Installing Multi-Zone (Mz) Dampers; Figure 50 - Installing Mz Damper - Pace PAI Installation And Assembly Manual

PACE │ Installation & Assembly Manual

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 Figure 50 on
page 42.
Distortion will result in unreliable blade
operation.
ACTUATOR
(P/N 025-39032-002)
1/4 in. - 14 X .75 in.
(P/N 025-19515-000)
MOUNTING BKT
(P/N 086-03474-516)

Figure 50 - Installing MZ Damper

Issue Date: 07/03/2018
SCREW
SECTION 3 - HANDLING, STORAGE, AND INSTALLATION
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.
ACTUATOR
(P/N 025-39032-002)
MOUNTING BKT
(P/N 086-03474-516)
AIR FLOW
1/4 in. - 14 X .75 in.
(P/N 025-19515-000)
SHAFT EXTENSION KIT
(P/N 026-33715-002)
MOUNTING
FLANGES
HOT DECK
DAMPER
FACTORY INSTALLED COU-
PLER
COLD DECK DAMPER
42
EXTENSION
SCREW
SHIPPING
PLATE AIR
LEAVING
MOUNTING
FLANGES
Form PA102.20-N1
PIN
HOT DECK
DAMPER
SHIPPING
PLATE AIR
ENTERING
COLD DECK
DAMPER
LD12029a