Lochinvar EFW 85 Installation, Commissioning, User And Maintenance Instructions page 59

Examples D and E maximum pipe lengths
Example D (C33)
water heater type →
Diameter concentric pipe
Concentric roof terminal
Maximum pipe length
includes: 2 bends 90°
2 bends 45°
roof terminal
Example E (C13)
water heater type →
Diameter concentric pipe
Concentric wall terminal
Maximum pipe length
includes: 1 bend 90°
wall terminal
EXAMPLE: D
C33
EFW 85
[mm] 100/150
[mm] 100/150
[m]
2.5
EFW 85
[mm] 100/150
[mm] 100/150
[m]
10.2
E93.1804.014
CONCENTRIC
ROOF TERMINAL
EXAMPLE: E
C13
EFW 105 EFW 125
NOT NOT
POSSIBLE POSSIBLE
use less bends use less bends
and/or pipe and/or pipe
length, or larger length, or larger
pipe diameter. pipe diameter.
EFW 105 EFW 125
100/150 100/150
100/150 100/150
5.4 1.5
CONCENTRIC
WALL TERMINAL
EFW 155
NOT
POSSIBLE
use less bends
and/or pipe
length, or larger
pipe diameter.
EFW 155
NOT
POSSIBLE
use less bends
and/or pipe
length, or larger
pipe diameter.
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