Hydrolevel 711 Series - Manual (Page 4)

MAINTENANCE
DIMENSIONS
SPECIFICATIONS
MAXIMUM PRESSURE: 35 PSI
INPUT VOLTAGE: 120 VAC, 60 HZ
SWITCH RATINGS: 5.8 FLA, 34.8 LRA
SWITCH CONTACTS: SPDT
ALARM CIRCUIT: 125 VA @ 120 VAC
Pilot Duty
LIMITED MANUFACTURERʼS 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 manufacture 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 peri-
od, 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 EXCLU-
SIVE remedy and shall be IN PLACE OF any other warranty or guarantee,
express or implied, including, without limitation, any warranty of MER-
CHANTABILITY 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.
83 Water Street • New Haven, CT 06511 • Phone (203) 776-0473 • FAX (203) 773-1019 • www.hydrolevel.com
To insure proper operation, the 711 Series Control
requires periodic maintenance. During normal
boiler operation, sediment may accumulate in the
probe housing. If left unchecked, this sediment
can build up and interfere with the operation of
the control. Failure to properly maintain the con-
trol can lead to severe damage to the boiler or
other property, personal injury or death.
To flush the sediment from the chamber, the con-
trol must be blown down throughout the heating
season in accordance with the following schedule:
First Week Following Installation: Every Day.
Thereafter:
Once a Week.
Instructions: To blow down the control, place a
heat resistant pail directly beneath the control
casting blow down valve. Open the valve and allow
the sediment and water to drain into the pail.
Continue to drain the water until it runs clean. One
to two gallons is generally sufficient.
CAUTION: Protect yourself when blowing down the control.
Hot water and steam will flow out of the control during this process.
OPTIONS
The VXT water feeder (available separately) can be
used with Hydrolevel or other low water cut-offs
to automatically replenish boiler water in the event
of a low water condition. The VXT offers program-
mable feed amount and feed delay settings. These
can easily be set to ensure the proper feed
amount and to provide adequate time for conden-
sate to return to the boiler before starting a feed
cycle. The VXT’s digital feed counter tracks the
amount of water added to the boiler exposing sys- tem leaks, which can significantly shorten the life
of a cast iron boiler.
Additional features
including a manual
feed button under-
feed and flood pro-
tection, make the
VXT an ideal choice
for safety and con-
venience.