Hydrolevel 3200 User Manual

*Aquastat is a registered trademark of Honeywell International, Inc.

MODEL 3200

Temp Limit / LWCO Control with Thermal Targeting™

for Water Boilers

120 VAC Input / 24 VAC Burner Circuit PATENT PENDING

INSTALLA TION INS TRU CTIO NS

and OPERATING MAN UAL

• 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

• Operating Indicators – LEDs, Dynamic Display and Test Button provide continual and on-demand status checks

• Prioritizes 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

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 ThermalTargeting™ technology to conserve fuel by monitoring heating demand and establishing target boiler temperatures below the high limit setting (see page 4 for details).

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.

83 Water Street • New Haven, CT 06511 • Phone [phone] • FAX [phone] • www.hydrolevel.com

1

IMMERSION WELLS
Fuel Smart HydroStat can be installed on an existing immersion well already in the boiler or on a Hydrolevel Electro-Well™
(sold separately). The low water cut-off function is automatically activated when installed on an Electro-Well™.
IMPORTANT: The control will not provide low water cut-off protection when installed on a standard immersion well.
NOTE: Do not use heat-conducting grease.
Fuel Smart HydroStat installed	Fuel Smart HydroStat installed
with Hydrolevel Electro-Well™	with standard immersion well

IMPORTANT: For proper operation of the low water cut-off function, there

must be a minimum of ½" clearance between the copper well tube and any surface within Seeth boilerElectro. -Well models on page 8.

NOTE: When installed on a standard immersion well, the “LWCO Active” LED will not illuminate.

MOUNTING THE CONTROL

IMPORTANT Make sure that the immersion well or Electro-Well™ is installed in the boiler manufacturer’s designated temperature limit control tapping.

NOTE: If installing an Electro-Well, pipe sealing compound should be used. Teflon tape is not recommended.

STEP 1 Two mounting positions	STEP 2 Place control on the well.	STEP 3 Insert sensor ALL THE
are available on the back of the control	While holding box against well nut,	WAY into well through the knockout (A
(Fig. 1). Select which of the two positions	tighten well clamp screw. (Fig. 2)	or B) you have chosen. (Fig. 3)
(2 knockouts) is best for the location of
the control. Remove the knockout.
BACK OF
FUEL SMART HYDROSTAT BOX

FIG. 1

FIG. 2

FIG. 3

NOTE: In the case of space restrictions, the Fuel Smart HydroStat control may be mounted in a horizontalorientationwithout any loss of function. Hydrolevel recommends vertical mounting, when possible, for proper orientation of LED display.

are available separately for mounting the Fuel Smart HydroStat control box in a remote location. Each kit includes mounting hardware and a remote sensor. See page 8 for kit options.

2

WIRING

WARNING Electrical shock hazard. To prevent electrical shock, death or equipment damage, disconnect power supply before installing or servicing this control.

L1. Connect 120 VAC Hot to terminalSTEP 1 Connect 120 VAC Neutral to terminal L2. Disconnect means and overload protection as required (provided by others).

STEP 4 Connect the thermostat

to T-TV.

STEP 2 Connect the burner

circuit to B1-B2. (B2 is neutral.)

If the boiler is equipped withSTEPa plug5-in style vent damper, unplug the factory installed jumper from the receptacle on the circuit board and replace it with the vent damper plug. NOTE: Once a vent damper plug is connected to the HydroStat, the control is permanently altered and will no longer function when the vent damper plug is disconnected.

WhenSTEPinstalling6 Forwith Systemsan indirect waterwithheater,Indirectthe signal fromWaterthe indirectHeatersmust be separated from the heating zone signals and wired to I1 and I2 as shown above. Calls to I1 and I2 will bypass the Thermal Targeting feature and allow the boiler to fire to the high limit setting to heat the indirect tank.

NOTE: If you choose not to separate the indirect signal from the heating zones, the Economy Feature should the turned OFF to insure that the boiler supplies adequate temperature to heat the indirect tank (see page 4).

3

STEP 3 Connect the circulator

to C1-C2. (C2 is neutral.)

IMPORTANT:ZONE VALVE WIRING

Use a separate transformer to power z one v alves. C onnecting zone v alves to Z-TV may overload the HydroStat and cause a lock-out condition (see Troubleshooting on page 6 for more information). The total load, including the burner circuit, vent damper, and Z-TV connections must not exceed 1.2 amps (30 VA). Connect zone valve end-switch to T-TV as shown below.