CONTROLWIRING
COOLINGONLY(24VOLTTHERMOSTAT)
UNITTERMINAL
BLOCK1TB2
COOLING/HEATING(24VOLTTHERMOSTAT)
UNITTERMINAL
BLOCK1TB2
THERMOSTAT1 | R |
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TERMINALS |
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R | W1 | ADD | Y1 |
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Y1 | G | Y2 |
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Y2 | B |
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X | 24VOLT |
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G | A1 | A1 | TRANSFORMER | ||||
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124VoltThermostat2TH04701224or2TH04701524 |
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(withSubbase2TB04700224). |
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124VoltThermostat2TH04701024or2TH04701524 | |||||||||||||||||
oftheunitcontrolbox. |
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| COOLINGONLY(24VOLTTHERMOSTAT) | oftheunitcontrolbox. |
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| 3Secondstageheatingisnotrequiredonunitswithasinglestage | ||||||||||||||||
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| electricheater. |
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ADD | Y2 |
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| LINEVOLTAGE | L1 | Refertothe | ||||
JUMPER | W1 |
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| ELECTRICALDATA | |||
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| BLOCK2TB | L3 |
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| powerwiring,the | ||||||||||
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| INCONTROLBOX |
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| disconnectswitch. |
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| X | 24VOLT | GROUNDLUG |
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| LED2 NOTUSED | 4 |
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| COM |
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ADD | A1 |
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JUMPER | A2 |
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TOREMOTESENSOR
2TH04702224IFUSED
1Electronicprogrammablethermostat2ET04700224(includessubbase).
3Secondstageheatingisnotrequiredonunitswithasinglestageelectricheater.
4TerminalsA1andA2providearelayoutputtoclosetheoutdooreconomizerdampers
FIGURE 5 : TYPICAL FIELD WIRING
TABLE 4: GAS HEAT APPLICATION DATA1
| Input Capacity (Mbh) |
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| Gas Rate2 | |||
0 to 2000 Feet | 2,000 to 4,500 Feet | 0 to 2000 Feet | 2,000 to 4,500 Feet | Available on | At Full Input | 3 | ||||
Above Sea Level4 | Above Sea Level | Above Sea Level4 | Above Sea Level | Models | (Ft.3/Hr.) |
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Min. | Max. | Min. | Max. | Min. | Max. |
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300 | 150 | 270 | 135 | 240 | 213 | 15 & 20 Ton | 279 | 20 | 50 |
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400 | 200 | 360 | 180 | 320 | 281 | 15 & 20 Ton | 372 | 30 | 60 |
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1Heaters are shipped available fro natural gas, but can be converted to L.P./Propane with Kit Model No. 1NP0418. 2Based on maximum input and 1075/Btu/Ft.3
3The air flow must be adjusted to obtain a temperature rise within the range shown.
4MBH rating should be reduced at the rate of 4 percent for each 1,000 feet above 4,500 feet.
Unitary Products | 9 |
