Common Flue Systems; Flue Terminal Guarding; Condensate Drain; C63 Certified Flue Systems - Lochinvar EcoForce EF80 Installation, Commissioning, User And Maintenance Instructions

This appliance can operate on a U-Duct common flue system. The maximum lengths for the interconnecting flue can be calculated using the
information in Section 8.8.2:
Concrete components of the U-Duct must meet the requirements of BS EN 1858
Flue Gas Mass Rate (G20) 96%
Flue Gas Mass Rate (G20) 25%
Flue Gas Mass Rate (G31) 96%
Flue Gas Mass Rate (G31) 25%
8.12.1 Flue gas mass rates
C F S
OMMON LUE YSTEMS
The EF Water heater can be installed on to a common flue system if required. The common flue system should be sized to operate under a
negative pressure of -0.03 to -0.10 mbar.
If a positive pressure common flue system is to be used, a proprietary recirculation prevention device must be installed at the flue spigot of
each Water heater to prevent products of combustion from re-entering the plant room.
A cascaded common flue system which operates on a positive pressure is available from Lochinvar Limited. Further details can be found in
the Cascade Flue Systems guide, available from www.lochinvar.Limited.uk.
F T G
LUE ERMINAL UARDING
If a Vertical flue terminal is to be fitted less than 2 metres from ground level or in a location where it can be touched from a window, door or
balcony, a terminal guard must be fitted.
The terminal guard should be positioned centrally around the terminal and secured using appropriate wall fixings.
C D
ONDENSATE RAIN
For flue runs of less than 6 metres, provided that the flue system rises at an angle of at least 3 (50mm per metre), no additional condensate
drain will be required. Failure to provide an adequate rise in the flue system may lead to pooling of condensate which may lead to premature
failure of the flue system.
If the flue run is greater than 6 metres, it is recommended that an inline condensate drain and trap be fitted. The condensate trap should be
connected to a suitable drainage system as described in Section 6.2
C63 C F
ERTIFIED LUE
In general Water heaters are certified with their own purpose supplied Concentric or Twin Pipe flue systems, C63 certified appliances allow
the installer to use other flue systems when installing the Water heater however they must be of a suitable minimum standard as per Table
8.16.1
CE string
flue gas
material
min. eis PP EN 14471
min. eis RVS EN 1856-1
8.16.1 C63 flue system specification
Material Water heater
SS EF80
SS EF100-EF120
SS EF150-EF180
PP EF80-EF80
PP EF100-EF120
PP EF150-EF180
Aluminium flue pipe must not be used on this appliance as it may lead to premature failure of the heat exchanger
and will invalidate the warranty.
(g/sec)
(g/sec)
(g/sec)
(g/sec)
S
YSTEMS
T120 P1 W
T120 P1 W
d
nom mm
80
100
130
80
100
130
EF 58 EF80
22.6 29.8
5.7 7.5
23.2 30.6
5.8 7.7
1
1 L20040
D
outside mm
80 +0,3/ -0,7
100 +0,3/ -0,7
130 +0,3/ -0,7
80 +0,6/ -0,6
100 +0,6/ -0,6
130 +0,9/ -0,9
EF100 EF120
37.1 45.1
9.3 11.3
38.8 46.2
9.7 11.6
O 30 I of E
O 40
d
inside mm
81 +0,3/ -0,3
101 +0,3/ -0,3
131 +0,5/ -0,5
EF150 EF180
55.6 67.3
13.9 16.8
57.0 69.0
14.3 17.3
C/E L
L
insert mm
50 +2/ -2
50 +2/ -2
50 +2/ -2
50 +20/ -2
50 +20/ -2
50 +20/ -2
38