90000A, B & C Dual Limit Temperature Control

Operating and High Limit

Features & Benefits

  • Multiple Sensor Option (1 or 2) (Using individual and/or dual sensor assemblies)
  • Easy Remote Sense (Electronic sensors, wired to control)
  • Smart Manual Reset (Manual reset only if operating limit doesn’t open)
  • Serviceman reset protection (Latch-up after three consecutive lockouts)
  • Latch-up mode shuts down the control after three consecutive lockouts and requires a special procedure to reset. This ensures the owner will call in a licensed technician to troubleshoot and correct burner problems.
  • Power-independent Lockout (Power cycling won’t reset from lockout or latch-up)
  • Diagnostic LED’s (Power, Call for Heat, Lockout/latch-up)
  • SMC Technology (Safety Monitoring Circuit)
  • Provides two limit relays. Carlin’s Safety Monitoring Circuit monitors the contacts for both relays. Lockout occures if a limit relay contact is found closed when it should be open.)

Model 90000A
  • Dual Limit Temperature Control
  • Operating and high limit action
  • Smart manual reset on high limit
  • 2 sensors (operating and high limit)
  • 1 contact – operating limit
  • 1 contact – high limit
Power Input
(Red/White Wire)
120 vac, 11 VA
Contacts
2 Independent
Contact Rating
Full Load: 120 vac, 10 Amps
Locked Rotor: 120 vac, 60 Amps
Wires
Quantity: 6
120 vac Hot/Neutral: Red-white/white
Operating Limit In/Out: Black-green/black
High limit In/Out: Black-red/black-yellow
Limits Out: NA
Adjustable Operating Limit Range
Any range between 50°F to 240°F
Fixed High Limit Temperature
Any value from 160°F to 240°F
Fixed Differential (Subtractive)
Any value from 5°F to 100°F
Operating Temperature Limits
+32°F to +140°F
Storage Temperature Limits
-40°F to +185°F
Agencies
UL & ULC Listed or Recognized Component (US & Canada)
Model 90000B
  • Redundant Limit Temperature Control
  • Operating and high limit action
  • Smart manual reset on high limit
  • 1 sensor
  • Operating and limit contacts in series
Power Input
(Red/White Wire)
120 vac, 11 VA
Contacts
2 In Series
Contact Rating
Full Load: 120 vac, 10 Amps
Locked Rotor: 120 vac, 60 Amps
Wires
Quantity: 3
120 vac Hot/Neutral: Red-white/white
Operating Limit In/Out: NA
High limit In/Out: NA
Limits Out: Black
Adjustable Operating Limit Range
Any range between 50°F to 240°F
Fixed High Limit Temperature
Any value from 160°F to 240°F
Fixed Differential (Subtractive)
Any value from 5°F to 100°F
Operating Temperature Limits
+32°F to +140°F
Storage Temperature Limits
-40°F to +185°F
Agencies
UL & ULC Listed or Recognized Component (US & Canada)
Model 90000C
  • Redundant Limit Temperature Control
  • Operating and high limit action
  • Smart manual reset on high limit
  • 2 sensors (Operating and high limit)
  • Operating and limit contacts in series
Power Input
(Red-White Wire)
120 vac, 11 VA
Contacts
2 In Series
Contact Rating
Full Load: 120 vac, 10 Amps
Locked Rotor: 120 vac, 60 Amps
Wires
Quantity: 3
120 vac Hot/Neutral: Red-white/white
Operating Limit In/Out: NA
High limit In/Out: NA
Limits Out: Black
Adjustable Operating Limit Range
Any range between 50°F to 240°F
Fixed High Limit Temperature
Any value from 160°F to 240°F
Fixed Differential (Subtractive)
Any value from 5°F to 100°F
Operating Temperature Limits
+32°F to +140°F
Storage Temperature Limits
-40°F to +185°F
Agencies
UL & ULC Listed or Recognized Component (US & Canada)