13
Fig. 3
Installation of STL and SSL pumps
TM
04 02
02 510
7
System vent
Cold-wa
ter supp
ly t
o
cylind
e
r,
min.
22 m
m
,
28 m
m
re
com
m
en
ded
Wa
te
r m
a
in
s
Shower outlet
250 mm (10 inches)
below water level
Fu
ll-bore
gat
e valve
Hot-water
cylinder
Surrey
flange
Cold-water
supply
min.
22 mm
230 V
switched spur
22 mm
service
gate
valves
Pump
Hot-water supply
Hot
Cold
Shower
valve
Supply to
another shower,
if required
Anti-scald valve
(optional)
min.
22 mm
Min. 2
me
tres
(6 f
t. 6
in.)
max. 1
0
m
e
tres (33
f
t)
su
pply
head
from
wat
e
r
le
ve
l to
p
u
mp su
ct
io
n
po
rt
(Except STL 2.0 CN)
Cold-water storage tank
of at least 50 gallon
capacity
Low-voltage
transformer
Exp
ansion pipe
Grundfos.bk Page 13 Wednesday, September 3, 2008 1:36 PM
