DOC# T0008 2.23.2016 DFC O&M
3
Ph. (877) 351-4702
www.RTC-Solutions.com
4380 Oakes Road, Suite 804
Fax (919) 845-8102
Email: [email protected]
Davie, FL 33314
Programming
Please refer to the “DFC Menu Map” on Page 4 for programming in program mode. To enter program mode, hold the
key down for 3 seconds until “SPLo” is displayed. Use the
and
keys to navigate to the desired menu
parameter as shown in column 1. To edit a menu parameter, press the
key once on the desired parameter. Displayed
will be the current value of that parameter as shown in column 2. Use the
and
keys again to edit the parameters
for column 2. Press the
key to save the changes made or the
key to cancel without saving and return to column
1. If a key is not pressed for 10 seconds or the
key is held for 3 seconds while in program mode, the control will
return to normal mode.
Features
Alarms:
Error messages on the DFC will be scrolled across the display with a detailed message. This will allow users to realize the
issue in order to resolve the error faster. Below are the list of errors and their meanings.
1.
“dFtS oPEn” – There is no Discharge Temperature Sensor connected to the DFC. Therefore, no discharge
temperature reading can be made.
2.
“dFtd oPEn” – The user has the Remote (“rEtd”) parameter on the DFC enabled, but no external control is found
to take a reading.
3.
“dFts ShortEd” – There is a short in the connection of the Discharge Temperature Sensor.
4.
“dFtd ShortEd” – The user has the Remote (“rEtd”) parameter on the DFC enabled and there is a short in the
connection.
To resolve an issue check the wiring connections. Please refer to “Installation” on page 5 for proper terminal connections.
Password:
When trying to access program mode, if the DFC is password protected the display will show “PASS”. Otherwise the
display will show “SPLo”, which is the start of program mode. If password protected no menu settings may be altered
until the correct password is entered. In order to enter the password press the
key while “PASS” is displayed and
use the
and
keys to set the DFC to the factory set password (21). Once on the number 21, press the
key
again to access program mode. If the wrong password is entered then the DFC will return to normal mode.
Modulating Valve Outputs:
The DFC has the ability to power either a 24V DC or a 10V DC modulating valve. Only one valve at a time may be connected.
ENT
DN
UP
ENT
ENT
LT
ENT
DN
UP
RT
DN
UP
ENT
Connection for 0-24V DC use terminals 7 and 8
Connection for 0-10V DC use terminals 8, 9, and 10
6
7
8
9
10
7 PWM For Solenoid Valve
8 24VDC Valve Output
9 0‐10VDC Valve Output
10 Valve Ground
Figure 3: DFC Modulating Output
Terminals