Bradford White Laars Linc MagnaTherm FT CFH1000 User manual

Installation and Operation Instructions Document 1462
H2407600-
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualied in hot boiler installation and maintenance. Improper installation and/or operation could create
carbon monoxide gas in ue gases which could cause serious injury, property damage, or death. Improper
installation and/or operation will void the warranty.
WARNING
If the information in this manual is not
followed exactly, a re or explosion may result
causing property damage, personal injury or
loss of life.
Do not store or use gasoline or other
ammable vapors and liquids in the vicinity of
this or any other unit.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any unit.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from a
nearby phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call
the re department.
Installation and service must be performed by
a qualied installer, service agency, or gas supplier.
AVERTISSEMENT
Assurez-vous de bien suivres les instructions
données dans cette notice pour réduire au
minimum le risque d’incendie ou d’explosion
ou pour éviter tout dommage matériel, toute
blessure ou la mort.
Ne pas entreposer ni utiliser d’essence ni d’autres
vapeurs ou liquides inammables dans le voisinage
de cet appareil ou de tout autre appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d’allumer d’appareils.
• Ne touchez à aucun interrupteur. Ne pas vous servir des
téléphones dansle bâtiment où vous êtes.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions du
fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service des incendies.
L’installation et l’entretien doivent être assurés par un
installateur ou un service d’entretien qualié ou par le
fournisseur de gaz.
Installation and Operation Instructions for
Boiler
Model CFH1000
999 MBTU/h
Model CFH1500
1,500 MBTU/h
Model CFH2000
1,999 MBTU/h
Model CFH3000
3,000 MBTU/h
FT
20:1 Turndown. Laars Linc®
MODULATING AND CONDENSING

LAARS Heating Systems
i
TABLE OF CONTENTS
SECTION 1 General Information
1.A Introduction ............................................... 5
1.B Model Identication .................................. 5
1.C Warranty .................................................... 5
1.D Safety Notes.............................................. 6
1.E Venting Dimensions & Sizing .................... 8
1.F Dimensions ............................................... 8
1.G Unit Overview .......................................... 10
1.H Gas Train Components ........................... 11
1.I Unpacking and the Install Kit................... 12
1.J Locating the Unit ..................................... 12
1.K Clearances .............................................. 13
SECTION 2 Venting and Combustion Air
2.A General Venting Information ................... 14
2.B Vent and Air Pipe Material ....................... 14
2.B.1 Venting Reqs Unique to Canada ............. 14
2.B.1.a Flue Gas Sampling Port - ........................ 14
2.B.1.b Exhaust Vent Terminal - .......................... 15
2.C Vent and Air Pipe Sizing .......................... 16
2.C.1 Category lV Vent Sizes ........................... 17
2.C.2 Category II Vent Sizes............................. 17
2.C.3 Common Venting..................................... 17
2.C.4 Common Vent Test .................................. 18
2.C.5 Combustion Air ........................................ 19
2.C.5.a Combustion Air From Room .................... 19
2.C.5.b Ducted Combustion Air ........................... 20
2.D Locating the Vent /Comb Air Terminals ... 20
2.D.1 Side-wall Vent Terminal ........................... 20
2.D.2 Side-wall Combustion Air Terminal .......... 22
2.D.3 Vertical Vent Terminal .............................. 22
2.D.4 Vertical Combustion Air Terminal ............ 22
2.E Outdoor Installation ................................. 23
2.F Installations in the Massachusetts .......... 23
SECTION 3 Gas supply and Piping
3.A Gas Supply and Piping............................ 24
3.B Gas Pipe Sizing....................................... 24
SECTION 4 Water Flow and Headloss Data
4.A General Water Flow Information ............. 25
4.B Water Flow & Headloss Data .................. 25
SECTION 5 Boiler Piping
5.A Water Connections .................................. 26
5.B Cold Water Make-Up ............................... 26
5.C Freeze Protection .................................... 26
5.D Suggested Boiler Piping Schematics . 27-34
5.E Water Heating ......................................... 34
SECTION 6 Condensate Drain Trap
6.A Condensate Trap Install Instructions ....... 37
SECTION 7 Electrical Connections
7.A Installation Warnings ............................... 38
7.B Main Power Connections ........................ 39
7.C Main Power Data..................................... 40
7.D Control Panel Layout............................... 40
7.E Field Connections .................................. 40
7.E.1 Power ...................................................... 40
7.E.2 Dry Contacts ........................................... 40
7.E.3 Temperature Sensors .............................. 41
7.E.4 Safety Chain............................................ 41
7.E.5 Isolation Valve ......................................... 42
7.E.6 Heat Demands ........................................ 42
7.E.7 Analog In and Analog Out ....................... 42
7.E.8 Dry Contacts. Run & Alarm ..................... 42
7.E.9 RS 485 for Cascade (Lead Lag) ............ 42
7.E.10 RS485 BMS ............................................ 43
7.F Modbus to BACnet Memory Map ............ 44
7.G Wiring Diagram ....................................... 48
7.H High Voltage Wiring Diagrams ...........50-53
7.I Ladder Diagrams................................54-61
SECTION 8 Control Operation
8.A The Home Screen.............................62
8.A.1 Home Screen Active Icons ...................... 62
8.A.2 Keypad Operations ................................. 63
8.B Login to Lock / Unlock the Screen .64
8.C Quick Start ......................................65
8.C.1 CH (Central Heat) ................................. 65
8.C.1.a CH1 (Central Heat, One) 1..................... 66
8.C.1.b CH2 (Central Heat, Two) 2 ..................... 66
8.C.2 DHW (Domestic Hot Water) .................. 66
8.C.3 Outdoor Reset ........................................ 67
8.C.4 Warm Weather Shut Down .................... 67
8.C.5 Anti-Short Cycle ..................................... 68
8.C.6 Time & Date ........................................... 68

FT
ii
Section 8 (continued)
8.D Conguration....................................69
8.D.1 CH (Central Heat) ................................. 69
8.D.1.a CH1 (Central Heat, One) ....................... 70
8.D.1.a.1 PID Low................................................... 71
8.D.1.a.2 PID High .................................................. 71
8.D.1.b CH2 (Central Heat, Two). ....................... 71
8.D.2 DHW (Domestic Hot Water) .................. 72
8.D.3 Outdoor Reset ........................................ 73
8.D.4 Cascade (All about Lead / Lag).............. 74
8.D.4.a Cascade Parameters ............................ 79
8.D.4.a.1 Base / Drop Load .................................... 80
8.D.4.b Rotation .................................................. 81
8.D.4.b.1 Rotation Setup ........................................ 81
8.D.4.c Redundancy ........................................... 82
8.D.5 Pumps .................................................... 83
8.D.5.a VARI-PRIME® ......................................... 84
8.D.6 Manual Firing Rate ................................. 85
8.D.7 Temp Limits ............................................ 85
8.D.7.a Delta T Parameters ................................. 86
8.D.7.b Flue Limitation Parameters ..................... 86
8.D.7.c Outlet Limitation Parameters................... 86
8.D.8 External .................................................. 87
8.D.8.a External – Remote Set Point ................... 88
8.D.8.b External Firing Rate ................................ 89
8.D.9 Time & Date ........................................... 89
8.D.10 Miscellaneous Features ....................... 90
8.D.10.a Demands Priorities ................................ 91
8.D.10.b Anti-Short Cycle ..................................... 91
8.D.10.c Warm Weather ..................................... 92
8.D.10.d COM Port, BMS ..................................... 93
8.D.10.e Temperature Conversion ........................ 94
8.D.10.f Anti-Frost ................................................ 94
8.D.10.g Trim (O2 Trim Enable / Disable) ............ 95
8.D.10.h Isolation Valve ......................................... 97
8.D.11 Login ...................................................... 97
8.E Service Screens................................98
8.E.1 Burner ..................................................... 98
8.E.2 Digital I/O ( Input / Output ) .................... 99
8.E.3 Analog I/O ............................................. 100
8.E.4 Screen Settings Timeout ....................... 100
8.E.5 History ................................................... 101
8.E.6 Restart Touchscreen & Recalibrate ....... 101
8.E.7 Factory Reset ........................................ 102
8.E.8 HMI Model OEM only ........................... 102
8.E.9 BIC Model OEM only............................ 102
8.E.10 Both Model. OEM only. ....................... 102
8.E.11 About About the Firmware ................... 102
8.E.12 O2 (Trim Set Point) .............................. 102
8.E.13 LMV ....................................................... 102
8.F Messages and USB........................103
8.F.1 Messages .............................................. 103
8.F.2 USB Functionality.................................. 103
8.G Active Demands .............................104
SECTION 9 Parameter Tables...............105
SECTION 10 Initial startup Instructions ................ 108
10.A Filling the Boiler System........................ 108
10.B Initial Operation ..................................... 109
10.B.1 Initial Burner Operation ......................... 109
10.B.2 Combustion Setup Procedure
Hi-Fire, Low-Fire ................................... 110
10.C Shutting Down the Unit ......................... 112
10.D Restarting the Unit ................................ 112
10.E Controllers ............................................. 112
10.F Pressure Transmitters ........................... 113
SECTION 11 Maintenance......................114
11.A System Maintenance ............................ 114
11.B Maintenance Notes ............................... 114
11.B.1 Burner ................................................... 114
11.B.2 Gas Train Components ....................... 114
11.B.3 Controller............................................... 115
11.B.4 Spark Ignition Electrodes ...................... 115
11.B.5 Flame Sensor ........................................ 115
11.B.6 Blower Model ........................................ 115
11.B.8 Heat Exchanger Tubes.......................... 116
11.B.9 Gas Pressure Switches ......................... 116
11.B.10 Pressure Transmitters ........................... 117
11.B.11 Oxygen Sensor ..................................... 117
11.B.12 High Temperature Limits (optional) ....... 117
SECTION 12 Troubleshooting ..............118
12.A Lockouts and Errors. ............................ 118
12.B LMV Errors. .......................................... 120
SECTION 13 Replacement Parts ..........124
13.A Frame and Jacket Assembly, ............... 125
13.B Control Panel Assembly, Part Numbers 126
13.C Blower and Burner Assembly,
Part Numbers. ALL Sizes ..................... 127
13.D AC Distribution Box Assemblies ............ 128
13.E Burner Door Part Numbers ................... 130
13.F Waterway Inlet Assy, Part Numbers ...... 131
13.G Waterway Outlet Assy, Part Numbers ... 132
13.H Gas Train Assembly .............................. 133

LAARS Heating Systems

Page 5
FT
This manual includes information which will help you
to install, operate, and maintain the Laars Heating
Systems MagnaTherm FT. Please read this manual
completely before proceeding with the installation.
If you have any questions regarding this equipment,
please contact Laars Heating Systems, or your local
Laars representative. Experience has shown that most
operating problems are caused by improper installation. LAARS Heating Systems MagnaTherm FT boilers
are covered by a limited warranty. The owner should
complete the warranty registration at
www.LAARS.com
ALL WARRANTY CLAIMS must be made by an
authorized LAARS Heating Systems representative.
Claims must include the serial number and model (this
information can be found on the rating plate). All claims
must also include the installation date and name of the
installer. Shipping costs are not included in the warranty
coverage.
SECTION 1 General Information
Rating Plate
1.A Introduction
1.B Model Identication
Primary information regarding your unit can be found
on the Rating Plate on the outside face of the
right-side panel.
1.C Warranty
ASME "H" stamp Electronic PID modulating control Sensor for indirect DHW tank
160 psi maximum working pressure with large touchscreen and Outdoor reset with air sensor
Certified for Category II and color display Horizontal or vertical direct vent
Category IV vent systems Multiple, independent heat demands Vent and air pipe lengths of up to
Indoor/outdoor VARI-PRIME boiler pump control 100 equivalent feet (each)
Low NOx system exceeds the via user-selectable fixed boiler High & low gas pressure switches
most stringent regulations for air temperature rise Vent temperature cutoff
quality Wired and programmed to control Normally open alarm contact
High condensing efficiency boiler isolation valves Air filter
Up to 20:1 turndown modulation Control cascades with up to Built-in condensate trap
Sophisticated gas/air valve eight MagnaTherm FT boilers Temperature & pressure gauge
allows for constant control Accepts 4-20ma or 0-10VDC Low water cutoff
of modulation external modulation or external Water flow switch
Tru Trac
TM
real-time O2sensing set point control 75 psi (517kPa) ASME rated
maintains efficiency throughout Modbus RTU & BACnet MSTP pressure relief valve
the modulation range on board Flange water fittings
Stainless steel firetube heat Multiple pump control for boiler Burner site glass
exchanger with welded construction pump, system pump, & indirect DHW Heat exchanger warranty:
Sealed combustion chamber water pump, each with delay 10-Year limited non-prorated
Pre-mix stainless steel burner Indirect water heater priority 25-year limited thermal shock
1-Year limited parts warranty
123 4567 8 9 10 11 12 13
CFH 1
1000
1500
2000
3000
X- 75psi PRV, std
A- 30psi PRV
B- 50psi PRV X- None E- Gateway BACnet IP H- Gateway LONworks
C- 60psi PRV A- Gateway, BACnet IP & alarm bell & alarm bell
E- 125psi PRV B- Gateway, LONworks F- Gateway BACnet IP J- Gateway LONworks
F- 150psi PRV C- Alarm bell & high limits & high limits
D- Auto/manual high limits G- Gateway BACnet IP K- Gateway LONworks
(Additional) & alarm bell & alarm bell
& high limits & high limits
L- Alarm & high limits
Model Model
CFH1000 N G (A,B,F) 1 X X CFH1000 N H (A,B,F) 1 X X
CFH1500 N G (A,B,F) 1 X X CFH1500 N H (A,B,F) 1 X X
CFH2000 N G (A,B,C,D,E,F) 1 X X CFH2000 N H (A,B,C,D,E,F) 1 X X
CFH3000 N G (C,D,E) 1 X X CFH3000 N H (C,D,E) 1 X X
E- 600V, three ph (2000-3000)
D- 480V, three ph (2000-3000)
C- 208V, three ph (2000-3000)
B- 220/240V, single ph (1000-2000)
$54,560 $54,894
$62,500 $62,834
$89,440 $89,774
Waterway Options
Additional Options
List Pricing
Standard CSD-1
List Price List Price
$44,500 $44,834
1- First
F- 208V, single ph (1000-2000)
MagnaTherm FT
Model CFH - Commercial Fire Tube Condensing Boiler with Laars Linc Control
Standard Features
H- CSD-1
Model Nomenclature
Series Size / MBH Fuel Construction Electrical System Revision
CFH- Commercial Fire Tube N- Nat G- Standard A- 120V, single ph (1000-2000)