IM-P157-38
CMGT Issue 4
22
Steam/Water Mixing Stations (MkII valves - 2002 onwards) Safety and Operation
IMPORTANT NOTE:
The TCO1 must be installed with the end marked
'INLET' connected to the mixing valve and the
end marked 'OUTLET' to the 'T' piece (K), see
Figure 8. (These markings are stamped onto the
hexagon end connections). The TCO1 is a safety
device, if it is installed in reverse it will never
be able to operate.
To connect the thermometer (
E
), (see Figure 8),
screw the reducing bush (
M
) into the top of the 'T'
piece (
K
); push the thermometer (
E
) into the pocket
(
L
) and lock in place with the grub screw; tighten
the pocket (
L
) into the reducing bush (
M
). The hose
should be connected to the outlet of the 'T' piece (
K
)
using the union on the hose. The hose may then be
coiled onto the hose rack (if used). If using a self-
retracting hose reel the hose will already be coiled
and attached to the thermometer 'T' piece (
K
) using
the hose union on its 2 m (6.5 ft) long connection
hose (supplied with the self-retracting hose reel).
The heavy duty gun is fixed to the
hose using the swivel coupling
(see Figures 9, 10 and 11)
The swivel coupling is connected to the hose as a
complete item. It must be separated into two pieces
so that the gun retaining can be correctly torqued
into the gun.
Fig. 9
Unscrew the retaining nut from the hose
tail using 1
5
/
16
" A/F and
7
/
8
" A/F spanners.
Apply PTFE or thread sealant to the male
thread of the retaining nut.
Fig. 10
Unscrew the gun from the retaining nut
using an
11
/
16
" A/F spanner on the spanner
flats of the retaining nut. Tighten to 50 N m
(37 lbf ft). On older
¾
" units insert a 12 mm
A/F hex. allen socket into the gun handle
to a torque of 50 N m (37 lbf ft).
Fig. 11
C onnec t the gun to the hose by
reassembling the two halves. Tighten to a
torque setting of 50 N m (37 lbf ft).
Fig. 8
E
M
L
K
INLET
OUTLET
Apply PTFE tape or sealant
Separate here
Gun retaining nut
1
5
/
16
" A/F spanner
7
/
8
" A/F spanner
Fig. 9
Fig. 10
Fig. 11
Hold with
7
/
8
" A/F spanner
Gun
Torque setting of 50 N m (37 lbf ft) using
1
5
/
16
" A/F spanner
Hose
Torque setting
50 N m
(37 lbf ft)
11
/
16
" A/F
Hose
