46
Table 9 – Quantity of Heating Stages
MODELS
SIZES
3---PH
1---PH
48TCD, S
04---06
1
1
07
1
NA
08---09
1
NA
12---16
2
NA
48TCE, R
04
2
1
05---06
1
1
07
2
NA
08---16
1
NA
48TCF,T
04
NA
NA
05---06
2
1
07
2
NA
08---16
2
NA
48TCL, M
04---06
1
1
48TCN
04
NA
NA
05---06
1
1
LIMIT SWITCH
AND SHIELD
C12061
Fig. 56 -- SRT Limit Switch Location
Fuel Types and Pressures
Natural Gas —
The 48TC unit is factory--equipped for
use with Natural Gas fuel at elevation under 2000 ft (610
m). See section Orifice Replacement for information in
modifying this unit for installation at elevations above
2000 ft (610 m).
Gas line pressure entering the unit’s main gas valve must
be within specified ranges. Adjust unit gas regulator valve
as required or consult local gas utility.
Table 10 – Natural Gas Supply Line Pressure Ranges
MODEL
SIZES
MIN
MAX
48TC
04---14
4.0 in. wg
(996 Pa)
13.0 in. wg
(3240 Pa)
16
5.0 in. wg
(996 Pa)
13.0 in. wg
(3240 Pa)
Manifold pressure is factory--adjusted for NG fuel use.
Adjust as required to obtain best flame characteristic.
SIDE SHOT
LIMIT SWITCH
DOWN SHOT
LIMIT SWITCH
C12592
Fig. 57 -- Limit Switch Location
Table 11 – Natural Gas Manifold Pressure Ranges
UNIT
SIZES
LOW
FIRE+
HIGH
FIRE
RANGE
48TCD
48TCS
04---07
08---09
NA
3.5 in. wg
(872 Pa)
2.0---5.0 in. wg (Hi)
(498---1245 Pa)
12---14
2.0
(498 Pa)
3.5
(872 Pa)
16
2.0
(498 Pa)
3.0
(747 Pa)
48TCE
48TCR
04---07
1.7 +
(423 Pa)
3.5
(872 Pa)
2.0---5.0 in. wg (Hi)
(498---1245 Pa)
08---09
2.0
(498 Pa)
3.5
(872 Pa)
12---14
2.0
(498 Pa)
3.5
(872 Pa)
16
2.0
3.0
48TCF
48TCS
05---07
1.7
3.5
2.0---5.0 in. wg (Hi)
(498---1245 Pa)
08---14
2.0
3.5
16
2.0
3.0
48TCL
48TCM
48TCN
All
NA
3.5 in. wg
(872 Pa)
+:
Size 04 only
NA
: Not Available
Liquid Propane —
Accessory packages are available for
field--installation that will convert the 48TC unit (except
low NOx model) to operate with Liquid Propane (LP)
fuels. These kits include new orifice spuds, new springs
for gas valves and a supply line low pressure switch. See
section on Orifice Replacement for details on orifice size
selections.
Low NOx models include specially--sized orifices and use
of different flue flow limits and tube baffles. Because of
these extra features, conversion of these models to LP is
not recommended.
Fuel line pressure entering unit gas valve must remain
within specified range.
48TC
Summary of Contents for 48TC 04 Series
Page 27: ...27 COOLING CHARGING CHARTS cont C14064 Fig 33 Cooling Charging Charts 12 5 Ton 48TC...
Page 29: ...29 COOLING CHARGING CHARTS cont C13218 Fig 35 Charging Chart 48TC Size D16 48TC...
Page 40: ...40 C14052 Fig 51 Typical Smoke Detector System Wiring 48TC...
Page 122: ...122 APPENDIX III WIRING DIAGRAMS C12413 Fig 103 48TC A04 A07 Power Diagram 208 230 1 60 48TC...
Page 124: ...124 APPENDIX III WIRING DIAGRAM LIST C12415 Fig 105 48TC A04 A07 Power Diagram 575 3 60 48TC...
Page 126: ...126 APPENDIX III WIRING DIAGRAM LIST C13246 Fig 107 48TC A08 A12 Power Diagram 575 3 60 48TC...
Page 128: ...128 APPENDIX III WIRING DIAGRAM LIST C13247 Fig 109 48TC D08 D12 Power Diagram 575 3 60 48TC...
Page 130: ...130 APPENDIX III WIRING DIAGRAM LIST C13249 Fig 111 48TC D14 Power Diagram 575 3 60 48TC...
Page 139: ...139 APPENDIX III WIRING DIAGRAMS C12423 Fig 120 48TC D16 Power Diagram 575 3 60 48TC...
Page 143: ...143 APPENDIX III WIRING DIAGRAM LIST C13485 Fig 124 48TC 16 PremierLink Control Diagram 48TC...
Page 145: ...145 APPENDIX III WIRING DIAGRAM LIST C13487 Fig 126 48TC 16 RTU Open Control Diagram 48TC...
Page 146: ...146 APPENDIX III WIRING DIAGRAM LIST C14124 Fig 127 48TC D08 14 E08 14 W7220 2 Speed IFM 48TC...
