Controls Installation; Manufacturer Reserves The Right To Discontinue, Or Change At Any Time, Specifications Or Designs Without Notice And Without Incurring Obligations - Carrier WEATHER MASTER P4 Installation Instructions Manual

SMOKE PURGE — Smoke Purge mode removes smoke
from the interior spaces and replaces it with fresh outside air.
The factory-installed optional economizer with option/
accessory power exhaust are required for this function. Smoke
purge is accomplished by the following:
• turning supply fan on
• opening the economizer (option required)
• running the exhaust fans (option or accessory required)
• opening the exhaust dampers
See Fig. 82 for wiring.
SMOKE CONTROL INSTALLATION — Implementation of
the various smoke control modes on these units requires the in-
staller to modify the unit wiring to add contacts (via either
manual switches or relays) that will selectively interrupt and
override standard factory control sequences. See Table 31 and
Fig. 81 and 82 for more information.
Copyright 2010 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53480079-01
Fig. 86 — Open System Network Wiring
Fig. 86 — BT485 Installation
Printed in U.S.A. Form 48P-4SI
Table 31 — Smoke Control Modes
FUNCTION
Fire
Shutdown
Supply Fan Off
VFD† —
Economizer Closed
Return Air
Open
Damper
Exhaust
Off
Fans
Exhaust
Closed
Damper
LEGEND
VAV — Variable Air Volume
VFD — Variable Frequency Drive
*Power exhaust option required for this mode.
†Applicable to VAV units with appropriate options.
Pg 76
MODE
Pressur- Smoke
Evacuation*
ization Purge*
On Off On
Open/On — Open/On
Open Open Open
Closed Closed Closed
Off On On
Closed Open Open
11-10 Replaces: 48P-3SI