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Mounting
1. Drill a 5/8" diameter hole in the duct work.
2. Insert the thermostat in the duct.
3. Secure with sheet metal screws fastened through
the two 3/16" (5 mm) mounting holes.
CTC-4001/4004
Installation Guide
Connections
General
The CTC-4001 and CTC-4004 are not snap-acting.
The unit must be below or above the setpoint range
to completely switch. At temperatures within the
setpoint range, all three ports are connected.
The setpoint adjustment allows ranges to be moved
up 5° F or down 10° from the default values.
The CTC-4001 and CTC-4004 use 1/4" (6 mm) OD
polyethylene tubing for all connections. Make neces-
sary connections based on the model.
CTC-4001
• Port C is the (filtered) common
• Port A is closed above 75° F (24° C)
• Port B is closed below 70° F (21° C)
NOTE: For the CTC-4001, when temperature
CTC-4004
• Port C is the (filtered) common
• Port A is closed above 70° F (21° C)
• Port B is closed below 65° F (18° C)
NOTE: For the CTC-4004, when temperature
1
3-Way, Switching, Duct Thermostat
is below 70° F (21° C), ports A and C
are connected, but B is blocked. When
temperature is above 75° F (24° C), ports
B and C are connected, but A is blocked.
Between 70 and 75° F, all ports are
connected.
is below 65° F (18° C), ports A and C
are connected, but B is blocked. When
temperature is above 70° F (21° C), ports
B and C are connected, but A is blocked.
Between 65 and 70° F, all ports are
connected.
CTC-4001/4004
Installation Guide
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Summary of Contents for KMC Controls CTC-4001
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Page 1: Installation Guide
The setpoint adjustment allows ranges to be moved up 5° F or down 10° from the default values. The CTC-4001 and CTC-4004 use 1/4" (6 mm) OD polyethylene tubing for all connections. Make neces- sary connections based on the model. -
Page 2: Important Notices
The contents and the product it describes are subject to change without notice. KMC Controls, Inc. makes no representations or warranties with respect to this document. In no event shall KMC Controls, Inc. be liable for any damages, direct or incidental, arising Maintenance out of or related to the use of this document.