Installation Integral Boilers | Aarrow Fires Tf 70 guide

INSTALLATION

INTEGRAL BOILERS

Integral boilers should be connected, with flow and return connection of any circuit on opposite sides of the appliance, (cross flowed), to an indirect hot water tank/system, adding Fernox or similar corrosion inhibitor to prevent corrosion and the formation of lime scale.

It is also essential that the return water temperature remains in excess of 45 degrees centigrade (Celsius). The gravity return should be fitted with a thermostat, which will activate a cut-out on the radiator circulating pump, should the temperature drop below this level.

Connect pipe work to the boiler unit.

The connected pipes should be screwed to a maximum depth of 15mm from the face of the tapping, (female 1" B.S.R). Steel integral boilers should be connected to an indirect hot water tank system.

Note: the flow and return sections of any circuit must always be opposite of appliance. Remember to incorporate a draining plug/tap at the lowest point to facilitate drainage & flushing.

Warning: if a pipe stat is not fitted then cold water corrosion can occur.

FAILURE TO COMPLY WITH THESE REQUIREMENTS WILL INVALIDATE THE GUARANTEE

CHECKING THE THERMOSTAT AND PRESETTING TO THE CORRECT DAMPER PRESSURES

PLEASE NOTE: THE THERMOSTAT HAS BEEN FITTED AND CORRECTLY SET AT MANUFACTURE. SO THE FOLLOWING PROCEDURES WILL ONLY BE REQUIRED WHEN REPLACING OR RE SETTING THE THERMOSTAT.

To fit/remove thermostat on Tf models

For fitting/removal of thermostat on Ti models please see page 20.

1.Pull thermostat knob off of the shaft.

2.Remove access cover plate, use a No. 2 Pozi screw driver and remove the 2no. CSK M5 screws.

3.Remove the 2no. M5 screws that secure the thermostat housing. The thermostat is now free, and you will be able to remove the spacer bracket.

4.On the rear of the stove, remove the thermostat sensor from its pocket and push this carefully through the hole in the corner cut-out of the stove. Take care not to kink the copper tube.

5.Withdraw the thermostat from the apperture.

6.If you are fitting a new thermostat you will need to remove the knob extension shaft. Use a 7mm spanner. To remove the M4 Grub screw.

7.Re-fit is the reverse of the above process. Please ensure the spacer bracket is secured beneath the thermostat as in point 3.

See below if adjustment is required.

ADJUSTMENT OF THE

THERMOSTAT

However, it is advisable to check the cold setting distance prior to lighting a fire in it. With the control set at maximum there should be a gap of 23mm between the fire and the edge of the damper plate furthest from the control shaft. If this is not the case adjust by slackening off the lock nut and turning the adjusting nut on the damper plate. When the cold setting distance has been correctly set re-tighten the lock nut.

Stratford Tf & Ti Boiler Multifuel Stoves