Specifications

JOHNSON CONTROLS
2-26
FORM 102.20-N1 (1109)
Installation
Distortion will result in unreliable
blade operation.
2. Remove 16 gauge shipping plate from air enter-
ing side ONLY. Plate is located between hot and
cold decks.
3. Apply provided 1/4" x 2" neoprene gasket to the
mounting anges of the damper assembly.
4. Center the damper assembly over the discharge
openings of the hot deck (top) and cold deck
(bottom).
5. Attach the damper assembly to the unit outer
perimeter mounting ange using 1/4"-14 x 1"
self-drilling screws provided.
6. Remove 16 gauge shipping plate from air leaving
side.
7. Install screws through mounting anges found
between hot and cold decks.
FIG. 2-36 – MZ DAMPER/ACTUATOR ASSEMBLY
ACTUATOR
025-39032-002
SCREW, TEK, PLTD,
1/4"-14 x .75" LG.
025-19515-000
MTG BKT
086-03474-516
AIR
FLOW
SHAFT
EXTENSION
KIT
026-33715-002
HOT DECK
DAMPER
FACTORY
INSTALLED
COUPLER
COLD DECK
DAMPER
MOUNTING
FLANGES
MOUNTING
FLANGES
ACTUATOR
025-39032-002
SCREW,
025-19515-000
MTG BKT
086-03474-516
HOT DECK
DAMPER
SHIPPING
PLATE
AIR ENTERING
SHIPPING
PLATE
AIR LEAVING
COLD DECK
DAMPER
EXTENSION PIN
LD12029A
aCtUatoR P/n toRQUE BRaCKEt
SMALL 025-39032-002 35 IN LBS 086-03474-516
LARGE 025-30958-008 133 IN LBS
086-03474-516 (Top Disch.)
086-03474-517 (Rear Disch.)
INSTALLATION OF MULTIZONE (MZ)
DAMPERS
See Fig. 2-36
SHIPPED LOOSE MZ DAMPERS. If
the MZ segment has a shipping split,
a rear discharge (end of unit), and a
multizone damper, then the multizone
damper will be shipped loose.
See “Ship Loose Parts” to identify
gaskets and hardware items.
Damper Installation
1. After the unit top tier is assembled to the unit
bottom tier and sealed, install MZ damper as-
sembly. The assembly includes both hot deck
and cold deck damper banks, already connected
at each blade.