HELIX VX-050, Installation, Operation & Maintenance Manual

Page: 35 / 88

35
9.1 Fill Boiler With Water And Purge Air
NOTICE
To maintain boiler efficiency and prevent boiling
inside the heat exchanger, flush entire heating
system until clean.
• Flush heating system, including all heating zones.
• Fill boiler with potable water.
• Fill boiler and system piping with water (or
antifreeze-water solution, if used). See antifreeze
information page 13. Purge air from boiler using
safety relief valve. Purge air from system piping.
• Inspect system piping and boiler connections. Repair
any leaks immediately.
• Activate all heating zones and calls for heat,
including CH calls and DHW calls (if available).
• Close manual gas shut off valve. Let system run for
30 minutes. When boiler goes into lockout, reset
boiler by pressing "Reset" button until boiler resets.
• Do not open gas shutoff valve until all air is purged
from system.
9.2 Fill Condensate Trap with Water
• Remove spring tension clip from clear hose attached
to barbed fitting at bottom of boiler chassis. See
figure 9-1.
• Disconnect hose from barbed fitting.
• Remove barbed fitting from boiler.
• Attach supplied condensate trap to barbed fitting
using pipe tape.
• Fill trap through fitting with approximately 2 cup
(473 ml) water.
• Place barbed fitting back through bottom of chassis.
• Reassemble clear tube to barbed fitting.
• Secure tube to barbed fittting with spring tension clip.
See figure 9-1.
FIGURE 9-1 Condensate Drain Assembly
NOTICE
IMPORTANT: Condensate trap must be manually
filled with water at initial start up.
9 - START UP PROCEDURE
Condensate
Collector
Remove Spring
Tension Clip
Remove Hose
Barb
Attach Supplied
Condensate Trap
to Hose Barb
Secure Hose onto
Hose Barb with
Spring Tension
Clip