Ascent Oil – August 2019 23
EMERGENCY WIRING
The Ascent Hydrostat 3250-EKT limit control
provided with the Ascent boilers provides advanced
features not found in the industry standard (and readily
available) Hydrolevel Hydrostat 3250. If replacement
of the limit control is required, an off-the-shelf
Hydrostat 3250 can be fitted as a temporary
replacement to provide heat, hot water, and limit
control (safety and operating). Some advanced
features are not available on the standard Hydrostat
control, so the unit should be replaced with a unit from
Energy Kinetics in a timely manner to ensure optimal
efficiency and full boiler functionality.
To temporarily install an off-the-shelf Hydrostat
3250 on the EK1T or EK1T+, follow the standard
wiring diagram with the following exceptions:
1. Reinstall the flow switch to ZC and ZR (factory
installed to L1and ZR)
2. Reinstall the HW Circulator to L1 and L2
(factory installed to L2 and ZC)
3. Increase the Low Limit settings to 10-15°F
higher than needed on the factory installed
control (set to 180° if the setting on the original
unit is unknown). There may be a jumper
(located in the top-right of the Hydrostat
control PCB) that limits the low limit to 140°
max. Remove this jumper to set the proper
limit setting.
When replacing the temporary Universal Hydrostat with the Energy Kinetics Ascent Hydrostat, follow the wiring instructions
found in the Line Voltage Wiring Diagram section of this manual.
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