BCU WAX SETTING
Set Adjustment 1/2 way in
Active Thermostat
wired to come on
at 20 o degrees
# See wiring
diagram supplied
with thermostat
Active Thermostat
wired to turn off at
55o degrees
# See wiring
diagram supplied
with thermostat
Copper probes
4 WAY TEE
Supplied by Pivot
Sensor well
Supplied by plumber
Reducing Caps
Supplied by Pivot
BCU Recommended Set Up
Active Pump
(3)
Active GPO
(1)
Active Pump
(2)
Active GPO
(1)
NEUTRAL
NEUTRAL
Pump
Pump
GPO
GPO
Earth Pump
Earth Pump
Earth GPO
Earth GPO
Reducer Cap
Supplied By Pivot
1
. Allen key to be dialled all the
way in. And one an a half turns
outwards, this is the correct mix
of cold and hot water.
2.
Pump setting to be set to
number 1 towards the left hand
side on the constant setting, as
indicated.
3A.
Siemens thermostat to
activate the BCU to come on
at 20 degrees, this is wired into
terminal 3 and 1.
3B
. Siemens thermostat to be
wired to turn the pump of one to
temperatures reach 55o. This is
wired to terminal 2 &2.
4.
Sensor Tee’s one to be
installed below the BCU on
the flow line. Two thermostats
required for the BCU.
*
It is recommended to operate
the BCU with two thermostats,
one activating the pump at a
lower temperature and to shut
off at a higher temperature.
*
Typical install requires only one
thermostat to shut off at a higher
temperature.
BCU PUMP SETTING
1
2
1
2
3A
3B
3A
3B
4
5
Hydronic Systems
Hydronic Manual
Project Number
N/A
Drawn By
Pivot Hydronics
Checked By
Pivot Hydronics
Date
24/9/16
A- 8.00
Sheet Number
8
REV
-
Pivot Stove and Heating
*NOT TO SCALE*
Notes:
RECOMMENDED SET UP
Sensor Tee Provision
For Field Pump
