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11
1. The indoor coil access panel will be used as the top of
the hood. Remove the screws along the sides and bot-
tom of the indoor coil access panel. See Fig. 10.
Fig. 10 — Indoor Coil Access Panel Relocation
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. 11.
Fig. 11 — Economizer Hood Construction
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. 11 and 12. Secure hood divider with 2 screws on
each hood side. The hood divider is also used as the bot-
tom filter 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. 12 — Economizer Filter Installation
Step 9 — Install Flue Hood —
Flue hood is shipped
screwed to the basepan beside the burner compartment access
panel. Remove from shipping location and using screws pro-
vided, install flue hood and screen in location shown in Fig. 13.
Fig. 13 — Flue Hood Details
Step 10 — Install Gas Piping —
Installation of the
gas piping must be accordance with local building codes and
with applicable national codes. In U.S.A., refer to NFPA 54/
ANSI Z223.1 National Fuel Gas Code (NFGC). In Canada, in-
stallation must be accordance with the CAN/CSA B149.1 and
CAN/CSA B149.2 installation codes for gas burning applianc-
es. This unit is factory equipped for use with Natural Gas fuel
at elevations up to 2000 ft (610 m) above sea level. Unit may
be field converted for operation at elevations above 2000 ft
(610 m) and/or for use with liquefied petroleum fuel. See ac-
cessory kit installation instructions regarding these accessories.
NOTE: Furnace gas input rate on rating plate is for installa-
tion up to 2000 ft (610 m) above sea level. In U.S.A. the
input rating for altitudes above 2000 ft (610 m) must be der-
ated by 4% for each 1000 ft (305 m) above sea level. In
Canada the input rating must be derated by 10% for alti-
tudes of 2000 ft (610 m) to 4500 ft (1372 m) above sea
level.
For natural gas applications, gas pressure at unit gas con-
nection must not be less than 4 in. wg (996 Pa) or greater than
13 in. wg (3240 Pa) while the unit is operating, see Table 3. For
liquefied petroleum applications, the gas pressure must not be
less than 11 in. wg (2740 Pa) or greater than 13.0 in. wg
(3240 Pa) at the unit connection, see Table 4.
TOP
PANEL
INDOOR
COIL
ACCE
SS
PANEL
INDOOR
COIL
ACCE
SS
PANEL
CAULK
HERE
TOP
PANEL
B
TOP
PANEL
INDOOR COIL
ACCE
SS
PANEL
19 1/16
”
S
CREW
HOOD DIVIDER
LEFT
HOOD
S
IDE
33 3
/
8”
(
8
4
8
mm)
(4
83
mm)
DIVIDER
BAROMETRIC
RELIEF
CLEANABLE
ALUMINUM
FILTER
FILTER
HOOD
FILTER
CLIP
OUT
S
IDE
AIR
BLOWER
ACCE
SS
PANEL
Summary of Contents for WeatherMaker 48TC 04
Page 4: ...4 Fig 2 Unit Dimensional Drawing ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing cont ...
Page 21: ...21 Fig 34 48TC B07 Unit with Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Page 39: ...39 Fig 45 PremierLink Wiring Schematic ...
Page 40: ...40 Fig 46 PremierLink Wiring Schematic with Humidi MiZer System ...
Page 48: ...48 Fig 65 Typical RTU Open System Control Wiring Diagram ...
Page 49: ...49 Fig 66 Typical RTU Open System Control Wiring Diagram with Humidi MiZer System ...