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CONTENTS
Air Supply ...................................................................... 6
Boiler Dimensions/Clearances .................................... 5
Boiler Exploded Diagram ........................................... 11
Commissioning and Testing ...................................... 29
Electrical Connections ............................................... 27
Electrical Diagrams .................................................... 28
Electrical Supply Reqirements ................................... 8
Extension Ducts - Fitting ........................................... 24
Fault Finding ............................................................... 47
Flow Wiring Diagram .................................................. 28
Rear outlet .............................................................. 14
Side outlet .............................................................. 19
Flue Installation Reqirements ...................................... 7
Regulations, 1994 ......................................................... 6
Gas Supply Reqirements ............................................. 7
Health & Safety Document No 635 .............................. 6
Initial Lighting ............................................................. 30
Installation ................................................................... 12
Mandatory Requirements ............................................. 6
Sealed System Requirements ...................................... 8
Servicing ...................................................................... 32
Short List of Parts ....................................................... 58
Terminal Guards ............................................................ 7
Thermostatic Radiator valves ...................................... 8
Water and Systems ....................................................... 7
Water Connections ....................................................... 5
Wiring Diagrams .......................................................... 28
Response FF80
- Installation
INTRODUCTION
Response FF80 are wall mounted, low water content, balanced
flue combination gas boilers of type C
gas group I2
H.
Central heating (CH) output modulates between 11.7 kW
(40,000 Btu/h) minimum and 17.6 kW (60,000 Btu/h) maximum.
Instantaneous domestic hot water (DHW) output is also fully
modulating, with a maximum of 23.4kW (80,000 Btu/h).
The boiler is suitable for connection to fully pumped, pressurised
sealed water systems ONLY.
A system bypass is only required when TRV's are fitted to all
radiators (see Frame 5).
Boilers are supplied fully assembled and, being a 'tube-within-
tube' design, require no diverter valve or domestic hot water
calorifier.
A circulating pump, pressure gauge, safety valve and expansion
vessels for both central heating (CH) and domestic hot water
(DHW) are provided.
The CH flow temperature is controlled by an electronic
thermostat. In DHW mode the boiler modulates to sustain a
nominal adjustable water flow temperature of 60
The boiler casing is of white painted mild steel with a drop-down
controls access door.
The boiler temperature control is located behind the controls
access door.
The heat exchanger is made of copper and cast iron.
The system pipework must include drain cocks in appropriate
places. Pipework may be taken downwards or upwards behind
the boiler (using the stand-off channels).
OPTIONAL EXTRA KITS
Programmer Kit
- fits neatly within the casing. Separate fitting
instructions are included with the kit. Note. If using an alternative
programmer read Frame 42 first.
Extension Ducts -
up to 3m (120")
90
Elbow kit (Max. of 2 / installation).
o
Roof Flue Kit -
for vertical flue connection
Vertex flue kit.
OPERATION
With no call for CH the boiler fires only when DHW is drawn off.
When there is a call for CH, the heating system is supplied at
the selected temperature until DHW is drawn off. The full output
of the boiler is then directed by the automatic switching off of the
circulation pump to heat the inner coils and supply a maximum
draw-off of :
Response FF80
9.6 l/min(2.1 gpm) at 35 degree rise.
The nominal DHW temperature is 60
when the boiler has been on for central heating may be hotter
than this, for a short period of time.
GENERAL
intended for use with
13
o
C.
o
C, but water drawn off
5
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