WAT E R - S O U R C E H E AT P U M P S
JRC-Series
R e v. : D e c e m b e r 8 , 2 0 2 1
I n s t a l l a t i o n , O p e r a t i o n , M a i n t e n a n c e
8
Installation, Cont’d.
⚠
CAUTION!
⚠
CAUTION!
Loop Fluids should be of good quality with no
more than 0.50 ppm of chlorides w/copper heat exchangers
(125 ppm w/ Cupro-nickel) to prevent corrosion and should
also be filtered to a maximum 800 micron [0.8mm particle
size to prevent erosion of the heat exchangers.
Condensate Piping -
Unit is supplied with condensate
drain hose, 5/8 inch [16 mm] I.D. flexible plastic
nonpressure-rated, protruding from piping side of unit.
Connect this hose to building drain. Avoid making kinks
in hose to ensure an unobstructed flow of condensate
from the unit to the drain. DO NOT twist, pull hose out,
or push excess hose into unit. If hose will not connect to
your building drain several options include, relocate end
of building drain, add to or cut hose, use hard plastic or
copper elbow fittings for tight radii (put inside hose). Keep
hose positioned within or over subbase area so hose does
not interfere with front cabinet. Cabinet should not push or
reroute hose. Clamp all joints watertight. Check for leaks.
Internally the drain hose is clamped to drain pan and
pitched correctly. Horizontal runs of condensate hose
should be pitched downward 1/4 inch minimum for
every foot [10 mm per 46 cm] of hose. Avoid low points
because dirt collects in these areas and may cause
blockage. If blocked the condensate level in drain pan
increases. When the level gets too high, the Console unit
has sensor switch that will shut unit off. Overflow may
still occur.
If the building drain connection is parallel with floor, the
height can be up to 1-1/2 inches [38 mm] above the
subbase for proper pitch and correct drainage. Up to 5
inches [127 mm] above the subbase is allowable, but
drainage will be slower. When the drain connection
is 2-1/2 to 5 inches [64 to 127 mm] above, the hose
inside the unit will act as a trap. Heights of more than 5
inches [127 mm] above the subbase are NOT allowable
(condensate overflow may occur). If the unit has a
disconnect option, drain locations are limited. See unit
configuration pages for details.
Field installation of a trap or vent is not required unless
specified by local codes. Console units are designed in
a blow-through configuration. The condensate drain
pan is located on the outlet side of the blower so that
the pressure in the drain pan is higher than atmospheric
pressures.
When drain connection is completed check for proper
drainage and leaks. Correct if necessary.
If trap is used, check and clean often. See Preventive
Maintenance Instructions.
