Fig. 27 — economi$er iv wiring, Fig. 30 — return-air pressure drop, Fig. 31 — supply air sensor location – Bryant DURAPAC PLUS 581B User Manual

Page 17

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FOR OCCUPANCY CONTROL
REPLACE JUMPER WITH
FIELD-SUPPLIED TIME CLOCK

LEGEND

DCV— Demand Controlled Ventilation
IAQ — Indoor Air Quality
LA — Low Ambient Lockout Device
OAT — Outdoor-Air Temperature
POT — Potentiometer
RAT — Return-Air Temperature

Potentiometer Defaults Settings:
Power Exhaust

Middle

Minimum Pos.

Fully Closed

DCV Max.

Middle

DCV Set

Middle

Enthalpy

C Setting

NOTES:

1. 620 ohm, 1 watt 5% resistor should be removed only when using differential

enthalpy or dry bulb.

2. If a separate field-supplied 24 v transformer is used for the IAQ sensor power

supply, it cannot have the secondary of the transformer grounded.

3. For field-installed remote minimum position POT, remove black wire jumper

between P and P1 and set control minimum position POT. to the minimum
position.

Fig. 27 — EconoMi$er IV Wiring

1000

2000

3000

4000

5000

6000

0.05 0.10 0.15 0.20 0.25 0.30 0.35

STATIC PRESSURE (in. wg)

FLOW IN CUBIC FEET

PER MINUTE (cfm)

Fig. 30 — Return-Air Pressure Drop

500

1000

1500

2000

2500

0.05

0.15

0.25

STATIC PRESSURE (in. wg)

FLOW IN CUBIC FEET

PER MINUTE (cfm)

0.13 0.20 0.22 0.25 0.30 0.35 0.40 0.45 0.50

STATIC PRESSURE (in. wg)

FLOW IN CUBIC FEET

PER MINUTE (cfm)

Fig. 28 — Barometric Flow Capacity

Fig. 29 — Outdoor-Air Damper Leakage

SUPPLY AIR
TEMPERATURE
SENSOR
MOUNTING
LOCATION

SUPPLY AIR
TEMPERATURE
SENSOR

Fig. 31 — Supply Air Sensor Location