S1800 Marine Model Ice Machines – Service Manual - Manitowoc Ice
S1800 Marine Model Ice Machines – Service Manual - Manitowoc Ice
S1800 Marine Model Ice Machines – Service Manual - Manitowoc Ice
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Electrical System Section 6<br />
Freeze Sequence<br />
3. PRE-CHILL<br />
To pre-chill the evaporator, the<br />
compressor runs for 30 seconds (60<br />
seconds initial cycle) prior to water<br />
flow.<br />
The water fill valve remains on until<br />
the water level probe is satisfied.<br />
L1<br />
(88)<br />
Ground<br />
(89)<br />
High<br />
Pressure<br />
Cutout<br />
(42)<br />
Self-Contained — Pre-Chill<br />
Table 6-3. Self-Contained <strong>Model</strong>s<br />
3. Pre-Chill (60 Seconds Initial Cycle - 30 Seconds thereafter)<br />
Toggle Switch ICE<br />
Bin Switch<br />
Control Board Relays<br />
Closed<br />
#1 Water Pump OFF<br />
#2 Harvest Valve (Left) OFF<br />
#3 Harvest Valve (Right) OFF (When Used)<br />
#4 Air Compressor OFF (When Used)<br />
#5 Water Inlet Valve On<br />
#6 Water Dump Valve OFF<br />
#7 Contactor Coil Closed / ON<br />
#7A Compressor ON<br />
#7B Condenser Fan Motor May Cycle ON / OFF<br />
Safety Controls (Which could stop ice machine operation)<br />
High Pressure Cut-Out Closed<br />
Main Fuse (On Control Board) Closed<br />
(55)<br />
<strong>Ice</strong> Thickness<br />
Probe<br />
Water Level Probe<br />
Contactor<br />
Contacts<br />
(Black)<br />
L1<br />
Overload<br />
(51) (85)<br />
Control Board<br />
(2)<br />
(6)<br />
(5)<br />
(1)<br />
(7)<br />
(4)<br />
Trans.<br />
Fuse (7a)<br />
Water Valve<br />
(21)<br />
(22)<br />
Harvest Valve<br />
(77)<br />
(80)<br />
SV3137-3<br />
6-4 Part Number 80-1634-3<br />
Low DC<br />
Voltage<br />
Plug<br />
(Red)<br />
Fan Cycle<br />
Control<br />
(9)<br />
L2<br />
(25)<br />
(8)<br />
Compressor<br />
(86)<br />
(Yellow)<br />
(61)<br />
(26)<br />
(1)<br />
(2)<br />
(20)<br />
(60)<br />
(57)<br />
(6)<br />
(46)<br />
(58)<br />
Dump Valve<br />
(76)<br />
(81)<br />
Water Pump<br />
(98)<br />
(59)<br />
Contactor Coil<br />
(56)<br />
Air Compressor<br />
Bin Switch<br />
PTCR<br />
Fan Motor<br />
Clean<br />
OFF<br />
ICE<br />
Run Capacitor<br />
Terminates at<br />
Pin Connection<br />
(74)<br />
Run Capacitor<br />
(45)<br />
(50)<br />
(99)<br />
L2 or N<br />
(75)
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