Unit Startup
RT-SVX24J-EN
99
Set Drain Duration Timer
Enter service test mode from unit Human Interface.
Navigate to the compressor condenser fan submenu.
Under head pressure control, use manual control.
Close drain valve and energize water inlet solenoid valve
until water reaches nominal level. Once level is achieved,
de-energize fill solenoid. Open drain valve and time how
long it takes for the water level to drop one inch, make sure
to take into account the closing time of the valve.
Chemical Water Treatment Tree
TheTrane evaporative condenser comes with a PVC tree to
allow easier inputs for third party water treatment.The tee
labeled A is a ¾ inch NPT threaded input, see
Figure 65
.
Tees B and C are 1/2 inch NPT threaded inputs. The ball
valve can be used to stop the water flow through the tree
to allow the customer to add hookup of water treatment,
or to change and update water treatment with the unit
running.
Units with DolphinWaterCare™or conductivity sensor will
have the conductivity sensor installed into the ¾ inch tee
with the other tees plugged. For all other units, A, B and C
will be plugged, see
Figure 65
. Ensure the ball valve is in
the open position when water treatment is being operated
in the system to make sure water flows through the tree
and transports treatment to the unit sump.
Conductivity Controller
Upon startup, the conductivity controller must be
calibrated and setup for operation. Below are the
necessary steps to accomplish those tasks.The controller
has two setpoints that control two relays. Both of these
setpoints will need to be set by Dolphin or a local water
treatment expert.
1. The first setpoint is the standard point blowdown
point.
– When the setpoint is exceeded the relay (K1) will be
energized and a blowdown request will close the
Water treatment request binary input on the MCM.
Figure 63. Actuator shaft adapter removal/assembly
Figure 64. Actuator is shipped in “Drain during power
loss” configuration
Locking clip
Shaft adapter
1
2
To drain during power loss,
set shaft adapter to 0 degrees
To hold during power loss,
set shaft adapter to 90 degrees
Figure 65. Chemical water treatment tree
Содержание SEHJ090-162
Страница 40: ...Dimensional Data 40 RT SVX24J EN Figure 13 Evaporative condenser water connection locations RIGHT SIDE VIEW ...
Страница 48: ...Installation 48 RT SVX24J EN Figure 18 Ductwork conversion ...
Страница 58: ...Installation 58 RT SVX24J EN Figure 36 5 Connected tubes 6 install panels Connected tubes 5 6 ...
Страница 75: ...Installation RT SVX24J EN 75 Figure 51 Hot water coil piping Figure 52 Steam coil piping ...
Страница 87: ...Installation RT SVX24J EN 87 Figure 57 Typical field wiring diagram for 90 to 162 ton CV control options ...
Страница 89: ...Installation RT SVX24J EN 89 Figure 59 Typical field wiring diagram for 90 to 162 ton VAV control options ...