ESIE13-02
Troubleshooting
73
Part 4 – Troubleshooting
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1.2.14 Space Heating Capacity Shortage at Low Outdoor Temperatures
Applicable models
EHB*CA, EHV*CA
Error detection
method
Error generating
condition
Supposed causes -
corrective action
A. General: independent from DHW - setpoint mode
Possible causes
Corrective action
The settings related to space heating operation
at low Ta - equilibrium temperature status
(backup heater allowance) [5-00] and equilib-
rium temperature [5-01] - are not set or not opti-
mized according to the site application
(1)
.
Optimize the settings related to space heating
operation at low Ta - equilibrium temperature
status (backup heater allowance) [5-00] and
equilibrium temperature [5-01] - according to the
site application:
[5-00] = “1”
[5-01] = the applicable Ta where the heating
load and Altherma Hybrid available heating
capacity are in balance*.
Other related settings to optimize:
[5-02] = “1”
[5-03] = “[5-01]
(2)
+ 3~5°C”
