REMKO EFS 25-35 - Manual (Page 34)

Error on the probe
An error on a probe only affects the functions that use the probe. The controller can no longer execute the
affected function correctly and stops controlling this function. All other functions of the controller continue to
work properly.
Error on the probe Terminal Effect on control
Inlet temperature, primary (TVL) 1, ^ The controller takes 75 °C as the preliminary
value so that regulation can continue to be
carried out.
Hot water temperature, secondary (TWW) 2, ^ The controller uses the temperature value of
the E.1 and T probes for regulation.
Source temperature, primary (TQ) 3, ^ The source temperature has no effect on reg-
ulation.
Cold water temperature, secondary (TKW) 4, ^ The cold water temperature has no effect on
regulation
Hot water temperature, secondary E.1, T FriwaMini Basic and Premium: Regulation
stops. FriwaMidi, FriwaMaxi, FriwaMega: The
hot water temperature at terminals 2, ^ is
used for regulation. An error on E.1, T has no
long-term effect on regulation.
Medium flow rate, secondary E.1, V‘ Regulation stops.
Check the temperature probe Pt1000
DANGER!
Danger of death due to electric shock!
Before opening the unit, ensure that all cables that lead to the unit are disconnected from the mains and
cannot be inadvertently connected to the mains!
1. Remove the terminal cover.
2. Disconnect the temperature probe.
3. Measure the resistance of the temperature probe with an ohmmeter and compare them with the table
below. Slight variations are permitted.
4. Attach the terminal cover.
Correlation between temperature and resistance
Temperature
[°C]
-30 -20 -10 0 10 20 30 40 50 60 70
Resistance [Ω] 882 922 961 1000 1039 1078 1117 1155 1194 1232 1271
Temperature
[°C]
80 90 100 110 120 130 140 150 160 170 180
Resistance [Ω] 1309 1347 1385 1423 1461 1498 1536 1573 1611 1648 1685
REMKO fresh water station Controller
34