Honeywell TrueZONE Bypass CPRD Serie Notice D'installation page 2

®
TRUEZONE BYPASS (CPRD)
INSTALLATION
Select Damper Location
Install the CPRD onto a starting collar or in duct that loops
from supply to return. The supply side take-off must be before
any zone dampers. It is best to install the return side of this
loop as far a practical from the air handler.
The CPRD can be mounted in vertical or horizontal ductwork,
or at any angle. The damper may also be rotated to be
installed with the regulator on either side, top or at any angle
between.
Secure the damper to sheet metal ductwork with screws or to
flex-duct with tape. If ducting with flex-duct, the outer layer of
plastic can be taped to the damper mounting flange to fully
insulate the damper.
Alternatively, the CPRD can dump air from the supply to a
non-critical temperature area such as a hallway, basement, or
false ceiling.
Attach Regulator to Damper
1. Align the regulator with the "D" shaft on the damper (see
Fig. 1).
2. Slide the regulator onto the "D" shaft and push down
while turning counterclockwise until it snaps into place
(see Fig. 2).
Setting the Regulator
The CPRD is factory set to open at approximately .5"WC."
This setting is satisfactory for most installations. Some
systems have higher static pressure.Test this by:
1. Make all zones call fan, heat, or cool; whichever has the
highest CFM.
2. Verify that the damper position indicator points to
closed.
3. If it does not point to closed:
• Flip the adjustment crank out (see Fig. 3)
• Push down on the adjustment crank with gentle
pressure. Caution: Do not rotate the adjustment
crank without first pushing it down
• Turn the adjustment crank clockwise until the
indicator points to closed
• When done, flip the adjustment crank back into the
locked position
4. Make only the smallest zone call for fan, heat, or cool.
5. Verify that the airflow into that zone is not objectionable.
If it is, then set the regulator to a lower pressure.
Removing the Regulator
If you need to remove the regulator from the damper, do so by
pressing the red release button. See Fig. 4. It is easier to
remove the regulator after turning the pressure down to a
lower setting.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
PRESSURE SETTING
INDICATOR
RELEASE
BUTTON (RED)
® U.S. Registered Trademark
© 2012 Honeywell International Inc.
69-2770EFS—03 M.S. Rev. 12-12
Printed in United States
M34208
Fig. 1.
Fig. 2.
M34210
Fig. 3.
DAMPER POSITION
INDICATOR
ADJUSTMENT
CRANK
M34211
Fig. 4. CPRD regulator
M34209