Owner manual

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

Installation Guide

Low Limit Controllers, DPDT

CTE-3016/3017/3026/3027

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 the included HMO-4523 capillary clips,

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 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.

CTE-3017 Shown

PAGE 1
Low Limit Controllers, DPDT CTE-3016/3017/3026/3027 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 14 AWG solid copper wire is recommended. 1.
PAGE 2
Actuation and Reset Specifications Terminals 11 and 21 are “common” terminals, 14 and 24 are Normally Closed (above setpoint), and 12 and 22 are Normally Open (see the diagram below). When the sensed temperature falls below setpoint, connections “11–14” and “21–24” open and connections “11–12” and “21–22” close.