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Emerson Climate TechnologiesEmerson Climate Technologies

Temperature-Pressure Controls

Emerson Climate Technologies

Adsorption Charge – Sensor Type F

Adsorption charged sensor types operate on a tem-

perature dependent adsorption material, which is inside

the bulb only. These sensor types always respond to

temperature changes at the bulb only. This makes them

suitable to applications where it is not always dened

which part of the thermal system the coldest point is

(cross ambient applications). An example for such ap-

plications is defrost control.

Adsorption charges are slower in response to tempera-

ture changes than vapor charges.

Liquid Charge – Sensor Type C

Liquid charge sensors of type ‘C’ always sense from

the warmest point of the thermal system. The sensing

location must always be 4 degrees F warmer than other

parts of the thermal system.

Setpoints

TS1 are adjustable controls with adjustment spindles

for range and differential. Note that manual reset con-

trols and some other controls have a xed differential

and no differential spindle. By turning the range spindle,

the upper setpoint is dened and by adjusting the dif-

ferential spindle, the differential and the lower setpoint is

dened.

The dependency between upper and lower setpoint is

always as follows:

lower setpoint = upper setpoint – differential

The following two rules should be kept in mind:

➯ an adjustment of the range spindle always affects

both upper and lower setpoint.

➯ an adjustment of the differential spindle affects the

lower setpoint only.

The controls are equipped with display scale and

pointers to show the approximate settings.

Top operated controls have display scales in units °C

and °F, front operated controls have a display scale in

units °C.

For precise setting of the controls, external thermom-

eters must be used.

Electrical Contacts

TS1 temperature controls are equipped with high

rated double snap action contacts for shatter-free and

reliable operation.

All contacts in these controls are designed as Single

Pole Double Throw (SPDT) contacts. One contact may

be used for control and the other contact for alarm/sta-

tus indication or auxiliary control.

Gold plated contacts are available on request for low

electrical loads, for example in electronic signaling ap-

plications.

For applications using a supply voltage other than

230V and for applications using gold plated contacts,

the bellows heater of vapor charged thermostats (sensor

style A, E or P – not for frost monitors function C or D)

must be disabled.

Contact Function

Thermostat contacts TS1 are labeled 1-2-4 where ‘1’

refers to the common pole, ‘2’ refers to the lower set-

point and ‘4’ refers to the upper setpoint.

The contact function for automatic and manual reset

versions is as described below.

Automatic Reset

On temperature rise above the upper setpoint,

contacts 1-open and contacts 4 close. On decreasing

temperature lower setpoint contacts 4 open and con-

tacts close.

Automatic reset contact function

Manual Reset Low Temperature

On decreasing temperature below the lower setpoint,

contacts 1-4 open, contacts close and latch. Only on

temperature rise above upper setpoint and after press-

ing the manual reset button contacts will open and

contacts 4 will close again.

Manual reset low temperature contact function

Manual Reset High Temperature

On increasing temperature above the upper setpoint,

contacts 1-open, contacts 4 close and latch. Only on

falling temperature below lower setpoint and after press-

ing the manual reset button, contacts 4 will open and

contacts 1-will close again.

Manual reset high temperature contact function

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