hood/ MODEL Nozzles Nozzle 40/55 50¾ 5/16 104½ 16¾ 15¼ 60/85 94⅝ 39 ⅛ 61⅛ 22¾ 49⅝ 1½ 5/16 114⅛ 100/125 98⅛ 44⅝ 70⅝ 21⅝ 51¾ 5/16 118⅛ 150/175 55⅛ 91⅛ 25¼ 5/16 132½...

  • Page 8: Location Of Accessories

    D. LOCATION OF ACCESSORIES Where applicable, standard or optional accessories will be placed inside the fan section of the unit for shipment, and must be removed and installed by the mechanical or electrical contractor. E. ELECTRICAL CONNECTIONS All wiring must comply with all applicable local, state, provincial, and national electric codes. Since shipment of unit may require disassembly after factory flame test, reconnection of some electrical devices will be required in the field.
  • Page 9 Furnished and Installed by Others Furnished By Factory, Installed By Others Factory Furnished And Installed ITEM DESCRIPTION Drip Leg Main Gas High Pressure Hand Shut-Off Valve (If Required) Main Gas High Pressure Regulator (If Required) Vent Line Thru Roof To Outside Atmosphere Main Gas Hand Shut-Off Valve Main Gas Pressure Regulator Safety Shut-Off Valve...

  • Page 10: Exhaust Duct Connection

    G. EXHAUST DUCT CONNECTION Installation of exhaust stack must comply with regulations of the National Board of Fire Underwriters and local governing bodies. The exhaust stack, exhaust stack connector, exhaust stack support and miscellaneous items related to the exhaust stack are to be supplied and installed by others. Exhaust stack located inside the building must be positive pressure vent.
  • Page 11 MODEL 4” 8” 8” 13” 13” 18” 18” 6-1/2” 3-3/4” 69 –1/4” 16” 7-3/8” 40/55 5” 10” 10” 16” 18” 22” 26” 7 5/8” 4-3/8” 72-1/16” 20” 8-5/16” 60/85 5”/6” 10”/12” 10”/12” 16”/18” 18”/20” 22”/24” 26”/28” 9-1/4” 5-1/4” 73-1/16” 20”/24” 9-1/2”...
  • Page 12 -10-...

  • Page 13: Section Iv. - Start-Up

    3. Check all electrical connections in the main control panel. 4. Check that all fuses are installed and that fuse sizing agrees with the fuse chart affixed on the inside of the main control panel door. 5. Check to see if all gas connections are tight and that all joints have been properly sealed. 6.
  • Page 14 b. Combustion air and exhaust air proving switches are factory set for 0.2” to 0.4” W.C. c. Recheck all set screws on motor sheave and fan sheave. Check alignment of belt(s) and pulley(s). Run blower for a few minutes and adjust motor take-up if necessary. Motor is mounted on an adjustable base shown on Figure 9.
  • Page 15 impinge on the rear wall of the chamber. Figure 10C illustrates proper flame travel. This long steady flame provides adequate time for complete combustion and balanced heat release to all surfaces of the chamber. Typical draft conditions are noted in Figure 11 for firing at full rate capacity.
  • Page 16 Adjust gas pressure regulator on burner to the unit name plate operating pressure rating while firing with the manual gas cock in the wide open position. Read gas meter serving burner, input should be approximately that stated on the burner name plate. If not, readjust regulator to obtain rated input.

  • Page 17: Fan Operation

    As Read____________ Exhauster Design Speed ____________ RPM Drive Fixed_________ Variable________ As Read____________ BURNER OPERATION MFG. HASTINGS MAXON OTHER _______________ MODEL ____________________ ________________ _______________ FUEL TYPE NG or LP DESIGN INLET PRESSURE _______________ “ W.C./PSI AS TESTED ____________ : W.C./PSI BURNER (High Fire) OPERATING DIFF. PRESSURE (7” W.C. MAX) AS TESTED _________” W.C.
  • Page 18 This unit has been tested and inspected to insure that: (1) Fabrication, wiring, quality and location of all materials agree with Hastings HVAC Standard. (2) Bearings, sheaves, belts, and motors have proper alignment, lubrication and adjustment. (3) Controls, valves and programmers have proper sequence of operation and setting.
  • Page 19 THIS WILL YIELD A DIFFERENTIAL PRESSURE. AFTER THE BURNER HAS BEEN RUNNING FOR 15 TO 20 MINUTES SET THE OPERATING PRESSURE TO HASTINGS SPECIFIED PRESSURE LISTED ON THE NAME PLATE OF THE HASTINGS UNIT WHILE IN THE HIGH FIRE MODE. -17-...
  • Page 20 -18-...
  • Page 21 CHAMBER BREECHING PRESSURE PRESSURE COUNTERFLO FULL RATED EXHAUSTER RPM (Neg. “W.C.) (Neg. “W.C.) MODEL # MBH OUTPUT 1400 .055 1500 1300 2030 1000 1500 1250 1900 1500 1640 1.10 1750 1875 1.25 2000 1800 1.40 2250 2000 1.48 2500 2000 1.50 2750 1635...

  • Page 22: Section V. - Maintenance Schedule And Lubrication Requirements

    SECTION V. -- MAINTENANCE SCHEDULE AND LUBRICATION REQUIREMENTS A. MAINTENANCE SCHEDULE – Caution: Always wear proper protective gear with face shield while operating these units. Weekly 1. Check that fan belts are tight and sheaves are lined up. 2. Check gas pressure at burner. Monthly 1.

  • Page 23: Lubrication Instructions

    B. LUBRICATION INSTRUCTIONS ITEM Manufacturer Bearing Type Recommendation All 3 phase fan motors (1 HP U.S. or equal Single row ball Note #1 to 100 HP) ODP or TEFC bearings Fractional HP exhauster Century, G.E., or Sealed ball Lubrication Not motors, single phase, ODP or equal bearings...

  • Page 24: Section Vi. - Troubleshooting

    3. Measure the failure response time, (time between flame absence and shutting of safety shut- off valve). It should be less than 2-3 seconds. 4. The unit should go into a safety shutdown. 5. Reset Flame Safety and open manual shut off valves. 6.

  • Page 25: General Troubleshooting Tips

    At this point, all common causes of trouble have been covered and one or more of the remedies suggested should have corrected the malfunction. However, if the unit still does not function properly, notify the nearest Hastings HVAC Field Service Engineer at 1-800-228-4243 or 4270.
  • Page 26 LEAVE PAPER OR RAGS AROUND THE UNIT. DO NOT TAMPER WITH UNIT OR CONTROLS – CALL YOUR SERVICE MAN. For Service Parts and Technical Assistance call: Hastings HVAC Service Co. at (800) 228-4243 or (800) 228-4270 Service Agent : Name______________________________________________ Address____________________________________________...
  • Page 28 3606 Yost Avenue ● Hastings, NE 68901-1966 Phone (402) 463-9821 ● Fax (402) 462-8006 sales@hastingshvac.com ● www.hastingshvac.com service@hastingshvac.com...

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