Piping Insulation; Condensate Drain - IEC Vertical F*C Series Installation, Operation & Maintenance Manual

IEC Vertical F*C Series Fan Coils
INSTALLATION, OPERATION, & MAINTENANCE MANUAL
Torch
Field
Tubing
(Factory Installed)
Figure 4: Field Piping Connections:
CAUTION: Piping must be adequately
supported or equipment damage could result.
NOTE: The installing contractor is responsible for adequately
supporting field mounted or field supplied valve packages
or components. Once installed the valve package
components must not impede or block condensate run off
path from the drain trough to the drain pan.
NOTE: Copper connections should only be made with commonly
available solder that melts (flows) below 500°F. Excessive
overheating of connections may damage IEC equipment,
valves, pipe integrity, etc.
Steam Drain Connections
Verify units with steam-heating coils have the proper line
sizing and routing, and the maximum steam pressures
applied never exceed 10 psig. The drain piping and
steam trap are to be sized and routed to allow for proper
condensate flow.
Leak Testing
After completing the connections, test the system for any
leaks. Always test hydronic systems with water as some
components are not designed to be inert gas pressurized.
Field pressure testing for leaks should not exceed 300 psi
for hydronic coil and valve package components. Consult
factory if higher limits are required.
CAUTION: Protect all water coils from freezing
after initial filling with water. Even if the
system is drained, unit coils may still hold enough water
International Environmental Corporation • Vertical F*C Series Fan Coil Installation, Operation, & Maintenance Manual
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Supply
or
Return
Stub
From Coil
Wet Rag
Adaptor
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to cause damage when exposed to temperatures below
freezing.
Refrigerant Coil Testing
Test refrigerant systems with dry nitrogen rather than air to
prevent the introduction of moisture into the system. In the
event that leaking or defective components are discovered,
notify the Sales Representative BEFORE any repairs are
attempted. All leaks must be repaired before proceeding
with the installation.

Piping Insulation

After system integrity has been established, insulate the
piping in accordance with the project specifications. This is
the responsibility of the installing or insulation contractor.
All chilled water piping and valves or refrigerant suction
piping not located over drain pans or drip lips must be
insulated to prevent damage from sweating. This includes
factory and field piping inside the unit cabinet.

Condensate Drain

The condensate drain shall always be connected and piped
to an acceptable disposal point. For proper moisture carry
off, the drain piping shall be sloped away from the unit at
least 1/8" per foot. A drain trap may be required by local
codes and it is strongly recommended for odor containment.
A minimum drain P-Trap of 2" is required to be connected
to the primary drain outlet of the condensate pan. This
connection must be serviceable during preventative
maintenance. See Figure 5 below.
Drain Pan trim "P" trap as required
to prevent kinking.
Drain
Clamp
2" Minimum
"P" Trap
Figure 5: "P" Trap Minimum Configuration
Unit Wall
Note: Field
Drain
Clamp