SECTION 3 - HANDLING, STORAGE, AND INSTALLATION
PACE
│
Installation & Assembly Manual
Issue Date: 07/03/2018
42
Form PA102.20-N1
Installing Multi-Zone (MZ) Dampers
If the MZ segment has a shipping split,
a rear discharge at the end of the AHU,
and a MZ damper, the damper will be
shipped loose.
1. Identify the gaskets and hardware needed for in-
stallation.
2. After the AHU top tier is assembled to the bottom
tier and sealed, install the MZ damper assembly,
which includes the hot (top) deck and cold (bot-
tom) deck damper banks that are already con-
nected at each blade as shown in
Distortion will result in unreliable blade
operation.
3. Remove the 16-gauge shipping plate, which is
located between the hot and cold decks from air
entering side only.
4. Apply the neoprene gasket to the mounting flang-
es of the damper assembly.
5. Center the damper assembly over the discharge
openings of the hot and cold decks.
6. Attach the damper assembly to the AHU's outer
perimeter mounting flange, using the screws
pro-
vided.
7. Remove the 16-gauge shipping plate from the air
leaving side.
8. Install the screws through the mounting flanges
between the hot and cold decks.
LD12029a
Figure 50 -
Installing MZ Damper
ACTUATOR
(P/N 025-39032-002)
SCREW
1/4 in. - 14 X .75 in.
(P/N 025-19515-000)
MOUNTING BKT
(P/N 086-03474-516)
MOUNTING
FLANGES
HOT DECK
DAMPER
COLD DECK DAMPER
FACTORY INSTALLED COU-
PLER
AIR FLOW
SHAFT EXTENSION KIT
(P/N 026-33715-002)
MOUNTING BKT
(P/N 086-03474-516)
ACTUATOR
(P/N 025-39032-002)
SCREW
1/4 in. - 14 X .75 in.
(P/N 025-19515-000)
MOUNTING
FLANGES
COLD DECK
DAMPER
HOT DECK
DAMPER
SHIPPING
PLATE AIR
ENTERING
SHIPPING
PLATE AIR
LEAVING
EXTENSION
PIN
