GESTRA BK 15 - Page 14

14
Installing Thermovit regulator
To fit the Thermovit regulator proceed as follows:
 Apply heat-resistant lubricant to the following
surfaces:
 all threads
 the seating surface of the nozzle insert
 Screw the Thermovit regulator (7) into the body
(11) with a torque of 140 Nm.
 Place the guide ring (6) on the Thermovit
regulator.
Attention!
The equipment may leak if the body gasket
is damaged.

Make sure the cover is not tilted when
placed on the body.
The manufacturer recommends using a new body
gasket whenever you re-attach the cover.
 Clean the sealing surfaces of the cover (4) and
body (11).
 Coat the threads of the hexagon socket head
bolts and the sealing surfaces with temperature-
resistant lubricant.
The lubricant must have the same properties as
OKS
®
217.
 If necessary, place a new body gasket (9) on the
body.
 Place the cover (4) on the body (11).
 Insert the 4 bolts (14) through the cover into the
body.
 Screw the 4 nuts (13) onto the bolts.
 Tighten the bolts crosswise to a torque of
45 Nm.
 Set the opening temperature, as described on
page
10 ff.