Instructions / Assembly
Table Of Contents
- Part 1 - General Safety Information
- Part 2 - Before You Start
- Part 3 - Prepare the Boiler
- A. Locating the Boiler
- B. Structure
- C. Leveling
- D. Clearances for Service Access
- E. Wall Mounting Considerations
- F. Wall Mounting Instructions
- G. Residential Garage and Closet Installations
- H. Exhaust Vent and Intake Pipe
- I. Carbon Monoxide Detectors
- J. Prevent Combustion Air Contamination
- K. Removing a Boiler from a Common Vent System
- K. Water Chemistry Requirements*
- L. Technical Specifications
- Part 4 - Piping
- A. General Plumbing Information
- B. Relief Valve
- C. Backflow Preventer
- D. Potable Expansion Tank
- E. Circulators
- F. Hydronic Piping with Circulators, Zone Valves, and Multiple Boilers
- G. Circulator Sizing
- H. Check / Control Water Chemistry
- I. Plumbing
- J. Fill and Purge Heating System
- K. Glycol Antifreeze Solutions
- L. Zoning with Zone Valves
- M. Zoning with Circulators
- N. Multiple Boilers
- O. Applications*
- Part 5 - Venting
- Part 6 - Condensate Removal
- Part 7 - Wiring
- A. Installation Must Comply With
- B. Field Wiring Terminations
- C. Field Wiring
- D. Line Voltage Wiring for Standard Boiler
- E. Alarm Connections
- F. Low Voltage Connections for Standard Boiler
- G. Thermostat
- H. Outdoor Sensor
- I. Indirect Sensor
- J. Optional 0-10 Volt Building Control Signal
- K. Optional UL353 Low Water Cut-Off Interface Kit
- L. Wiring of Cascade System Communication Bus
- M. Cascade Master Pump and Sensor Wiring
- N. Cascade Follower Pump and Sensor Wiring
- Part 8 - Gas Connections
- Part 9 - Start-Up Preparation
- A. Check / Control Water Chemistry
- B. Check for Gas Leaks
- C. Freeze Protection (When Used)
- D. Fill and Test Water System
- E. Purge Air from Water System
- F. Check Thermostat Circuit(s)
- G. Condensate Removal
- H. Final Checks Before Starting Boiler
- I. Setting Up a Single Boiler
- J. Setting Up a Cascaded System
- K. Lockout Condition
- L. Cascade System Programming
- Part 10 - Start-Up Procedure
- Part 11 - Start-Up Procedures for the Installer
- Part 12 - Troubleshooting
- Part 13 - Maintenance
- Part 14 - Shutdown
- Part 15 - Installation Checklist
- Part 16 - Maintenance Report
- Part 17 - Replacement Parts

LP-387 Rev. 011 Rel. 006 Date 6.28.19
54
0-10 V 0.0V
BOILER
The top line displays the voltage on
the optional input. This voltage is only
relevant if an external 0-10 volt signal
is being used to control the boiler.
Press v once.
BUS COMM NO CONN
This display shows the status of
the communication bus between
multiple boilers. If in a single boiler
conguration, the display will show
‘NO CONN’. In a multiple boiler
conguration, if this is the Master Boiler
and other boilers are connected to the
communication bus and powered, this
screen will show the address of each
boiler connected to the bus.
Press v once.
POWER ON 0H
CH ON 0H
The top line indicates the amount of
hours the boiler has been powered
over its life. The second line indicates
how many hours the burner has been
on for central heat demand over its life.
Press v once.
DHW ON 0H
GOOD IGNIT 1X
The top line indicates the hours the
burner has been on for hot water
demand over the boiler’s life. The
second line indicates how many times
the burner has successfully ignited
over the boiler’s life.
Press v once.
SYS CH ON 0H
SYS DHW ON 0H
This screen displays how many hours
the boiler has run to meet central heat
and DHW demand.
Table 24 - Boiler Control Status Menu Screens
The next ten screens display the last ten boiler lockout faults. Press v to
scroll through the faults from most recent to oldest.
Screen Description
FAULT HISTORY 1
07/27/2009 Mo
5:19A
This screen displays the most recent
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the fault code
encountered. The bottom line displays
the date and time the fault occurred.
Press v once.
FAULT HISTORY 2
08/28/2009 Fr 5:19A
This screen displays the second oldest
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the actual fault
encountered. The bottom line will
display the date and time that the fault
occurred.
Press v once.
FAULT HISTORY 3
08/28/2009 Fr 5:19A
This screen displays the third oldest
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the actual fault
encountered. The bottom line will
display the date and time that the fault
occurred.
Press v once.
FAULT HISTORY 4
08/28/2009 Fr 5:19A
This screen displays the fourth oldest
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the actual fault
encountered. The bottom line will
display the date and time that the fault
occurred.
Press v once.
FAULT HISTORY 5
08/28/2009 Fr 5:19A
This screen displays the fth oldest
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the actual fault
encountered. The bottom line will
display the date and time that the fault
occurred.
Press v once.
FAULT HISTORY 6
08/28/2009 Fr 5:19A
This screen displays the sixth oldest
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the actual fault
encountered. The bottom line will
display the date and time that the fault
occurred.
Press v once.
FAULT HISTORY 7
08/28/2009 Fr 5:19A
This screen displays the seventh oldest
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the actual fault
encountered. The bottom line will
display the date and time that the fault
occurred.
Press v once.
FAULT HISTORY 8
08/28/2009 Fr 5:19A
This screen displays the eighth oldest
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the actual fault
encountered. The bottom line will
display the date and time that the fault
occurred.
Press v once.
FAULT HISTORY 9
08/28/2009 Fr 5:19A
This screen displays the ninth oldest
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the actual fault
encountered. The bottom line will
display the date and time that the fault
occurred.
FAULT HISTORY 10
08/28/2009 Fr 5:19A
This screen displays the tenth oldest
boiler control lockout fault. The top
line will alternate between the words
‘FAULT HISTORY’ and the actual fault
encountered. The bottom line will
display the date and time that the fault
occurred.
Table 25 - Boiler Fault Screens










