6. INSTALL THE UNIT
(CONT’D)
- 24 -
6.10
C
ONNECTING THE
D
RAIN
(GSHH3K M
ODEL ONLY
)
VO0025
1
VO0046
1
2
3
1
. Open the door by turning the switch
knob to the OFF position (to unlock
the door). Then, unlatch the door
and open it. Slide out the core
assembly to access the 2 drain fitting
hole locations (
1
). Punch out the
holes.
2.
Hand tighten the 2 plastic drain
fittings (
1
) using the gaskets (
2
) and
nuts (
3
) as shown. Close the door.
1
2
VO0027
27''
(6
8
6 mm)
7''
(17
8
mm)
3.
Cut 2 sections of plastic tubing; one
7’’ (178 mm) long and one 27’’ (686 mm)
long, and attach them to each drain
fitting as shown.
3
VO002
8
4.
Join these 2 sections to the ‘’T’’
junction and main tube as shown.
VO0029
4
5
Tie-wrap
Water
To drain
5
. Make a water trap loop in the tube to
prevent the unit from drawing
unpleasant odors from the drain
source. Make sure this loop is situated
BELOW the ‘’T’’ as shown. This will
prevent water from being drawn back
up into the unit in case of negative
pressure. Run the tube to the floor
drain or an alternative drain pipe or
pail. Be sure there is a slight slope
for the run-off.
6.11
L
OW
T
EMPERATURE
A
PPLICATIONS
B
ELOW
F
REEZING
(32°F
OR
0°C)
A
LL
M
ODELS
F
OR
GSHH3K H
EAT
R
ECOVERY
AND
GSEH3K E
NERGY
R
ECOVERY
M
ODELS
ONLY
G
ENERAL
:
• Insulate the cabinet body using a 2” thick blanket insulation or by placing the unit in an insulated enclosure formed from 2” thick
fiberglass insulation board.
• Make sure that all ductwork is insulated.
• Carefully seal all of the unit ports with duct tape to prevent air leakage.
• Install a heating cable along the drain line for freeze protection.
-
Use a UL listed heat tape in accordance to the manufacturer’s instruction.
-
Because of the additional weight of the heating tape on drain line, secure the plastic tubing to each drain fitting using hose clamps
(not provided).
-
Make sure the heat tape is rated between 3 to 6 watts per foot at 120 V.
-
Protect the circuit the heat tape is connected to with a ground-fault circuit breaker.
-
Cover the drain line and heating cable with 1/2 inch thick insulation.
-
If you need to extend the drain line beyond the 9 foot length supplied with the unit, use copper pipe.
CAUTION
When the ambient temperature surrounding the unit falls below freezing (32°F or 0°C), all units must run continuously to
prevent condensation.
CAUTION
• When installing an GSHH3K HEPA Filtration, Fresh Air and Heat Recovery model, make sure the unit cabinet and its drain
line are protected from freezing.
• When installing an GSHH3K HEPA Filtration, Fresh Air and Heat Recovery model, install a drip pan if required by local code.
