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Janfire NH Installation And Servicing Instructions

Integral pellets burner with external auger
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Installation and Servicing Instructions
Janfire NH/Integral Pellets Burner with External Auger
For heating contractors. Please read carefully prior to installation and servicing.
Due to constant development, Janfire AB reserves the right to change part or parts of this publication at any time without
notice.
Janfire NH Burner Service Installation Manual 3.31.09 - Technical specifications are subject to change without prior
notice.
)
1(38

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Summary of Contents for Janfire NH

  • Page 1 Janfire NH/Integral Pellets Burner with External Auger For heating contractors. Please read carefully prior to installation and servicing. Due to constant development, Janfire AB reserves the right to change part or parts of this publication at any time without notice.

  • Page 2: Table Of Contents

    Settings for Maintenance Fire Stopping the NH Burner NH Burner Set-up NH Burner Draft Set-up and Control Combustion Adjustments NH Burner Menu System Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 2(38 notice.

  • Page 3: Safety Instructions

    The warning texts are in hierarchical order. The text “DANGER!” also includes the possibility of the events covered by “WARNING!” or “CAUTION!” Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 3(38 notice.

  • Page 4: Safety Instructions For Installation And Service

    1.5 Compliance Declarations The Janfire NH burner has been tested and approved for use with the MESys 4000 and 6000 boilers and meets the UL 391-2006 and CAN/CSA B366.1-M91 standards. All electrical components of the Janfire NH burner are UL approved.

  • Page 5: Technical Data

    External auger cannot exceed 14 ft (4.30 m). Weight 55 lbs (25 kg) Figure 1. Dimensional drawing NH-burner (All measurements in mm) Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 5(38 notice.

  • Page 6: Operational Description

    **Note: Contact your pellet supplier regarding the dry matter energy value, or European Net Heat Value (ENHV), which is discounted for pellet moisture content as the Janfire NH burner requires this specific value. US PFI (Pellet Fuel Institute) pellet standards at this point do NOT record this value and the PFI energy content value can NOT be used directly.
  • Page 7 In order to modulate burner output, a PT-100 sensor measuring the boiler water temperature must be connected. PID Control must be activated, “service menu 66”. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 7(38 notice.
  • Page 8 2 boiler water and corresponding outdoor temperatures. These 2 data points define the heating curve. Refer to service menu points 81 – 84 for details. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 8(38...
  • Page 9 The moving base of the burning chamber scrapes away slag and waste material, feeding it into the boiler firebox based on pre-programmed pellets consumption. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 9(38...
  • Page 10 Pellet boiler and NH pellet burner system complete with fill auger and pellet storage. Figure 5. Function description Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 10(38 notice.

  • Page 11: Boiler Installation

    Combustion Air The Janfire NH pellet burner requires ample fresh air for combustion to ensure proper operation. Check ventilation openings for blockages. Ensure required size of free combustion air opening(s) in sq. ft. to be at least equal to three times the cross sectional area of the chimney.

  • Page 12: Mounting The Burner

    6. Attach the burner electrically to the boiler aquastat according to Fig. 15 electrical wiring diagram. 7. The NH pellet burner is supplied with an outdoor sensor and boiler sensor. Attach the common sensor wiring box to the right side of the boiler. Route the boiler sensor underneath the boiler top jacket panel to the boiler well located in the top of the rear boiler section.
  • Page 13 Refer to Fig. 15, pg. 37 for wiring instructions. All electrical installation and service should be carried out by qualified personnel and in accordance to local standards and codes. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 13(38 notice.

  • Page 14: Mounting And Elongating The Extension Auger

    Avoid sharp bends or slack in the drop tube that can cause a blockage in the external auger. Cut off excess length with a sharp knife. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 14(38...

  • Page 15: Pellet Level Adjustment

    Be very careful not to turn screw too hard. 5. Reinstall the cover plug and drop tube and secure with the furnished clamps. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 15(38...

  • Page 16: Pellet Volume Density Adjustment

    In this mode the burner output will modulate between two preset limits by using the PID regulator. The modulation function can be inactivated in menu step 66. If modulation is inactivated, the NH burner will run at a fixed output level, see text below.

  • Page 17: Pellet Filling Before Starting The Nh Burner

    “!!ERROR!!! External feed” appears on the display screen. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 17(38...

  • Page 18: Calibration Of Temperature Sensors

    “73 Offset Boiler temperature will be adjusted in the same way, But in this case, it must be adjusted to show its actual temperature. “75 Offset Outdoor” wil be adjusted to the outdoor temperature. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 18(38 notice.

  • Page 19: Starting And Stopping The Nh Burner

    NOTE: The main power switch is usually located on the wall next to the boiler or by the entrance to the boiler room. 5. After power is applied, press “ON/OFF” if “Stop waiting” shows in the display. The NH Burner will execute an ashscrape, the external auger will feed pellets for up to two minutes and the ignition process will begin.

  • Page 20: Settings For Maintenance Fire

    The maintenance mode is specifically designed to keep a very small fire (2000 Btu/hr) in the burner and allow continued burner operation without automatic ignition. The burner operates normally to maintain desired water temperature. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 20(38 notice.

  • Page 21: Stopping The Nh Burner

    NOTE: To restart the burner press the “ON/OFF”. NOTE: Burner will remain stopped after power outage if manually stopped. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 21(38 notice.

  • Page 22: Nh Burner Set-Up

    *The factory setting for dosage feeding time setting (service menu step: 23) is 0.80 sec. Adjust this value to vary CO2 and O2 levels. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 22(38...
  • Page 23 The pellet fuel delivery is adjusted proportionately for all output levels as the fan speed is fine tuned automatically with each output level. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 23(38...

  • Page 24: Nh Burner Menu System

    NH Burner Menu System The Janfire NH burner menu system has two levels: a user menu and a service menu. Janfire NH Menu system Control lamp: Green = Normal, Yellow = Warning, Red = Error One press: shuts down the burner. (Total stop) Press again: continues burner operation where it left off.
  • Page 25 *These two parameters should only be used by the installing contractor at the initial start-up of the system. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 25(38...
  • Page 26 Service Menu The Service Menu contains many values that allow for optimized operation of the NH burner for a variety of pellet conditions. Each menu setting is identified by a number and each setting has a factory default value. Start / Stop One press: shuts down the burner.
  • Page 27 How long the fan blows at 12 kW (minutes) see 24-30 time: 0:45 35. Aft. bl. 51 MBTU How long the fan blows at 15 kW (minutes) see 24-30 time: 1:00 Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 27(38 notice.
  • Page 28 NH Burner will decide at this setting to either initiate an ash scaping (below) or continue in run mode (above setting). Actual Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 28(38 notice.
  • Page 29 Changes the power level when a fast temperature change is detected. 71. Offset -100 - +100 Burner bowl XX°F Temperature calibration for burning cup temperature sensor Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 29(38 notice.
  • Page 30 Cooling burner bowl to reach limit value set in service menu 48 down burner Waiting for pellets Waiting to fill up burner internal pellet hopper Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 30(38 notice.
  • Page 31 2.) Replace boiler sensor to correct. Low Voltage Burner circuitry detected a low supply voltage and burner shut down. Continued low voltage status. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 31(38 notice.
  • Page 32 Shorten interval for ash scraping in user menu.  Control and fine tune combustion, see section 6.2. PT100 Sensor Resistive Value Curve Temperature (F) Figure 10. PT Sensor Curve Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 32(38 notice.
  • Page 33 Glide bushing 6x10x8 11815007 Drag arms 11802017 Bottom chassis 11802014 Flame deflector 11802006 Scraper motor assembly See Fig. 14 Arm spring 11865002 Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 33(38 notice.
  • Page 34 Burning cup frame 11802014 Element Backer 11842004 11835002 10 Amp circuit breaker 71842045 Fuse Holder 71842046 Fuses (15 Amp fast blow) 71842043 Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 34(38 notice.
  • Page 35 11805001 Air guide 11801030 Jam Nut 81068005 Burner hopper 11801039 Drop Shaft 11801038 Flange screw M-6 x 10 80661003 Auger bearing 51830008 Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 35(38 notice.
  • Page 36 Figure 14. Ash scrape motor close-up Description Part No. Scraper motor assembly 51830012 Motor frame 11801019 Scraper cam 11801028 Lock nut 80567001 Allen head screw M5x40 80560001 Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 36(38 notice.
  • Page 37 Figure 15. Field wiring instructions *Required for storage bins with service access. **Installation of L4006A requires service menu #80 = YES Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 37(38 notice.
  • Page 38 662 24 Åmål Sweden Maine Energy Systems, LLC reserves The right to make changes without notice Due to continuing engineering and technological advances. Janfire NH Burner Service Installation Manual 4.16.09 - Technical specifications are subject to change without prior 38(38 notice.

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