LP-293 Rev. 9.24.15
5
N. Multiple Boilers 19
O. Applications* 20
Part 5 - Venting and Condensate Removal 24
A. General 24
B. Approved Materials for Exhaust Vent and Intake Pipe 25
C. Additional Requirements for Installation in Canada 25
D. Exhaust Vent and Intake Pipe Location 26
E. Exhaust Vent and Intake Pipe Sizing 27
F. Longer Vent Runs 27
G. Exhaust Vent and Intake Pipe Installation 27
H. Applications 28
1. Direct Vent Installation of Exhaust and Intake 28
2. Venting Through an Existing System 30
3. Indoor Combustion Air in Conned or Unconned Space
31
I. Condensate Removal System 32
Part 6 - Wiring 33
A. Installation Must Comply With 33
B. Field Wiring Terminations 33
C. Field Wiring 33
D. Line Voltage Wiring for Standard Boiler 33
E. Alarm Connections 34
F. Low Voltage Connections for Standard Boiler 34
G. Thermostat 34
H. Outdoor Sensor 34
I. Indirect Sensor 34
J. Optional 0-10 Volt Building Control Signal 35
K. Optional UL353 Low Water Cut-O Interface Kit 35
L. Wiring of Cascade System Communication Bus 35
M. Cascade Master Pump and Sensor Wiring 36
N. Cascade Follower Pump and Sensor Wiring 36
Part 7 - Gas Connections 40
A. Gas Piping 40
B. Check Inlet Gas Pressure 41
C. Boiler Gas Valve 42
Part 8 - Start-Up Preparation 42
A. Check / Control Water Chemistry 42
B. Check for Gas Leaks 43
C. Freeze Protection (When Used) 43
D. Fill and Test Water System 43
E. Purge Air from Water System 43
F. Check Thermostat Circuit(s) 44
G. Condensate Removal 44
H. Final Checks Before Starting Boiler 44
I. Setting Up a Single Boiler 44
J. Setting Up a Cascaded System 45
K. Lockout Condition 45
L. Cascade System Programming 45
Part 9 - Start-Up Procedure 46
A. Control Overview 46
B. Navigation of the Display 46
C. Operating Instructions 46
D. Programming Boiler Settings 47
E. Programming the System Setting 47
F. System Setting Program Navigation 47
G. Resetting the Maintenance Schedule 49
Part 10 - Start-Up Procedures for the Installer 50
A. Boiler Control Status Menu 50
B. Cascade Menu 52
C. Boiler Test Mode 53
Part 11 - Troubleshooting 53
A. Boiler Error and Fault Codes 53
B. Boiler Error 53
C. Boiler Fault 53
D. User Interface Display 54
Part 12 - Maintenance 58
A. Procedures 58
B. Combustion Chamber Coil Cleaning Instructions 59
C. Cleaning Water Side of Heat Exchanger 60
D. Maintaining the Condensate System 60
Part 13 - Installation Checklist 66
Part 14 - Maintenance Report 66
Limited Warranty 70
Maintenance Notes 72
Customer Installation Record Form 73
Part 1 - General Safety Information
This boiler is approved for indoor installations only and is not
intended for use as a pool heater. Clearance to combustible
materials: 0” top, bottom, sides, and back. Left side has all
boiler mechanical connections. Boiler must have room for
service: 24” front is minimum recommended service clearance.
(A combustible door or removable panel is acceptable front
clearance.) This boiler has been approved for closet installation
and installation on combustible ooring. Do not install directly on
carpeting. Install the boiler in a location where temperature and
pressure relief valve discharge or a leak will not result in damage
to the surrounding area. If such a location is not available, install
an auxiliary catch pan. Use only Category IV vent systems.
Installer - Read all instructions in this manual before installing.
Perform steps in the given order.
User - This manual is for use only by a qualied heating installer /
service technician. Have this boiler serviced / inspected annually
by a qualied service technician.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE
CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE,
SEVERE PERSONAL INJURY, OR DEATH.
NOTE: If the boiler is exposed to the following, do not operate.
Immediately call a qualied service technician.
1. Fire
2. Damage
3. Water
Failure to follow this information could result in property
damage, severe personal injury, or death.
DO NOT USE THIS BOILER IF ANY PART HAS BEEN
SUBMERGED IN WATER. Immediately call a qualied
service technician. The boiler MUST BE replaced if it has been
submerged. Attempting to operate a boiler that has been
submerged could create numerous harmful conditions, such as
a potential gas leakage causing a re and/or explosion, or the
release of mold, bacteria, or other harmful particulates into
the air. Operating a previously submerged boiler could result in
property damage, severe personal injury, or death.
NOTE: Boiler damage due to ood or submersion is considered
an Act of God, and IS NOT covered under product warranty.
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