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
63
C. Cleaning Water Side of Heat Exchanger
1. Make sure power is
turned o to the boiler.
Run water through the hot
water system to ensure it is
below room temperature.
2. Close isolation valves
on the return and supply
connections to the boilers
as shown in the piping
diagrams in this manual.
Slowly open the ball valves
and release pressure into a
bucket. Once pressure is
released, connect a hose
to the water line to ush
the boiler. Scale removing
solution may be used, but
must be approved for use
with stainless steel and
FDA approved for use in a
potable water system.
3. Thoroughly ush the
heat exchanger before
commissioning the unit
back in service.
D. Maintaining the Condensate System
When servicing is complete, make sure the condensate collector
cap is replaced securely. Failure to do so will cause venting issues
that will result in serious injury or death.
The condensate trap assembly MUST BE PROPERLY INSTALLED
according to these instructions when operating the boiler.
Operating the boiler without the condensate trap assembly will
cause ue gases to leak and result in serious personal injury or
death.
1. Ensure the boiler is powered o and has had time to cool.
2. Remove the stainless steel lock pin to release the condensate trap.
Remove the clear plastic hose from the hose barb. Remove the trap
from the drain tube.
3. Remove the bottom cap from the condensate trap.
4. Flush trap with fresh water to remove debris from the trap.
NOTE: Ensure the oat moves freely within the trap. If the oat does
not move, DO NOT reinstall the trap.
5. When the condensate trap is suciently clean, reinstall the
bottom cap on the trap.
NOTE: Ensure all parts shown in Figure 36, Condensate Detail, are
installed with the condensate trap. If any parts are missing, DO NOT
reinstall the trap. Replace the entire assembly.
Do not install the condensate assembly if a component is lost or
missing. Replace the entire assembly. Failure to follow this warning
could result in property damage, serious personal injury, or death.
Figure 36 - Condensate Detail
6. Fill the condensate trap with fresh water prior to reassembly on
the boiler.
7. Slide the condensate trap adapter onto the drain tube until the
holes line up with the groove.
8. Insert the stainless steel hitch pin to lock the condensate adapter
to the drain tube.
9. Reattach the clear plastic hose to the hose barb.