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Hastings Counterflo CF Series Installation And Service Manual

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ISCF-1
April 2011
Supersedes May 2008
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 April 2011 Supersedes May 2008 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: Equipment Description

    D. EQUIPMENT DESCRIPTION The Counterflo heater is a rugged industrial grade space heater. Models are available for vertical upright mounting indoors, or outdoors, and horizontal mounting for indoor floors, ceiling suspension or rooftops. 1. Cabinet and Frame Rugged channel iron frame and all aluminized steel cabinet surfaces are painted with heat and corrosion resistant industrial enamel.

  • Page 5: Section Ii. - Installation Procedure

    6. Remote Control Panel (Optional) The optional panel is furnished with a heavy duty toggle switch and three 115 volt signal lights as depicted in Figure 8. The switch controls the blower and the burner. The signal lights indicate supply blower operation (white light marked “blower”), burner operation (amber light marked “heating”), and safety lockout (red light marked “lockout”).

  • Page 6: Combustion Air Openings

    For convenient access for maintenance, provide 24” clearance at the right side, as seen when facing the burner, and 36” at the rear. Position the heater, if practical, with the left hand side (as seen from burner end) next to any adjacent wall. The following recommendations are not intended to supplant requirements of federal, state or local codes having jurisdiction.
  • Page 7 Type DIMENSIONS IN INCHES Qty. MODEL Hood/ 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 22½ 200/225/250 130¾...

  • Page 8: Location Of Accessories

    Locate the Counterflo heater exactly level. Special attention should be given to the exhaust duct connections, electrical power and control hookup points, and fuel connection points. This information should be cross-checked with the position of support beams and stand pipes to insure that clearance dimensions coincide with those of the unit.
  • Page 9 Furnished and Installed by Others Furnished By Factory, Installed By Others Factory Furnished And Installed ITEM DESCRIPTION Drip Leg λ Main Gas High Pressure Hand Shut-Off Valve (If Required) λ λ Main Gas High Pressure Regulator (If Required) Vent Line Thru Roof To Outside Atmosphere λ...

  • 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 40/55 4” 8” 8” 13” 13” 18” 18” 6-1/2” 3-3/4” 69 –1/4” 16” 7-3/8” 60/85 5” 10” 10” 16” 18” 22” 26” 7 5/8” 4-3/8” 72-1/16” 20” 8-5/16” 100/125 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”...
  • 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 unit bill of material. 5. Check to see if all gas connections are tight and that all joints have been properly lubricated. 6.
  • Page 14 2. Prior to starting the heating sequence of the system, air needs to be purged from gas supply line up to the Hastings equipment. CAUTION: The use of soap bubbles or an electronic leak detector is recommended to check for leaks. Do not depend on sensing the odor of gas to determine if the air has been purged from gas line.
  • Page 15 WARNING: Never stand within the swing radius of the access door when making flame observations through the peephole. Proper flame travel within the stainless steel combustion chamber differs from the pattern usually desired for a refractory lined furnace. Never adjust the burner to produce a short “bushy”...
  • 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 -15-...
  • Page 18 CHAMBER BREECHING PRESSURE PRESSURE COUNTERFLO FULL RATED (Neg. “W.C.) (Pos. “W.C.) EXHAUSTER RPM 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 19: Section V. - Maintenance Schedule And Lubrication Requirements

    12. The typical sequence of operation for an On-Off gas-fired unit is as follows: a. Closing fused disconnect switch (FD) will energize 115 volt control circuit through control transformer (T2). b. The On-Off burner switch (XB) on the master control panel will operate the blower. Unit burner operation is controlled by the On-Off thermostat (RT).

  • Page 20: Lubrication Instructions

    8. Clean gas pressure regulator. 9. Turn main disconnect switch to “off” and open control box. Make sure controls are free from dust and grease. Check and clean relay and starter contacts, and inspect for loose wiring. Do not use file, sandpaper, or other abrasives to clean contacts – clean with notebook or heavy wrapping paper, not newspaper.
  • Page 21 Air Proving Switch: 1. Turn unit on and set Thermostat to call for heat. 2. With heater in operation, manually trip the Blower Motor Overload Relay, to shut off blower motor. 3. The burner should shut off, and the unit should go into a Safety Shutdown. 4.

  • Page 22: Section Vi. - Troubleshooting

    SECTION VI. – TROUBLESHOOTING A. TROUBLESHOOTING GAS-FIRED UNITS 1. If blower fails to operate, check to see if: a. Main disconnect switch or circuit breaker is closed. b. All main fuses (if disconnect switch used) are in line. c. Control transformer is supplying 115 volts to control circuit. d.

  • Page 23: 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 24 REGULATIONS OF THE AUTHORITIES HAVING JURISDICTION. REFER TO CSA STANDARD B139 FOR RECOMMENDED INSTALLATION PRACTICE; For Service Parts and Assistance call: Hastings HVAC Service Co. at (800) 228-4243 or 4270 3606 Yost Avenue ● Hastings, NE 68901-1966 Phone (402) 463-9821 ● Fax (402) 462-8006 ●...

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