16
310528
Installation
Checking Resistance
WARNING
ELECTRIC SHOCK HAZARD
Do not open the electrical control panel,
unless you are a trained professional.
Before opening the control panel, make sure that
all power has been removed from the control panel.
Sensor Resistance Checks
WARNING
ELECTROCUTION HAZARD
To reduce risk of injury or damage to
equipment, conduct these electrical
checks with the main disconnect OFF.
The supply unit includes either three or four heat sen-
sors and controllers for each heated zone. To check
sensor resistance:
1. Make sure the power is off and that the disconnect
switch is in the OFF position.
2. Make electrical resistance checks for the compo-
nents. Refer to
Schematics
on page 67 for wiring
diagram information.
3. Replace any parts whose resistance readings do
not comply with the ranges listed in the chart
below.
NOTE:
Check resistance at ambient room tempera-
ture (63
_
– 77
_
F).
3-Zone RTD Sensors
Zone Component Terminals Value Range
1
Follower
1311 &
1321
107 – 109 ohms
2
Dispense
Hose
1531 &
1541
97.4 –
102.8 ohms
3
Dispense
Gun
1601 &
1611
97.4 –
102.8 ohms
4-Zone RTD Sensors
Zone Component Terminals Value Range
1
Follower
1311 &
1321
107 – 109 ohms
2
Dispense
Hose
1531 &
1541
97.4 –
102.8 ohms
3
Dispense
Gun
1601 &
1611
97.4 –
102.8 ohms
4
Pump
1381 &
1391
97.4 –
102.8 ohms
Содержание 918334
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Страница 37: ...310528 37 Service Fig 11 To Ram Junction Box 3L1 3L2 3L3 5L1 5L2 5L3 480 575 Volt Ram Plate Assembly Wiring...
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Страница 65: ...310528 65 Parts Models 617349 480 VAC and 617485 240 VAC 4 zone Electrical Control Panel exterior...
Страница 67: ...310528 67 Schematics Electrical Control Panel and Wiring Parts and Description 617300 Page 1 9604A...
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Страница 84: ...84 310528 Appendix New Style Temperature Controller Settings List...