FOR OCCUPANCY CONTROL
REPLACE JUMPER WITH
50HE,HJ
LEGEND | Potentiometer Defaults Settings: | NOTES: | |||
DCV— Demand Controlled Ventilation | Power Exhaust | Middle | 1. | 620 ohm, 1 watt 5% resistor should be removed only when using differential | |
Minimum Pos. | Fully Closed |
| enthalpy or dry bulb. | ||
IAQ — Indoor Air Quality |
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DCV Max. | Middle | 2. | If a separate | ||
LA — Low Ambient Lockout Device | |||||
OAT — | DCV Set | Middle |
| supply, it cannot have the secondary of the transformer grounded. | |
POT — Potentiometer | Enthalpy | C Setting | 3. | For | |
RAT — |
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| between P and P1 and set control minimum position POT to the minimum | |
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| position. |
C06028
Fig. 34 --- EconoMi$er IV Wiring
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| BLACK | 4 |
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| 3 |
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| 5 |
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| BLUE | 2 |
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| 500 OHM |
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| 8 |
| RESISTOR |
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| VIOLET |
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| 6 |
NOTE 1 |
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| PINK |
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| 7 | |
| RUN |
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| - |
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| RED | 1 |
NOTE 3 |
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| + |
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| 10 |
50HJ540573 |
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SENSOR 4 - 20 mA |
| YELLOW |
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ACTUATOR |
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| 11 | ||
ASSEMBLY | OPTIONAL CO2 |
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| OUTPUT |
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| 9 |
| DIRECT DRIVE |
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| WHITE | 12 |
| ACTUATOR |
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ECONOMISER2 PLUG
NOTES:
1.Switch on actuator must be in run position for economizer to operate.
2.PremierLink™ control requires that the standard 50HJ540569
3.50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with
C06029
Fig. 35 --- EconoMi$er2 with 4 to 20 mA Control Wiring
Outdoor Enthalpy Changeover
For enthalpy control, accessory enthalpy sensor (part number HH57AC078) is required. Replace the standard outdoor dry bulb temperature sensor with the accessory enthalpy sensor in the same mounting location. (See Fig. 27.) When the outdoor air enthalpy rises above the outdoor enthalpy changeover set point, the
enthalpy changeover set point is set with the outdoor enthalpy set point potentiometer on the EconoMi$er IV controller. The set points are A, B, C, and D. (See Fig. 43.) The
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