Specifications

SECTION IV
MAINTENANCE / SERVICE
(6) Hold screw (1) and loosen nut (2). Turn termi-
nals out of the way.
(7) Install assembled elbow (4) and vent solenoid
(3) on tee (5).
(8) Turn terminals of vent solenoid (3) so wires will
connect easily to vent solenoid.
(9) Hold screw (1) and tighten nut (2).
EQUIPMENT ALERT
When installing the vent solenoid and the
fill solenoid, the side of the solenoids
marked "IN" need to be connected to the pressure
lines. Reversing solenoids will cause system failure.
(10) Install spacer (12A, Figure 4-12) and manifold
assembly (12) on base (13) and secure using
two screws (11).
(11) Connect three tubes (5 thru 7) to elbows (8
thru 10).
(12) Connect two wires (2) to terminals (4).
(13) Connect two wires (1) to terminals (3).
(14) Install back panel (Refer to para 4.5).
(15) Refill condensing tank with distilled water.
4.13 Control PC Board Removal /
Installation
A. Removal
(1) Remove right hand side panel (Refer to
para 4.3).
(2) Disconnect pressure tube (1, Figure 4-14) from
pressure sensor (2).
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 (3) to disconnect
instead of three.
(3) Disconnect two / three wire harnesses (3) from
two / three connectors (4).
(4) Tag and disconnect two wires (5) from terminals
(6).
(5) Tag and disconnect two wires (7) from
terminals (8).
(6) Disconnect ribbon connector (9) from connec-
tor (10).
(7) Tag and disconnect neutral wire (11) from
terminal (12).
(8) Tag and disconnect hot wire (13) from termi- nal
(14).
(9) Disconnect printer cable (15) from connec- tor
(16).
(10) Disconnect door switch harness (17) from
connector (18).
M9 / M11 only
(11) Tag and disconnect two wires (19) from pulse
solenoid terminals (20).
(12) Disconnect heater element wire (21) from
connector (22).
NOTE
Positions of locknuts (1) and screws (2) are reversed
on newer units.
(13) Remove two locknuts (1, Figure 4-15), screws
(2), and control PC board (3) and control PC
board bracket (4) as an assembly from
base (5).
NOTE
Units prior to serial number CZ1110/OM1000 have the
ground wire attached to the control PC board bracket.
When nut (6), starwasher (7), and screw (8) are
removed, ground wire will also be removed.
(14) Remove nut (6), starwasher (7), and screw (8)
from control PC board bracket (4).
(15) Turn three standoff screws (9) 1/4 turn in the
counter-clockwise direction and remove control
PC board (3) and insulator (10) from control PC
board bracket (4).
© Midmark Corporation 2002 SF-1827 Page 4-10 Printed in U.S.A.
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