Hydrolevel 3250 - Manual

1
83 Water Street • New Haven, CT 06511 • Phone (203) 776-0473 • FAX (203) 773-1019 • www.hydrolevel.com
MODEL 3250
Temp Limit / LWCO Control
with Thermal Targeting ™
for Water Boilers
120 VAC Operating Voltage
PATENT NO. 7,891,572
WARNING Electrical shock hazard. To prevent electrical shock, death or
equipment damage, disconnect power supply before
installing or servicing control. Only qualified personnel may install or service this control in
accordance with local codes and ordinances. Read instructions completely before proceeding.
CAUTION To prevent serious
burns, boiler
should be thoroughly cooled before installing or
servicing control.
Three Function
Design
Temperature Limit Control
Designed for cold start and tankless
coil boilers.
Low Water Cut-Off
Provides protection against potentially
dangerous low water conditions
when installed with the Hydrolevel
Electro-Well™ (see page 2 for details).
Boiler Reset Control
Utilizes Thermal Targeting ™
technology to conserve fuel by
monitoring heating demand and
establishing target boiler temperatures
below the high limit setting (see page 7
for details).
INSTALLATION INSTRUCTIONS
and OPERATING MANUAL
• Saves Fuel – Features Thermal Targeting™ technology and
Thermal Pre-Purge capability
• Universal Design – Replaces common cold-start and triple-action
Aquastats*
• Easy to Install – Industry standard wiring, dial-type settings,
no external sensors necessary
• Operating Indicators – LEDs, Dynamic Display and Test Button provide
continual and on-demand status checks
• Prioritizes Domestic Hot Water – Gives priority to low limit setting or to
calls from indirect water heater
• Reduces Condensation – Holds circulator off until boiler reaches 120°F
•
*Aquastat is a registered trademark of Honeywell International, Inc.