EZ-Temp Microprocessor Temperature Control — Instruction manual
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MNEZT 070615
Configurations
Carlin EZ-Temp components are available in the following configurations, allowing use
with existing wells in addition to EZ-Temp wells.
Surface-mount sensors are also available.
•
Control kits
EZ-Temp controls mount to a standard 4x4 J-box or can be panel mounted.
Control kits include the control only.
•
Well kits
Well kits include a well (item 1), rubber sensor retainer (item 3), retainer
washer (item 4), jam nut (item 5), and J-box lock washer (item 8).
•
Sensor Kits
Sensor kits include only the sensor (item 2). Sensors are available in single
and dual configurations (two sensors in the same assembly). For controls
that use multiple sensors, obtain separate sensor kits or a sensor kit with a
dual sensor.
Install sensor(s)
To install a new immersion well:
1. Turn off power to the appliance and close isolation valves.
2. Follow appliance instructions to drain the appliance so water line is below
the insertion tapping.
3. Remove existing well and sensor. Apply a small amount of pipe dope to the
new well and secure in tapping.
4. Insert EZ-Temp sensor into well and secure sensor in place as described in
the following.
5. Refill appliance with water, following appliance manual procedures.
When routing sensor wires, avoid sharp edges and use strain
relief bushings at penetrations to prevent movement or electrical
shorting of the sensor. Sensor wires are not low voltage, and must
be routed in conduit.
Configuration A: Sensor and well only
1. Insert the sensor into well (1) until the sensor (2) tip bottoms in the well
socket.
2. EZ-Temp well: Slide the rubber retainer (3) over the sensor wires until it
firmly contacts the sensor casing. Slide the retainer washer (4) and the jam
nut (5) over the wires. Thread the jam nut into the well until snug.
3. Existing well: Use the retainer spring (11) with rubber retainer (12) to seat
the sensor in the well.
Configuration B: Sensor, EZ-Temp well and J-box
1. Insert the sensor into well (1) until the sensor (2) tip bottoms in the well
socket.
2. Slide the rubber retainer (3) over the sensor wires until it firmly contacts the
sensor casing. Slide the retainer washer (4) over the wires.
3. Slide the lock washer (8), J-box (7), and jam nut (5) over the wires.
4. Thread the jam nut into the well and tighten to secure the J-box and sensor
in place.
Configuration C: Sensor, Existing well and J-box
1. Remove the center knock-out from one side of the J-box (7).
2. Position the well clamp (10) over the end of the well (9) (sensor not yet
installed) and slide the well clamp (10) toward the side of the J-box (7)
engaging the keyslot opening with the well undercut.
3. Position the flat washer (12) over the open knockout and install the tensioning
screw (13) through the flat washer (12) and into the well clamp (10), tighten.
4. Insert the sensor into well (9) until the sensor (2) tip bottoms in the well
socket.
5. Slide the rubber retainer (3) over the sensor wires until it is near the well (9).
6. Assemble retainer spring (11) about retainer (3) then use retainer spring/
retainer to bottom the sensor in the well. The retainer spring will lock in the
well.
Mount the control
1. Insert sensor wires into the labelled connections on the back of the control.
2. Attach the control to the 4x4 J-box or panel mount, as desired.
Wire the control
1. Control wiring (including sensor wires) must be routed through conduit or
electrical enclosures. Follow all applicable codes and the appliance manual.
2. Follow the burner and appliance wiring diagrams to connect the control(s)
into the appliance limit circuit.
3. For specific applications, contact your Carlin supplier for further information.
Set the control
1. Follow the appliance manual to set the correct limit temperature for the
appliance. To adjust the EZ-Temp control:
• Insert a screwdriver into the setting slot and rotate until the indicator points
to the desired temperature.
2. Test the operation of the appliance and the new limit control(s) to verify
correct operation.
3. NOTE: EZ-Temp controls have a subtractive differential — control contacts
trigger when the temperature setting is reached. Contacts reset after tem-
perature drops below setpoint minus the differential amount.
a
EZ-Temp well
b
EZ-Temp sensor
c
Rubber sensor retainer
d
Retainer washer
e
Jam nut
f
Sensor leads
g
J-box, 4x4
h
Lock washer
i
Existing well
j
Well clamp
k
Sensor retainer spring
l
Flat washer
m
Tensioning screw
