SOLO
400-632-000-A 2008-09-19 6/7
NOTE: The Select button flashes during the error display when there
is corrective action to be taken. Also, the appropriate wording flashes
on the screen to pinpoint the source of the problem.
All programmed settings (time and temperature) are not erased
during a power outage. However, if a power outage exceeds 4 hours,
only the thermostat’s clock must be set (refer to section 3.1). When
power returns, the thermostat returns to the operating mode
preceding the power outage.
If you have multiple SOLO thermostats, you can connect them to
form a network. This allows you to:
•
Use the “Send to Network” feature. This feature allows you to
program only one thermostat in the network and be able to send
its settings to the other thermostats. This reduces programming
time during installation and is useful when you are leaving for
vacation or returning home from a vacation.
•
Display the outdoor temperature or humidity from any thermostat
(requires outdoor sensor AC629 - refer to section 10).
To connect thermostats in a network:
n
Insert a pair of 18-gauge wires (not supplied) through one of the
two openings on the thermostat base and connect them to
terminals 2 and 3.
NOTE: Pay close attention to the polarity of the connections.
Link all terminals “2” together and all terminals “3” together.
o
Configure any one of the thermostats in the network as “Master”
using DIP Switch 2 and leave the rest as “Slave”. Refer to step 5
in section 2.
The following will appear on the “master” thermostat and “slave”
thermostat(s) when the thermostats are powered up:
Send to Network
The Send to Network function is available on the “master” thermostat
only. It is used to send the settings of the “Master” thermostat to all
“slave” thermostats in the network.
NOTE: Send to Network is not available if the “Master” thermostat is
not connected to other SOLO thermostats in a network.
To send the settings from the “master” thermostat to the “slave”
thermostat(s):
n
Press and hold the
Select
button for 2 seconds to enter the
Programming Menu.
o
Using the
Up
or
Down
button, go to
Send to Network
and press
the
Select
button.
p
Using the
Up
or
Down
button, choose Yes and press the
Select
button. All settings are now transmitted to the “slave”
thermostat(s). You will automatically be returned to the
Programming Menu.
t
Error Displays
7.
The GFCI has tripped. Reset the thermostat (refer to
section 6). If the GFCI trips again, cut power to the
heating system from the main electrical panel and have
the installation verified by an electrician.
It is normal that this briefly appears at power-up. Wait
for the thermostat to obtain its reading. No corrective
action is necessary.
The temperature reading is higher than 158 °F (70 °C).
Although the thermostat does not display temperatures
above that value, it continues to operate and control the
temperature. No corrective action is necessary.
The ambient or floor temperature reading is lower than
32 °F (0 °C) or the outdoor temperature reading is lower
than -40 °F (-40 °C). Although the thermostat does not
display temperatures below that value, it continues to
operate and control the temperature. No corrective
action is necessary.
Two or more thermostats have been configured as
“master” in the same network (refer to section 9). Only
one thermostat per network must be configured as
“master”. This error code will appear only on all
thermostats configured as “master” thermostats.
There is a short in the network wires. This can indicate
the terminal polarity was not observed during the
network cable connections (refer to section 9). Although
the error code appears only on the master thermostat,
the short or bad connection can be anywhere in the
network.
The floor sensor circuit is open. This can be caused by
a cut in the sensor wires. Replace the floor sensor. The
thermostat is automatically set to use the “Ambient”
setpoint temperatures (refer to section 5.2). The
maximum heating power is 100% if the thermostat has
been configured for a tile floor and 70% for a wood
floor.
The floor sensor is shorted. This can happen, for
example, if a nail or screw has been driven through the
wires. Replace the floor sensor. The thermostat is
automatically set to use the “Ambient” setpoint
temperatures (refer to section 5.2). The maximum
heating power is 100% if the thermostat has been
configured for a tile floor and 70% for a wood floor.
The ambient temperature sensor circuit is open.
Replace the thermostat.
The ambient temperature sensor is shorted. Replace
the thermostat.
u
Power Outage
8.
v
Network Connection
9.
Appears on
a “master”
thermostat
Appears on
a “slave”
thermostat
400-632-000-A (Nuheat OEM632) ENG.fm Page 6 Friday, September 19, 2008 4:35 PM
