96
RT-SVX24Q-EN
a thermostat and strip heater that will protect LCD
from cracking at low ambient conditions. The
thermostat closes at 15°F and opens at 25°F.
Procedure to calibrate conductivity
1. Use a calibrated thermometer and a known
conductivity rating. There are two different options
for having a liquid with known conductivity:
N
No
otte
e:: Visit the
for additional
information and resources.
•
Purchase a liquid with known conductivity
rating
•
Purchase a handheld conductivity reader
2.
Close the ball valve on the chemical treatment tree
and remove the conductivity sensor from the tree.
3.
Enter service test mode on the unit and turn the
pump on, ensuring the compressors are set to OFF.
4.
With the conductivity controller connected to the
sensor and power, enter the CALIBRATE menu by
holding down the ENTER key for 2 seconds.
5.
When asked for the calibration key code, hit the UP,
UP, UP, DOWN arrow keys in sequence.
6.
Using the UP and DOWN arrows go to Chan 1 Cell:
Standard. Ensure this channel is set to standard.
7.
If not, press the RIGHT arrow key and set to
standard then press the ENTER key to return to the
CALIBRATION menu.
8.
Using the UP and DOWN arrows go to Chan 1 Cell.
Ensure that the cell constant is set to 1.0.
9.
If not, press the RIGHT arrow key and set the cell
constant to 1.0. Then press the ENTER key to return
to the CALIBRATION menu.
10. Using the UP and DOWN arrows go to Chan 1 Set:
Temperature and press the RIGHT arrow key to
enter the edit mode.
11. Adjust the temperature on the controller to match
the actual temperature.
12. Press the ENTER key to save the input and return to
the CALIBRATE menu.
13. Using the UP and DOWN arrows, go to the Chan 1
Set: Conductivity and press the RIGHT arrow key to
enter the edit mode.
14. Adjust the conductivity on the controller to match
the actual conductivity rating of the liquid.
15. Press the ENTER key to save the conductivity rating
and return to the CALIBRATE menu.
16. When finished calibrating the controller, press the
UP and DOWN key simultaneously to return to
normal operating mode.
Procedure to set purge setpoints on the
conductivity controller
Work with local water treatment expert to identify
nominal purge and emergency purge conductivity
value.
N
No
otte
e:: Visit the
for additional
information and resources.
1.
Close the ball valve on the chemical treatment tree
and remove the conductivity sensor from the tree.
2.
Enter Service test mode on the unit HI and energize
the sump pump, ensuring the compressors are set
to OFF.
3.
With the conductivity controller connected to the
sensor and power, enter the CALIBRATE menu by
holding down the enter key for 2 seconds.
4.
When asked for the calibration key code, hit the UP,
UP, UP, DOWN arrow keys in sequence.
5.
Using the UP and DOWN arrows, go to Relay 1
Setpoint: and press the RIGHT arrow key to enter
edit mode (K1).
6.
Adjust the set point to the nominal blowdown
conductivity value.
7.
Press the ENTER key to return to the CALIBRATE
menu.
8.
Using the UP and DOWN arrows, go to Relay 2
Setpoint:and press the RIGHT arrow key to enter
edit mode (K2).
9.
Adjust the set point to the emergency conductivity
value.
10. Press the ENTER key to return to the CALIBRATE
menu.
11. When finished setting the values, press the UP and
DOWN key simultaneously to return to normal
operating mode.
Units Without an Economizer
Upon entering an “occupied” mode of operation, the
RTM receives input from the remote panel to start the
supply fan. For constant volume applications, the RTM
supply fan contacts close, which energizes the supply
fan contactor. When the supply fan starts, the fan
proving switch closes, signaling the RTM that airflow
has been established and the VFD will begin to ramp
the fan (if equipped).
When a cooling request is sent to the RTM from a zone
temperature sensor, the RTM evaluates the operating
condition of the system using the supply air
temperature input and the outdoor temperature input
before sending the request to the MCM. Once the
request is sent to the MCM, the compressor module
checks the compressor protection circuit before closing
“Stage 1". After the first functional stage has started,
the compressor module monitors the saturated
refrigerant temperature and closes the condenser fan
output contact, when the saturated refrigerant
temperature rises above the “lower limit” setpoint.
Содержание IntelliPak 2 Series
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