TemperZone UC8 User Manual

Temperzone UC8 Operation, OSA models with inverter, issue 1
Page 19 of 27
10. Special modes
The UC8 offers several options for making modifications to the operation of the unit.
Operating the pushbutton in level 1:
• Apply power to the unit and wait until the power-on sequence is completed.
• The compressor must be off and there must be no request to start.
• Hold down pushbutton SW3. After two seconds the display will show the letter t. Continue
pressing the pushbutton until the display shows the character of the desired mode, then
release the button.
Operating the pushbutton in levels 2, 3 and 4:
• In levels 2, 3 and 4 use short button presses to move between options.
• Short presses must be given before the display has shown the same character four times or
else the option shown is selected.
• Therefore, to select an option do not press the button. The display will show the character
four times, then the controller enters the selected mode.
Level 1.
Option
Factory default
t
Start factory test mode
Off
c
Start or end commissioning mode
Off
H
Adjust the indoor fan high speed voltage
5.0V
L
Adjust the indoor fan low speed voltage
8.0V
2.
Advance to level 2.
.
Return to normal mode
Level 2.
A
Change the UC8 Modbus RTU slave address
44
r
Indoor fan fixed speed
Off (0)
o
Turn the thermostat on/off with the remote on/off signal
Off (0)
Y
Enable evaporating / condensing temperature control
Off (0)
3.
Advance to level 3.
.
Return to normal mode
Level 3.
J
Outdoor fan common chamber
No (0)
B
Adjust the serial communications baud rate
19200 (2)
P
Adjust the serial communications parity & stop bit setting
Even parity, 1 stop bit (2)
4.
Advance to level 4.
.
Return to normal mode
Level 4.
E
Select the compressor model
n
Select the expansion valve operating mode
.
Return to normal mode

TemperZone UC8 Specifications

General

Brand	TemperZone
Model	UC8
Category	Controller
Language	English