12
Installation, Operation & Maintenance - HKV Series
Condensate Piping
- HKV - Remove KO on side that
drain will be connected. Remove access panels. Inside
of unit, untie and uncoil drain hose. Form trap in hose,
make sure hose is not kinked or deformed. Connect plate
assembly to side frame with 2 screws.
Outside of unit, connect 1” MPT fitting to plate assembly.
Run line to building drain. Horizontal runs must be
pitched ¼” per foot (10 mm per 46 cm) toward drain. Do
not trap externally.
Figure 4 illustrates a typical trap and vent used with HKV
series equipment.
Each unit must be installed with its own individual line to
the building main condensate drain line or riser. Provide
a means to flush or blow out the condensate line. DO
NOT install units with a common trap and or vent. Always
vent the condensate line when dirt or air can collect in
the line or a long horizontal drain line is required. Also
vent when large units are working against higher external
static pressure than other units connected to the same
condensate main since this may cause poor drainage
for all units on the line. WHEN A VENT IS INSTALLED IN
THE DRAIN LINE, IT MUST BE LOCATED AFTER THE
TRAP IN THE DIRECTION OF THE CONDENSATE FLOW
and opening 46” (117 cm) minimum from bottom of unit.
(Vent per code)
*IPT
Trap Depth >1.5” [38mm]
Min 1.5”
[38mm]
1/4” per foot
[21mm per m] drain slope
PVC or
Copper by others
See size in table
Rev.: 10/11/04D
Vent (below top of
drain line)
Pipe
Connected Connected
Size
Tons
kW
3/4” [19mm]
<4
<14
1” [25mm]
<6
<21
1-1/4” [32mm]
<30
<105
1-1/2” [38mm]
<50
<175
2” [51mm]
<150
<527
3” [76mm]
<300
<1055
4” [102mm]
<500
<1758
* Make sure all connections are secure and
water tight.
�
WARNING!
�
WARNING!
Ensure condensate line is pitched toward drain
1/4" per foot [10mm per 46cm] of run.
Condensate Installation
All fittings and tubing outside of the unit are field supplied.
Condensate
Pan
1” IPT
2 Screws
Open
Vent
1” EPT
Fitting
46” Min
To Bottom
Of Unit
To main
drain, pitch
¼” Per foot
Figure 4: HKV
Drain main or riser must be sized for all units connected
to it.
After drain is connected to main and all drain
connections are secure and water tight, pour 1 gallon of
water into condensate pan. Water should drain out freely.
Repair any leaks.