14
2. Swing out indoor coil access panel and insert the hood
sides under the panel (hood top). Use the screws provided
to attach the hood sides to the hood top. Use screws pro-
vided to attach the hood sides to the unit. See Fig. 17.
3. Remove the shipping tape holding the economizer baro-
metric relief damper in place (economizer only).
4. Insert the hood divider between the hood sides. See
Fig. 17 and 18. Secure hood divider with 2 screws on each
hood side. The hood divider is also used as the bottom fil-
ter rack for the aluminum filter.
5. Open the filter clips which are located underneath the
hood top. Insert the aluminum filter into the bottom filter
rack (hood divider). Push the filter into position past the
open filter clips. Close the filter clips to lock the filter into
6. Caulk the ends of the joint between the unit top panel and
the hood top.
7. Replace the filter access panel.
Fig. 16 — Indoor Coil Access Panel Relocation
Fig. 17 — Economizer Hood Construction
Fig. 18 — Economizer Filter Installation
Step 9 — Units with Hinged Panels Only
Relocate latch shipped inside the compressor compartment be-
hind the hinged compressor door to location shown in Fig. 19
after unit installation.
If the unit does not have hinged panels, skip this step and con-
tinue at Step 10 below.
Fig. 19 — Compressor Door Latch Location
Step 10 — Install External Condensate Trap and
Line
The unit has one
3
/
4
-in. condensate drain connection on the end
of the condensate pan and an alternate connection on the bot-
tom. See Fig. 20. Unit airflow configuration does not deter-
mine which drain connection to use. Either drain connection
can be used with vertical or horizontal applications.
When using the standard side drain connection, ensure that the
red plug in the alternate bottom connection is tight. Do this be-
fore setting the unit in place. The red drain pan plug can be
tightened with a
1
/
2
-in. square socket drive extension.
To use the alternate bottom drain connection, remove the red
drain plug from the bottom connection (use a
1
/
2
-in. square sock-
et drive extension) and install it in the side drain connection.
The piping for the condensate drain and external trap can be
completed after the unit is in place. See Fig. 21.
All units must have an external trap for condensate drainage.
Install a trap at least 4-in. (102 mm) deep and protect against
freeze-up. If drain line is installed downstream from the exter-
nal trap, pitch the line away from the unit at 1-in. per 10 ft
(25 mm per 3 m) of run. Do not use a pipe size smaller than the
unit connection (
3
/
4
-in.).
TOP
PANEL
INDOOR
COIL
ACCESS
PANEL
INDOOR
COIL
ACCESS
PANEL
CAULK
HERE
TOP
PANEL
B
TOP
PANEL
INDOOR COIL
ACCESS PANEL
19 1/16”
SCREW
HOOD DIVIDER
LEFT
HOOD
SIDE
33 3/8”
(848mm)
(483mm)
DIVIDER
BAROMETRIC
RELIEF
CLEANABLE
ALUMINUM
FILTER
FILTER
HOOD
FILTER
CLIP
OUTSIDE
AIR
COMPRESSOR
DOOR
OUTDOOR COIL
LATCH
Содержание Preferred 549J 04
Страница 4: ...4 Fig 2 549J 04 06 Units Built On and After 4 15 2019...
Страница 5: ...5 Fig 3 549J 04 06 Units Built Prior to 4 15 2019...
Страница 6: ...6 Fig 4 549J 04 06 Corner Weights and Clearances...
Страница 7: ...7 Fig 5 549J 04 06 Base Rail Details...
Страница 8: ...8 Fig 6 549J 04 06 Thru the Base Charts...
Страница 23: ...23 Fig 41 Electro Mechanical Control Wiring 208 230v 460v...
Страница 24: ...24 Fig 42 Electro Mechanical Control Wiring 575v...
Страница 25: ...25 Fig 43 Electro Mechanical Power Wiring 208 230 1 60...
Страница 26: ...26 Fig 44 Electro Mechanical Power Wiring 208 230 3 60...
Страница 27: ...27 Fig 45 Electro Mechanical Power Wiring 460 3 60...
Страница 28: ...28 Fig 46 Electro Mechanical Power Wiring 575 3 60...
Страница 29: ...29 Fig 47 RTU Open System Control Wiring...