User Manual

CTE-3016/3017/3026/3027 1 Installation Guide

Installation Guide

Low Limit Controllers, SPDT

CTE-3006/3007

Mounting 1

Wiring 1

Actuation and Reset 2

Setpoint Adjustment 2

Testing 2

Accessories 2

Maintenance 2

Speciﬁcations 2

Important Notices 2

Mounting

The controller can be mounted in any position,

but avoid locations subject to excessive vibration.

For manual reset models, position the controller to

permit convenient access to the reset buon.

1. Loosen the front screw and remove the cover.

2. Using the two 3/8" mounting keyholes, mount

the case ush against the duct work or any at

surface.

3. Install the sensing capillary in a horizontal

serpentine fashion across the downstream side of

a water coil.

4. Using HMO-4523 capillary clips (ordered

separately), support the sensing capillary

at sucient points to prevent damage from

vibration and/or air movement.

CAUTION

Do not kink or apply excessive force to the capillary

element.

5. Make the appropriate connections to the terminal

blocks. (See the Wiring section.)

Wiring

An opening for installing a connector for 1/2" conduit

is provided in the boom of the case.

All wiring should comply with national and local

electrical codes. Using 10 to 14 AWG solid copper

wire is recommended.

Strip wire ends 3/8", insert the wire ends under

the cup washers on the switch block, and securely

retighten terminal screws. Wire terminals according

to the Actuation and Reset section on the next page.

PAGE 1
Low Limit Controllers, SPDT CTE-3006/3007 Installation Guide Mounting Wiring The controller can be mounted in any position, but avoid locations subject to excessive vibration. For manual reset models, position the controller to permit convenient access to the reset button. An opening for installing a connector for 1/2" conduit is provided in the bottom of the case. All wiring should comply with national and local electrical codes. Using 10 to 14 AWG solid copper wire is recommended. 1.
PAGE 2
Actuation and Reset Specifications Terminal 1 is the “common” terminal, 4 is NC (above setpoint), and 2 is NO. When the sensed temperature falls below setpoint, connection “1–4” opens and connection “1–2” closes (see diagram below). The switch latches in this position until the sensed temperature rises 5° F (3° C) above setpoint and the controller is reset either (depending on the model) automatically or manually by depressing the reset button located in the top of the controller case.