Dunkirk 95M-200 Parameter Manual
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Dunkirk 95M-200 Parameter Manual

Dunkirk 95M-200 Parameter Manual

Gas-fired direct vent modulating hot water boiler
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95M-200 GAS-FIRED DIRECT VENT
MODULATING HOT WATER BOILER
!
WARNING
Revise boiler control parameters only if you
fully understand the purpose and result of
the changes. Tampering with the control
settings in this manual will void the warranty
and can result in unreliable operation, with
possible severe personal injury, death, or
substantial property damage.
!
WARNING
This document must only be used by
a qualified heating installer or service
technician. Read all instructions, including
the Installation Manual (P/N# 240006103), the
Control Manual and Operating Instructions
(P/N# 240006104), the User's Information
Manual (P/N# 240006106), and this Parameter
Guide before attempting to program the
control, and be sure to perform all steps in
the order specified. Failure to comply could
result in severe personal injury, death, or
substantial property damage.
IMPORTANT: Installation must comply with local
requirements and with the National Fuel Gas
Code, ANSI Z223.1 for U.S. installations or CSA
B149.1 or B149.2 for Canadian installations.
DO NOT DESTROY THESE INSTRUCTIONS!!
Please read carefully and keep in a safe place
for future reference.
!
!
P/N 240006105, Rev. 1.0 [04/06]

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  • Page 1 95M-200 GAS-FIRED DIRECT VENT MODULATING HOT WATER BOILER WARNING Revise boiler control parameters only if you fully understand the purpose and result of the changes. Tampering with the control settings in this manual will void the warranty and can result in unreliable operation, with possible severe personal injury, death, or substantial property damage.

  • Page 3: Table Of Contents

    95-200M GAS FIRED DIRECT VENT MODULATING HOT WATER BOILER PARAMETER GUIDE P/N# 240006105, Rev. 1.0 [04/06] • Printed in USA • Made In USA TABLE OF CONTENTS Safety Symbols and Warnings....Overview of Control Parameters....Parameter Explanations......How To Set Parameters......Parameter Reference Table......

  • Page 4: Overview Of Control Parameters

    II - OVERVIEW OF CONTROL PARAMETERS BOILER CONTROL PARAMETERS in the Installation Manual (P/N# 240006103) for more information. This manual includes detailed explanations of the adjustable parameters. See Section III, “Parameter Fan Coil Systems: Systems using fan coil units Explanations,” for more information. respond to heat input rapidly, and may require larger differential settings for best performance.
  • Page 5 DEFAULT PARAMETER SETTINGS ON GASCOM SOFTWARE AND BOILER DISPLAY DO NOT CHANGE ANY PARAMETER UNLESS THE APPLICATION REQUIRES SPECIAL SETTINGS. PARAMETER/DESCRIPTION GASCOM DISPLAY T3 Set DHW 150°F DHW System CH System T1 Top CH-Mode 180°F T1 Foot CH-Mode 120°F T4 Minimum 0°F T4 Maximum 60°F...

  • Page 6: Parameter Explanations

    III - PARAMETER EXPLANATIONS • Automatic Temperature Boost: Compensates WARNING for required pick-up times and variations in heating load requirements by automatically increasing set Revise boiler control parameters only if you point temperature when a call for heat exceeds a fully understand the purpose and result of the specified time (Parameter 11).
  • Page 7 T1 Foot (Parameter 5) is the outlet water FIGURE 2 - TYPICAL RESET CURVES temperature the boiler tries to maintain Outdoor Reset Example A whenever the outside temperature is higher than T4 Maximum (Parameter 7). M/R Limit When outside temperature is between T4 A/R Limit T1 Top Set at 180°F Maximum and T4 Minimum, the control...
  • Page 8 hybrid systems, with finned tube radiation and drops about 2° F for each minute the thermostat radiant slab, provide additional low temperature is open. protection for the radiant portion of the system, Range: 1-30 minutes because Parameter 4 (T1 Top) is likely to be set higher than on a radiant-only system.
  • Page 9 • Maximum fan speed can be set separately for space NOTE: Boiler display shows fan speed in hundreds of rpm. A heating and DHW using Parameters 13 and 15. value of 48 would mean a speed of 100 x 48, or 4800 rpm. •...
  • Page 10 SPACE HEATING DIFFERENTIALS (PARAMETERS differentials are greater when a heat call starts or 22 AND 23) stops, as shown. The differentials decrease with time until they equal Parameters 22 and 23. • The term “differential” is also referred to as SETTING “OFF”...

  • Page 11: How To Set Parameters

    IV- HOW TO SET PARAMETERS METHOD 1 – BOILER DISPLAY 12. Press the “RESET” button to exit. Using the six buttons on the front of the boiler (below) METHOD 2 – CONTROL INTERFACE KIT and the proper code, the boiler can be both monitored and modified using the digital display.

  • Page 12: Parameter Reference Table

    V - PARAMETER REFERENCE TABLE Range Boiler Display Para. Name Display Position Description Gascom Boiler Software Display • T3 is the DHW temperature by an immer- sion sensor. Storage DHW: • DO NOT CHANGE this parameter from 68° to 158°F the factory setting.
  • Page 13 Range Boiler Display Para. Name Display Position Description Gascom Boiler Software Display Initial reading: When outside temperature drops to this T4 Frost -22° to 50°F -22 to 50 number, the boiler circulator will run con- Protection After 2 to 3 seconds: stantly.
  • Page 14 Range Boiler Display Para. Name Display Position Description Gascom Boiler Software Display Initial reading: • Use this parameter to increase the mini- 22 to 52 (100’s mum input of the boiler. Increasing fan 2250 to 5200 of rpm) speed increases boiler input; decreasing Minimum fan After 2 to 3 seconds: fan speed decreases input.
  • Page 15 Range Boiler Display Para. Name Display Position Description Gascom Boiler Software Display • Differential may also be referred to as Initial reading: “hysteresis” • This parameter has no effect unless a DHW detec- DHW sensor is used - not recommended tion differen- -2°...
  • Page 16 Range Boiler Display Display Position Para. Name Description Gascom Boiler Software Display First digit (2nd circuit): Initial reading: • DO NOT CHANGE parameter 34 first dig- it. Second central heating circuit operation is not currently supported . • 0 (2nd CH circuit off ) - No second CH circuit operation (LEAVE AS IS) •...
  • Page 17 Range Boiler Display Para. Name Display Position Description Gascom Boiler Software Display Initial reading: First digit (3-way valve): • Control module readout: Initial reading - P.35 (indicates Parameter 35) after 2 to 3 second, change the parameter setting: Position 1,2 = blank Position 3 = Parameter 35 first digit (3 way valve or pump) Position 4 = Parameter 35 second digit...
  • Page 18 Range Boiler Display Para. Name Display Position Description Gascom Boiler Software Display Initial reading: Use this parameter, if desired, to manually -1 (auto op- -1 (auto) set the boiler at a fixed input. The manual Manual eration) operation will only continue for 15 minutes. fanspeed After 2 to 3 seconds: 0 to 100 (%)

  • Page 19: Installing Gascom Software

    Gascom Software is owned by Honeywell International, Inc., and is provided under license to ECR International to configure and monitor the Honeywell MCBA controller found in the 95M-200 Series Boiler. © 2006 Honeywell International, Inc. Click “Next” to begin the installation. The following screen will appear when the software is installed.

  • Page 20: Using Gascom Software

    VII - USING THE GASCOM SOFTWARE CONFIGURING YOUR GASCOM SOFTWARE SETTING PARAMETERS W/GASCOM SOFTWARE After successfully installing the Gascom Software, close Connect the GCI interface from the communications all windows on your desktop and use the “Gascom_ kit to the serial port on the computer. Connect v1.0”...

  • Page 21: Mcba Monitoring And Error Logs

    The computer overwrites ALL of the parameters on TO CHANGE A PARAMETER the control. The first digit of the front display will flash once the parameters are received. Choose the parameter by double-clicking the left mouse button on its description OR highlighting it RESTORING DEFAULT SETTINGS with a single click and pressing “Enter.”...

  • Page 22: Parameter Change Record

    IX - PARAMETER CHANGE RECORD Parameter Original Date of Reason for Parameter Change New Value No. Changed Value Change...

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