Controller Replacement (Pvb6438Ns); Controller Replacement (Pvb6436As); Controller Replacement (Pub6438S) - Honeywell Spyder PUB6438S Installation Instructions Manual

SPYDER® BACNET® PROGRAMMABLE, VAV/UNITARY CONTROLLERS
1.
STRIP 1/2 IN. (13 MM)
1/2
FROM WIRES TO
(13)
BE ATTACHED AT
ONE TERMINAL.
2.
TWIST WIRES
TOGETHER WITH
PLIERS (A MINIMUM
OF THREE TURNS).
3.
CUT TWISTED END OF WIRES TO 3/16 IN. (5 MM)
BEFORE INSERTING INTO TERMINAL AND
TIGHTENING SCREW. THEN PULL ON EACH
WIRE IN ALL TERMINALS TO CHECK FOR
GOOD MECHANICAL CONNECTION.
Fig. 11. Attaching two or more wires at terminal blocks.

Controller Replacement (PVB6436AS)

For PVB6436AS controllers, which are hard-wired to an
actuator, perform the following actions to replace the complete
assembly (controller and actuator):
1. Remove all power from the controller.
2. Remove the two air flow pickup connections from the
pressure sensor.
3. Remove the terminal blocks.
4. Remove the old controller and actuator assembly from
its mounting.
• Loosen the two bolts on the actuator clamp to
release the actuator from the shaft.
• Remove the controller's mounting screws.
• Gently pull the controller and actuator assembly
straight out, until the assembly is clear of the
actuator shaft.
5. Mount the new controller and actuator assembly (See
"Installation" on page 2.).
6. Reconnect the two air flow pickup tubes to the pressure
sensor (See "Piping (PVB6436AS and PVB6438NS)"
on page 4.).
7. Replace the terminal blocks:
• Insert each terminal block onto its alignment pins.
• Press straight down to firmly seat it.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
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® U.S. Registered Trademark
© 2009 Honeywell International Inc.
62-0310—01 M.S. 08-09
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35 Dynamic Drive
Toronto, Ontario M1V 4Z9
• Repeat for each terminal block.
8. Restore power to the controller.

Controller Replacement (PVB6438NS)

Perform the following to replace the PVB6438NS controller:
1. Remove all power from the controller.
2. Remove the two air flow pickup connections from the
pressure sensor.
3. Remove the terminal blocks.
4. Remove the old controller from its mounting.
IMPORTANT
(FOR CONTROLLERS MOUNTED TO A DIN RAIL):
1. Push straight up from the bottom to release the top
pins.
2. Rotate the top of the controller outwards to release
the bottom flex connectors (see Fig. 6 on page 4).
5. Mount the new controller.
• See "Installation" on page 2.
6. Reconnect the two air flow pickup tubes to the pressure
sensor (See "Piping (PVB6436AS and PVB6438NS)"
on page 4.).
7. Replace the terminal blocks:
• Insert each terminal block onto its alignment pins.
• Press straight down to firmly seat it.
• Repeat for each terminal block.
8. Restore power to the controller.

Controller Replacement (PUB6438S)

Perform the following to replace the PUB6438S controller:
1. Remove all power from the controller.
2. Remove the terminal blocks.
3. Remove the old controller from its mounting.
IMPORTANT
(FOR CONTROLLERS MOUNTED TO A DIN RAIL):
1. Push straight up from the bottom to release the top
pins.
2. Rotate the top of the controller outwards to release
the bottom flex connectors (see Fig. 6 on page 4).
4. Mount the new controller (See "Installation" on page 2.).
5. Replace the terminal blocks:
• Insert each terminal block onto its alignment pins.
• Press straight down to firmly seat it.
• Repeat for each terminal block.
6. Restore power to the controller.