Vaillant PFGHRD 60, PFGHRD 100 Installation Instructions Manual
Installation instructions
For the installer
GB, IE
Installation instructions
PFGHRD 60/100
Passive Flue Gas Heat Recovery Device
Vaillant PFGHRD A5 - 12/12
- 2 -
Explanation of symbols
Symbol that denotes danger:
- Imminent danger to life
- Risk of severe personal injury
- Risk of minor personal injury
The PFGHRD is an integral part of the ue system
and as such should be tted in accordance with
the manufacturer's ue instructions.
Product description
The PFGHRD (Passive Flue Gas Heat Recovery
Device) is designed as a complimentary energy
saving system that can be connected to a
condensing combination boiler. This appliance
recovers latent energy from ue gases produced
by condensing combination boilers. The energy
from ue gases is used to preheat incoming
domestic cold water. The PFGHRD heat exchanger
increases domestic hot water eciency and
therefore reduces gas consumption, CO
2
emissions and waste of sanitary water.
The PFGHRD is included in SAP Appendix Q, under
Passive Flue Gas Heat Recovery Devices.
Vaillant - PFGHRD 60/100
Contents of package
1. PFGHRD unit
2. Support bracket
3. Wall fixing screws
4. Unit fixing screws
5. Installation manual
6. SAP label (attached to product)
7. Wall template
8. Flue anchor bracket (attached to product)
Technical information
DHW system
Max. water pressure
Min. operating pressure
10.0* bar
0.2 bar
* Use a pressurereducing device
to achieve this, if
necessary.
Connections
Water connections 15 mm
General dimensions
Height
Width
Depth
276 mm
376 mm
262 mm
Weights
Empty
Full
6.6 kg
9.4 kg
Boiler applications
Condensing boilers only ecoTEC plus
ecoTEC pro
Flue Connections (60/100)
Top
Bottom
60 - 100 mm
60 - 100 mm
General
DHW Heat exchanger
Inner casing
Outer casing
Water content
Stainless steel
PP According to
EN 14471-1
ABS
2.8 litres
a
INSTALLATION
Vaillant PFGHRD A5 - 12/12
- 3 -
Maximum flue length
ecoTEC exclusive 832/838
Vertical
Horizontal
3 m
1 m + elbow
Maximum flue length
ecoTEC plus 824/pro 24
Vertical
Horizontal
10 m
6 m + elbow
Maximum flue length
ecoTEC plus 831/pro 28
Vertical
Horizontal
7 m
3 m + elbow
Maximum flue length
ecoTEC plus 837/937
Vertical
Horizontal
5 m
2 m + elbow
(Further ue lengths/bends may be used, but a loss in output of
1% is incurred for every additional metre).
General installation conditions
Assess the overall height of the installation
including PFGHRD and choose the appropriate
flue system arrangement (see 3. Installation
diagram).
In situations where the water pressure exceeds
10 bar, it should be reduced to the permitted
water pressure.
To allow pipework to be installed behind the
boiler we recommend the use of the 308650
spacing frame.
No requirement for expansion vessel or mixing
valve, see Commissioning page 7.
PFGHRD Installation
1. The hot and cold water pipes are positioned
at the bottom of the PFGHRD near the water
connections.
Inlet
Cold mains water
Outlet
Pre-heated water
NOTE: No soldering of joints should be
undertaken in close vicinity to the PFGHRD or
boiler as this may cause damage.
2. Dimensions.
A
Distance from the flue outlet centre line to
inside wall face, A = 130mm, if using a spacing
frame, A = XXmm.
INSTALLATION
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