Pivot Stove & Heating Hydronic User manual

Pivot Stove
Hydronic
Installation
Guide

Install Location
•When installing the header tank - install directly above the appliance.
•There needs to be a continual rise between the appliance and the header tank.
Spill Tray
•Both formats Header Tank & Hot Water Service, spill tray is a mandatory
requirement.
Pipe Flow & Return
•From the appliance, YOU CAN NOT RESTRICT the pipe size leaving the appliance.
•The flow & return pipe work should always be installed on a rise to allow the water to
thermosiphon
•Note that on the flow line (no pumps or valves) 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 line to avoid
oxidization if boiling occurs.
•Recommended to lag copper with Armaflex
Connection To The Appliance
•The connection between the Appliance and copper should always be made with
“Hemp & Paste”
Water Level In Header Tank
•The water level is recommended in the header tank to be filled to 40% capacity.
•Require ½” cold water supply.
Header Tank
•Flow to be 40mm below water level
•Flow line 25mm min used
•Drip tray required
•Cold inlet feed required
•Drain point required
•Header tank must be 40% full

Hydronic Systems
Hydronic Manual
Project Number N/A
Drawn By Pivot Hydronics
Checked By Pivot Hydronics
Date 24/9/16
A- 3.00
Sheet Number 3
REV -
Pivot Stove and Heating
*NOT TO SCALE*
Notes:
Check valve
Field Pump
Manifolds
Radiator
Solar / Radiator Set Up 1. Flow to enter in side of tank,
on rise at all times.
2. Return line to be installed
below tank, on gradient at all
times
3. Domestic cold water inlet to
feed coil.
4. Domestic hot water lead to
house.
5. Overow 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 electricals, are
to be facing upwards.
9 & 10. Flow and return
manifolds to be installed
horizontally at all times.
11. Flow and return manifolds
to be installed horizontally at all
times.
12. Hot Water System ow on
top and return on bottom.
Radiator
Stove Inlet 1
4 5
3
2
Stove outlet
13
10
11
12
13
BCU on
BCU off
Pump
6
7
8
6 7 8
Right Angle Flow
Valve
Right Angle
Return Lock
Shield
Thermostat Wiring
Domestic Water
Outlet Overow Domestic Water
Inlet

Hydronic Systems
Hydronic Manual
Project Number N/A
Drawn By Pivot Hydronics
Checked By Pivot Hydronics
Date 24/9/16
A- 5.00
Sheet Number 5
REV -
Pivot Stove and Heating
*NOT TO SCALE*
Notes:
Gasication System 1. Flow to enter in side of tank.
2. Return line to be installed
below tank
3. Domestic cold water inlet to
lead coil.
4. Field pump to be wired
directly into gasogen boiler 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 eld pump on at 70
degrees.
8. Secondary eld pump to
service hydronics.
9. Thermostat to call pump off
when return temperature is
reached at 45 degrees.
10. Expansion tank & auto ll
system kit to be installed on
return line.
11. Manifold arrangement.
Header Tank
Feed Point
1
Check valve 3
4
Field Pump
5
Field Pump
6
7
8
9
10
11
79
2
Right Angle Flow
Valve
Right Angle
Return Lock
Shield
Thermostat Wiring

Installation of BCU, Pump and check valve
Installation of BCU – Boiler Control Unit
•When installing the BCU, recommended 300mm (minimum) higher than the
appliance to allow for thermosiphoning.
•Ensure that pump is fitted with 2 sensor tee’s and 2 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.
Installation of Pump in Field
•Note the field pump is recommended to branch 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 and general maintenance.
•The correct installation of the pump is to fit the electrical board in a position that it
is not facing below the flow line.
Adjustments on ensuring this is achieved can be found in the operational manual of the
pump.
•To be installed horizontally.
•As part of the commissioning, ensure that the pump is correctly bled – Refer to the
operation manual.
Check Valve
•Install check valve 200mm below header tank on flow line
•Ensure that the check valve is after the pump has been teed off

Installation of Thermostat, Sensor Tee and Check Valve
Sensor Tee
•Ensure that the Sensor Tee is fitted on the flow line between the appliance and the
header tank.
•This is to be fitted as close to appliance to allow an accurate gauge of the water
temperature. Follow wiring diagram.
•This should be fitted with “Hemp & Paste”
Thermostat - Refer to wiring diagram
•The thermostat is to be connected to the pump – the pump activated to turn on when
the set temperature is reached.
•Ensure that pump is fitted with 2 sensor tee’s and 2 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 fitted with a thermostat that is activated to come on at 15°C. Follow
wiring diagram.
•The secondary pump in the field, which is branched off the flow line, is ideally set to
65°C to begin with – this can be increased or lowered depending on the application.
•The goal is to pull the water off before boil point in the header tank.
Check Valve
•Check valve to be installed above pump on the flow line, minimum 200mm below
header tank.
This will reduce thermosiphoning, ensuring heat is pulled off the boiler and not the header
tank.

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 ow 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

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 ow 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

Radiators – Manifold & Pipe
Radiators
•When installing the radiators the recommended size for noggins is 90mm or 40mm.
This will ensure that you have suitable fixings for your brackets.
•Bracket locations – refer to manufactures design
•The flow line is recommended fitted on the left hand side of the radiator, at the
lowest fixing.
Fixing Kit
•When fitting off the radiator, ensure that the lock shield is fitted on the return line
(RHS) and is fully opened (turned anticlockwise).
•When fitting off the radiators, ensure the right angle valve fitted on the (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, this should be all installed in copper.
•From the manifold onwards 16mm multilayered insulated pexal pipe should be
installed to the radiators.
•Ensure the flow line runs to the top ports and the return line runs the lower ports.
•The auto bleed should be fitted on RHS flow ports
•Drain point fitted to the return port on the LHS
•The manifold is recommended to be fitted horizontally and after the pump in the
field.
•The distance from the manifold to the secondary pump in the field is recommended
to be no more than 15mm away to avoid heat loss.

In-slab – Mixing kit / Pipe / Manifold
Mixing Kit (reference 2)
All In-Slab designs should incorporate a BCU
Mixing kit to be fitted with “Hemp & Paste”
Thermostat fitted on the mixing kit is recommended at maximum to be set at 50°C
This should be fitted after the secondary pump in the field 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 is recommended.
This is broken down to a maximum of 50m on the flow and 50m return lines.
No joins or bends to be fitted at any point in the circuit.
This can be installed either tied to the mesh or to the insulated panel (Depending on the
set up, refer to manufactures specification)

Hydronic Systems
Hydronic Manual
Project Number N/A
Drawn By Pivot Hydronics
Checked By Pivot Hydronics
Date 24/9/16
A- 6.00
Sheet Number 6
REV -
Pivot Stove and Heating
*NOT TO SCALE*
Notes:
Check valve
Field Pump
Manifolds
Radiator
In-slab / Radiator Set Up 1. Flow to enter in side of tank.
2. Check valve to be installed as
recommended on the ow line
of the BCU or pump tee off. This
will reduce back ow.
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 thermostat to
activate on at 65 degrees.
7. Field pump to be ***
8 & 9. Field pump thermostat to
activate on at 65 degrees.
10. Radiator ow
11. Radiator return
12. In-slab manifold ow
13. In-slab manifold return
1
2
3
4
5
6
8
9
7
12
13
10
11
BCU on
BCU off
Pump
BCU on
3
4
5 & 6
Right Angle Flow
Valve
Right Angle
Return Lock
Shield
Thermostat Wiring
Header Tank
Feed Point

Hydronic Heating Installation Commissioning Procedure
(Note that this is to be completed after every installation of any appliance)
Step 1. Fill & Test for leaks
After the installation is complete and radiators fitted off
Fill the system completely, check over all pipe work and ensure that there are no leaks
and the system is sound.
Step 1. Bleeding the air
After the fill test is complete and no leaks found. To correctly bleed each radiator, shut
off all isolation valves on the manifold (cold circuit) to restrict flow to the radiators. This
will isolate each line, The same can be done for the In-Slab after pressure testing.
Open up the furthest line, which is generally fitted on the LHS of the manifold.
Aur will build up at the top of each radiator. Using your bleed key, bleed the system
until water 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 cease, turn off the air vent.
After this is completed on all circuits, open all valves to allow the system to balance.
Step 3. Adding Inhibitor & Test Dose
Isolate one radiator and fit the inhibitor dose point to the top RHS fitting as per the
instructions on the kit.
Add the inhibitor as instructed and check the dosage is sufficient.
Step 4. System Over View & Initial Light
Run through the functions on the appliance and cover what is included in general
maintenance to run the system.
Explain the purpose of the thermostat and how this can be changed if boiling occurs if
any circuits are isolated in future.
Explain how the radiator valves can be adjusted and if fitted, the thermostatic head.
Explain that the system will make NOISE from expansion.
Light the stove and explain the dampening systems.