Trane Round In/Round Out Manual de instalación Pagina 22

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Installation
22 VAV-SVN09B-EN
Pneumatic Units:
Single Duct Hot Water
1. Isolate pneumatic hot water valve and remove valve
from system.
2. Install Proportional orTwo-Position hot water valve.
Ensure that piping is correct to the new style of valve.
3. Field wire actuator 24VAC control voltage toVRRF DDC
controller. See Control Diagrams:
a. Figure 44 and Figure 45 for the UCM 4.2
b. Figure 46 and Figure 47 for the VV550
c. Figure 48 and Figure 49 for the UC400
d. Figure 50 and Figure 51 for the UC210
Pneumatic Fan-Powered:
Duct Pressure Switch Only Fan Control
1. Remove Power and Lock and Tag out unit if it hasn't
been done already.
2. Disconnect duct pressure switch for fan Control in fan
control enclosure and replace it with relay from kit.
3. Connect line voltage wires to relay Normally Open
contacts using existing wires that were connected to
duct pressure switch if possible. See
Figure 12, p. 21
for correct diagram connections
4. Control voltage will be field wired from relay coil to
VRRF DDC controller binary output connections using
cable. See Control Diagrams:
a. Figure 44 and Figure 45 for the UCM 4.2
b. Figure 46 and Figure 47 for the VV550
c. Figure 48 and Figure 49 for the UC400
d. Figure 50 and Figure 51 for the UC210
Pneumatic Fan-Powered:
PE Switch Fan Control
1. Remove Power and Lock and Tag out unit if it hasn't
been done already.
2. Disconnect PE switch and optional duct pressure
switch for fan control in fan control enclosure and
replace PE switch with relay from kit.
3. Connect line voltage wires to relay Normally Open
contacts using existing wires that were connected to
duct pressure switch if possible.
4. Control voltage will be field wired from relay coil to
VRRF DDC controller binary output connections using
cable from kit. See
Figure 12 and Control Diagrams:
a. Figure 44 and Figure 45 for the UCM 4.2
b. Figure 46 and Figure 47 for the VV550
c. Figure 48 and Figure 49 for the UC400
d. Figure 50 and Figure 51 for the UC210
Pneumatic Fan-Powered:
Electric Heat
1. Remove Power and Lock and Tag out unit if it hasn't
been done already.
2. Disconnect PE switch(es) for each stage of heat from
electric heat control enclosure and replace them with
relay(s) from kit.
3. Connect line voltage wires to relay(s) Normally Open
contacts using existing wires that were connected to
PE switch(es) if possible.
4. Control voltage will be field wired from relay coil(s) to
VRRF DDC controller binary output connections using
cable.
Figure 12 and Control Diagrams:
a. Figure 44 and Figure 45 for the UCM 4.2
b. Figure 46 and Figure 47 for the VV550
c. Figure 48 and Figure 49 for the UC400
d. Figure 50 and Figure 51 for the UC210
Note: VRRF Fan Powered unit's UCM andVV550 can only
support two stages of electric heat and your exising
unit may have up to three stages. Contact VAV
Technical Support for field wiring the third stage of
electric heat.
Pneumatic Fan Powered:
Hot Water
1. Isolate pneumatic hot water valve and remove valve
from system.
2. Install Proportional orTwo-Position hot water valve.
Ensure that the piping is correct to the new style valve.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
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