Specifications

SECTION IV
MAINTENANCE / SERVICE
4.9 Temperature Sensor Assembly
Removal / Installation
A. Removal
(1) Remove back panel (Refer to para 4.5).
NOTE
Units with old style control PC board with EPROM
version N or after or new style control PC board will
only have two wire harnesses to disconnect instead
of three.
(2) Disconnect two / three wire harnesses (1, Figure
4-8) from two / three terminals (2).
(3) Remove flex guard tubing (3) from two / three
wire harnesses (1).
(4) Remove temperature sensor assembly (4) from
pressure vessel (5).
B. Installation
(1) Coat threads of temperature sensor assembly
(4) with teflon tape.
(2) Install temperature sensor assembly (4) in
pressure vessel (5).
(3) Install flex guard tubing (3) on three wire
harnesses (1).
(4) Connect three wire harnesses (1) to three
terminals (2).
(5) Install back panel (Refer to para 4.5).
4.10 Pressure Vessel Water Level Sensor
Removal / Installation
A. Removal
(1) Remove back panel (Refer to para 4.5).
(2) Remove wire tray rack and tray plate (Refer to
para (4-17).
(3) Disconnect wire (1, Figure 4-9) from termi- nal
(2).
(4) Remove nut (3) and terminal (2) from level
sensor rod (4).
(5) Remove nut (5).
EQUIPMENT ALERT
Do not try to pull level sensor rod out of
back side of pressure vessel. Doing so
will damage level sensor rod.
(6) Push level sensor rod (4) thru fitting (6) and into
pressure vessel (7) and remove level sensor
rod.
(7) Remove spacer (8) from level sensor rod (4).
(8) Remove silicone tube (9) from fitting (6).
Discard silicone tube (9) and crimp (10).
(9) If damaged, remove fitting (6) from pressure
vessel (7).
B. Installation
(1) If removed, coat fitting (6) with teflon tape and
install fitting in pressure vessel (7).
(2) Install silicone tube (9) and spacer (8) on level
sensor rod (4).
© Midmark Corporation 2002 SF-1827 Page 4-6 Printed in U.S.A.
Figure 4-8. Temperature Sensor Assembly
Removal / Installation
MA2074-01
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