126 Bailey Road • North Haven, CT 06473 • (203) 776-0473 • FAX (203) 764-1711 • www.hydrolevel.com
6001M 0623
OPERATING INSTRUCTIONS
Operation
A call for heat between terminals Rand Wwill energize both relays at the same time.
LOAD 1 can be used to control a circulator. For convenience, a jumper has been factory installed between terminals
L1 and COM1.
LOAD 2 can be used as dry contacts to signal the boiler that there is a call for heat. Terminals COM2 and NO2 are
the contacts that will close on a call to Rand W.
Note: Both relay outputs are rated for 6 amps so either output, LOAD 1 or LOAD 2 can be used to control a circulator
pump.
Test Button
Push the test button on the circuit board to test the output terminal wiring. Pressing the test button will simulate a
call on the thermostat input and turn on the “ZONE” LED. The relays will both close to verify the desired operation.
When the zone is not calling for heat (by thermostat or test button), the “ZONE” LED will be off.
Zone Fault Indicator
A Blinking “ZONE” LED indicates the zone has been calling for a consecutive 3 hours and has not been satisfied.
This could indicate a bad circulator and should be investigated. If the “ZONE” LED is blinking but your circulator is
operating per it’s instruction manual, please contact tech support.
The LED will only blink when the zone call is a continuous 3 hours and the “ZONE” LED will return to normal opera-
tion when the zone call ends.
DIMENSIONS AND LED INDICATORS
LIMITED MANUFACTURER’S WARRANTY
We warrant products manufactured by Hydrolevel Company to be free from defects
in material and workmanship for a period of two years from the date of manufac-
ture or one year from the date of installation, whichever occurs first. In the event
of any claim under this warranty or otherwise with respect to our products which
is made within such period, we will, at our option, repair or replace such products
or refund the purchase price paid to us by you for such products. In no event shall
Hydrolevel Company be liable for any other loss or damage, whether direct, indirect,
incidental or consequential. This warranty is your EXCLUSIVE remedy and shall be
IN PLACE OF any other warranty or guarantee, express or implied, including, without
limitation, any warranty of MERCHANTABILITY or fitness for a particular purpose.
This warranty may not be assigned or transferred and any unauthorized transfer or
assignment thereof shall be void and of no force or effect.
SPARE
FUSES
INSIDE
COVER
POWER
ZONE
MODEL 6001
Solid “POWER” LED –
Control is powered up
Solid “ZONE” LED –
Call for heat
Blinking “ZONE” LED –
Zone Fault Indicator
Zone has been
calling for consecutive
3 hours and has not
been satisfied.
(Could indicate a bad
circulator)
