Bryant DURAPAC PLUS 551B User Manual

Page 15

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TOP
PANEL

INDOOR COIL
ACCESS PANEL

24 9/16”

SCREW

HOOD DIVIDER

LEFT
HOOD
SIDE

40 3/8”

Fig. 23 — Outdoor-Air Hood Construction

22 1/4”

DIVIDER

BAROMETRIC
RELIEF

CLEANABLE
ALUMINUM
FILTER

FILTER

HOOD

FILTER
CLIP

OUTSIDE
AIR

Fig. 24 — Filter Installation

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. 25 — EconoMi$er IV Wiring