EnerWorks Solar Water Heating Appliance
© 2011 EnerWorks Inc. - Page
51
-
Energy Kinetics Inc. / Installation
Manual
PRGM Item
Description
Default
(operating mode)
Automatic (“
Au”
), On (“
On”
), or Off (“
oFF”
),
-
On
reverts to
Automatic
after 15 minutes,
-
Off
remains off until operating mode is changed
Au
Δ
T
Setpoint temperature difference between Source
and Storage temperatures
DO NOT MODIFY
Default 18°F (10°C)
Δ
T Diff’l
Differential for setpoint
Δ
T
DO NOT MODIFY
Default 9°F (5°C)
Minimum Source
Minimum Source setpoint temperature
DO NOT MODIFY
Default 41°F (5°C)
Minimum Source
Diff’l
Differential for Minimum Source setpoint
temperature
DO NOT MODIFY
Default 9°F (5°C)
Maximum Storage
Maximum Storage setpoint temperature
Modification permitted only for
Space-Saver
TM
Appliance
Default 185°F (85°C) to 122°F (50°C)
Maximum Storage
Diff’l
Differential for Maximum Storage setpoint
temperature
DO NOT MODIFY
Default 9°F (5°C)
°F or °C (blinking)
Temperature units
°C
Error Messages
:
A multi-meter or ohm-meter should be used to test the resistance of the thermistors (temperature sensors)
at the Source (solar panel) and Storage (solar storage tank) before they are wired to the controller. A table
of temperature and resistance is included below (
Table 9
) and in the troubleshooting guide of the
installation manual. If there is a problem with a sensor or with a connection, one of the following Error
messages will be displayed. If an error message is displayed, check associated sensor and connections.
Table 9. Thermistor resistance vs. Temperature
Error Description
Source Err
Source (solar panel) sensor error
open/short circuit
Storage Err
Storage (tank) sensor error
open/short circuit