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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 

Copper probes

4 WAY TEE

Supplied by Pivot

Sensor well

Supplied by plumber

Reducing Caps

Supplied by Pivot

BCU Basic Set Up

Active Pump 

(3)

Active GPO 

(1)

NEUTRAL

Pump

GPO

Earth Pump

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.

3

. 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

3

3

4

5

Hydronic Systems

Hydronic Manual

Project Number 

N/A

Drawn By 

Pivot Hydronics

Checked By 

Pivot Hydronics

Date 

  24/9/16

A- 7.00

  Sheet Number  

7

   REV   

-

Pivot Stove and Heating

 

 

   *NOT TO SCALE*

Notes:

Sensor Tee Provision 

For Field Pump

Summary of Contents for Hydronic

Page 1: ...Pivot Stove Hydronic Installation Guide...

Page 2: ...ves that will isolate or restrict the flow to be installed Minimum 1 copper to be used between the header tank and appliance Flow Line going into the header tank is to be submerged below the water lin...

Page 3: ......

Page 4: ......

Page 5: ...house 5 Overflow vent pipe to be drained off the roof externally in copper 6 Field pump thermostat to activate on at 65 degrees 7 Field pump to be 8 Field pump to be installed above BCU and electrical...

Page 6: ...oiler to be activated see page 5 Re circulation pump to be wired directly to gasogen to be activated see page 6 Buffer Tank 400ltr 7 Immersion thermostat to activate field pump on at 70 degrees 8 Seco...

Page 7: ...off on the flow line above the location of the sensor tee and BCU yet below the swing check valve Pump is to be fitted with isolation ball valve unions to allow the pump to be isolated for servicing a...

Page 8: ...thermostat s One thermostat to trigger the pump to turn ON at 15 C The other thermostat to turn the pump OFF at 55 C allowing a consistent circulation between the appliance and the BCU BCU is to be fi...

Page 9: ......

Page 10: ...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 tur...

Page 11: ...de on the constant setting as indicated 3 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 BC...

Page 12: ...LHS and is fully open to the desired temperature Optional Thermostatic heads are to be fitted on the LHS in replacement for the cap on the valve Manifold Pipe Between the appliance and the manifold t...

Page 13: ...eld yet as close as possible to the manifold servicing the In Slab Pipe The pipe used for the In Slab circuit is recommended to be 16mm oxygen barrier pipe work No more than 100m of pipe per circuit i...

Page 14: ...CU or pump tee off This will reduce back flow 3 Domestic cold water inlet to lead coil 4 Domestic hot water lead to house 5 6 Both pumps are to be activated at the same temerature 6 Field pump thermos...

Page 15: ...er is evident then lock off and begin the next line Use a bowl or cup to catch any water that bubbles out this water may be black in colour and could stain any surface contacted As soon as air bubbles...

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