Emerson TS1-A1A, TS1-A2P, TS1-A3P, TS1-A2A, TS1-A3A Datasheet

TS1 Series

Temperature Controls

Alco Controls

D A T A S H E E T

TS1__35038_EN_R05.doc 1 / 8 10.08.2011

Adjustable temperature controls for refrigeration applications.

Features

• Housing variants for top and front operation

• Flush mounted version

• Adjustable temperatures and differentials

• Range and differential pointer in units °C and °F

• Range and differential individually lockable by wire seal

• High rated SPDT contacts for all versions

• Captive terminal and cover screws

• Manual toggle for system checkout and override

• Vapour and x-ambient charges

• Sensor shapes for various applications

• Bellows heater for thermostats with vapour charge (not for

frost monitors)

• Room thermostats with insulation console

• Versions with and without manual override

Options

• Gold plated contacts for electronic applications

(PLC, low voltage/current)

• Factory set to customer specification

• Different types of mounting brackets

• Sensor bulb wells and capillary tube holders

• Special approvals

Introduction

The TS1 Series is ALCO’s range of adjustable thermostats for
application in refrigeration and heat pump systems.

In these systems, thermostats serve control and monitoring
functions, such as space temperature control, high/low
temperature alarming or defrost termination. By operating a set
of electrical contacts, a temperature value is kept inside a
certain limit.

Several housing variants and sensors are provided in order to
suit a control to a specific application.

Housing variants

TS1 controls can be delivered in three main housing variants,
top operated, front operated and flush mounted.

Top operated controls have adjustment spindles at the top and
a display scale, indicating temperature setpoint and differential,
at the front. A knob which may be permanently plugged onto
one of the adjustment spindles comes with every control. Frost
monitors and room thermostats are derivatives of top operated
thermostats. They differ by their sensors and other features to
suit their particular target applications.

Front operated controls have an adjustment knob at the front for
the temperature setpoint with an approximate scale imprinted
on

the knob. In order to adjust the temperature differential, the
cover of the control must be removed.

Flush mounted controls are designed in a way that they can be
integrated into a panel or housing, for example into display
cases.

All of these three variants are available either with or without
off-switch, which cuts off power supply to the thermostat in off
position

Temperature sensing

TS1 thermostats sense temperature by means of a thermal
system, consisting of temperature charge, bulb, capillary and
bellows. The temperature charge changes its pressure based
on the refrigerant temperature to be sensed. The sensor is the
portion of the system which is in thermal contact with the
refrigerant, the capillary connects the sensor with the bellows
and the bellows contracts or expands depending on the
temperature, causing the thermostat to operate the electrical
contacts. An exception are capillary type of sensors, which do
not have a bulb, instead, their capillary serves as the bulb
directly.

TS1 Flush Mounted

TS1 FrontOperated

TS1 Top Operated

TS1 Series

Temperature Controls

Alco Controls

D A T A S H E E T

TS1__35038_EN_R05.doc 2 / 8 10.08.2011

Charges and sensor types are matched to temperature ranges
and other application specific characteristics. TS1 thermostats
come with two charge types: vapour and adsorption charges.
The application temperature range covered by each charge
type is shown below:

Vapour charge – Sensor type A, E, P

These sensing elements always sense from the coldest point on
the capillary, coil, bulb or power element head. For proper
operation it must be ensured that this coldest point is at the
sensor portion which is exposed to the medium tempereature to
be sensed. The sensing location should be at least 2K colder
than the other parts of the thermal system.

In order to avoid unwanted effects of heat transfer, e.g. from a
cold wall, ALCO vapour charged thermostats come with an
integrated bellows heater (not for frost monitors), which is rated
for 230V applications. For other applications the heater must be
disabled, alternatively, a bellows heater with a different rating
may be available.

In addition to the bellows heater, room thermostats are supplied
with an insulation console for the same reason.

Sensor type ‘A’ is a coiled bulb sensor with two meter capillary,
which may be used with or without a bulb well. Style ‘E’ is a coil
sensor for space temperature sensing, and type ‘P’ is a capillary
type of sensor which can be wrapped around a heat heat
exchanger’s surface in order to sense the coldest point on the
heat exchanger for frost protection applications.

Vapour charges respond faster to temperature changes than
adsorption and liquid charges.

Adsorption charge – sensor type F

Adsorption charged sensor types operate on the basis of a
temperature dependent adsorption material, which is located
inside the bulb only. Therefore these sensor types always
respond to temperature changes at the bulb only. This makes
them suitable to applications where it is not always defined
which part of the thermal system the coldest point is (cross
ambient applications). An example for such applications is
defrost control.

Adsorption charges are slower in response to temperature
changes than vapour charges.

Setpoints

TS1 are adjustable controls with adjustment spindles for range
and differential*. By turning the range spindle, the upper
setpoint is defined and by adjusting the differential spindle, the
differential and hence the lower setpoint is defined.

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 following diagrammes depict this dependency:

Effect of turning range spindle

Effect of turning differential spindle

The controls are equipped with display scale and pointers to
indicate 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 thermometers must
be used.

*) Manual reset controls and some other controls have a fixed
differential and no differential spindle

 = constant





= variable

-100 -50 0 50 100 150 200

Adsorption Charge

Vapour Charge

TS1 Series

Temperature Controls

Alco Controls

D A T A S H E E T

TS1__35038_EN_R05.doc 3 / 8 10.08.2011

Electrical contacts

TS1 temperature controls are equipped with high rated double
snap action contacts for shatter-free and reliable operation.

All contacts throughout this range of controls are designed as
Single Pole Double Throw (SPDT) contacts. One contact may
be used for control and the other contact for alarm/status
indication or auxilliary control.

Gold plated contacts are available on request for low electrical
loads, for example in electronic signalling applications.

For applications using a supply voltage other than 230V and for
applications using gold plated contacts, the bellows heater of
vapour 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 labelled 1-2-4 where ‘1’ refers to
the common pole, ‘2’ refers to the lower setpoint 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 1-2
open and contacts 1-4 close. On decreasing temperature lower
setpoint contacts 1-4 open and contacts 1-2 close.

Automatic reset contact function

Manual reset low temperature

On decreasing temperature below the lower setpoint, contacts
1-4 open, contacts 1-2 close and latch. Only on pressure rise
above upper setpoint and after pressing the manual reset
button contacts 1-2 will open and contacts 1-4 will close again.

Manual reset low pressure contact function

Manual reset high temperature

On increasing temperature above the upper setpoint, contacts
1-2 open, contacts 1-4 close and latch. Only on falling
temperature below lower setpoint and

after pressing the manual
reset button, contacts 1-4 will open and contacts 1-2 will close
again.

Manual reset high temperature contact function

For operational safety, all TS1 with manual reset are designed
as trip-free controls, i.e. pressing the manual reset button while
the temperature has not reached its reset treshold will not
operate the electrical contacts.

Off-switch

TS1-B/F/H with an off-switch (TS1-B/F/H) cut off the line to
terminal 1 when in Position “STOP”.

Off-switch interrupting line to terminal 1

Bellows heater

TS1 with vapour charges, ie. sensor types A, E, P (not frost
monitors function C or D) have a bellows heater wired across
the contacts in the following way.

Bellows heater

Installation and maintenance

Controls come with an adjustment knob and a lockplate which
may be used to protect the settings by wire-seal if desired.
Range and differential spindle may be sealed independent from
each other.

A front access manual toggle is provided for checking out
control operation. All TS1 controls come with heavy duty
terminal blocks which are finger-proof and feature wire clamps
plus non-loosable terminal screws for ease of wiring.

Available accessories include mounting brackets of various
types, sensor bulb wells and capillary tube holders.

The standard mounting holes for mounting brackets are
equipped with a universal thread to fit both, M4 and UNC 8-32
screws. The standard wholesale package includes two
mounting screws.

In addition, further hole patterns for surface mounting are
provided.

TS1 Series

Temperature Controls

Alco Controls

D A T A S H E E T

TS1__35038_EN_R05.doc 4 / 8 10.08.2011

Nomenclature

The following chart explains the nomenclature of the TS1
controls for ease of reference. The basic structure is that of a
three digit Product Name followed by a three digit code,
describing Function, Temperature Range and Temperature

Sensor.

Customised versions, which deviate from standard catalogue
products are available on request and use a different Product
Name. They are called TSA followed by the three digit code to
indicate function, temperature range and temperature sensor.

Technical data

Environmental conditions Electrical contacts

Ambient temperatures Type of contacts 1 x SPDT contact

storage and transportation:

operation:

-50 °C to +70 °C

-50 °C to +70 °C

Contact material - standard:

- options:

CuAg

3

gold plated contacts

Maximum temperature at sensor bulb depending on bulb Heating load (AC1): 24A / 230 V AC

Locked rotor / Startup (AC3): 144A / 230 V AC

type and charge Inductive load (AC15): 10A / 230 V AC

Dust and water protection

EN 60529 / IEC 529:
Control mounted flush against wall!

IP44 (w/o off-switch)
IP30 (with off-switch)

Inductive load (DC13):

0.1A / 230 V DC
3A / 24 V DC
6A / 12 V DC

Vibration resistance: 4 g @ 10 … 1000 Hz Motor rating UL (FLA): 24A / 120/240V AC

Approvals

Locked rotor UL (LRA): 144A / 120/240V AC

Low Voltage Directive all models Bellows heater (sensor types A, E, P -

73/23/EWG 93/68/EWG;
EN 60947-1 / 60947-5-1 / 60730-2-9

(CE-Label) not for frost monitors function C or D):

- option:

82 k, 230V AC, DC
12V, 24V rating

Germanic Lloyd: standard models

Materials

when used with marine cable glands (accessory) Housing materials

cover:

Polycarbonate (PC)

UL / CSA:

all models (pending)

frame: Steel, yellow chromated

Type code

TS1

-

Function / housing variant

A = Wall mounting, top adjustment

B = Wall mouting, top adjustment, off-switch

C = Frost monitor, auto reset

D = Frost monitor, manual reset

E = Wall mounting, front adjustment

F = Wall mounting, front adjustment, off-switch

G = Flush mounting

H = Flush mounting, off-switch

R = Wall mounting, top adjustment, manual reset*

*temp. ranges 0 – 4: manual reset for falling temperature

temp. ranges 5 – 9: manual reset for rising temperature

Temperature Sensor Type

A = Vapour charge, 2 m, bulb

E = Vapour charge, 0 m, coil

F = Adsorption charge, 2 m, bulb

P = Vapour charge, 2 m, capillary

function „C“ and „D“: 6 m capillary

Tempera

ture range

0 = +4.5 … + 20 °C

1 = -45 … -10 °C

2 = -30 … +15 °C (-30 … +10 °C)

3 = -10 … +35 °C (-10 … +25 °C)

4 = -25 … +30 °C (-30 … +35 °C)

5 = +20 … +60 °C (+25 … +75 °C)

6 = +50 … +100 °C

7 = 0 … +10 °C

() = dep. on exact version

Product Name

TS1 = Adjustable thermostat

TSA = Customised version

TS1 Series

Temperature Controls

Alco Controls

D A T A S H E E T

TS1__35038_EN_R05.doc 5 / 8 10.08.2011

Physical dimensions and drawings

TS1-Axx / Bxx / Cxx / Dxx TS1-Exx / Fxx

TS1-Gxx / Hxx

Sensor type A

Vapour charge

2 m capillary

with bulb

Sensor type P

Vapour charge

2 m capillary

(6m with function C

or D)

Sensor type E

Vapour charge

coil, 0 m

Sensor type F

Adsorption charge

2 m capillary

with bulb

54

70

Ø 9

2

2,5

Ø 9,5

70

Ø 22

TS1 Series

Temperature Controls

Alco Controls

D A T A S H E E T

TS1__35038_EN_R05.doc 6 / 8 10.08.2011

Standard Temperature Controls

Temperature controls should be selected such, that the target
upper and lower setpoints fall well inside the adjustment range
and not at the end of the specified range.

Type

Part Adjustment

Range Lowest Factory Max. Temp. Sensor

No.

Upper

Setpoint

°C

Differential

Setpoint

K

Setpoint

°C

Setting

°C

Bulb

Temp.

°C

Charge Type

Thermostats TS1 Top Operated (with capillary type sensor)

Thermostats without Off-Switch

TS1-A2P 4 530 400 -30 … +15 1.5 … 16 -36 -1 / -6 +150 2m
TS1-A3P 4 356 700 -10 … +35 1.5 … 16 -23 +3 / -2 Vapour capillary
TS1-A1A 4 351 500 -45 … -10 -55 -18 / -20

TS1-A2A4 351 600

-30 … +15 1.5 … 16 -36 -1 / -6 +150 2m

TS1-A3A

4 352 500

-10 … +35 -23 +3 / -2 capillary

TS1-A4F

4 351 800

-30 … +35 2.8 … 20 -35 +5 / 0 and

Defrost- and Universal

Thermostat

+100 Adsorption bulb

TS1-A5F 4 458 400 +20 … +60 3 … 10 +10 +35 / +30

Thermostats with Off-Switch

TS1-B1A 4 366 700 -45 … -10 -55 -18 / -20 2 m
TS1-B2A 4 366 800 -30 … +15 1.5 … 16 -36 -1 / -6 +150 Vapour capillary
TS1-B3A 4 366 900 -10 … +35 -23 +3 / -2 and
TS1-B4F 4 367 000 -30 … +35 2.8 … 20 -35 +5 / 0 +100 Adsorption bulb

Room Thermostats TS1 Top Operated (with coil type sensor)

Room Thermostats without Off-Switch, including insulation console

TS1-A1E 4 362 800 -45 … -10 -55 -18 / -20 0 m
TS1-A2E 4 355 200 -30 … +15 1.5 … 16 -36 +4 / +2 +70 Vapour coil
TS1-A3E 4 355 300 -10 … +35 -23 +20 / +18

Room Thermostats with Off-Switch, including insulation console

TS1-B2E 4 344 400 -30 … +15 1.5 … 16 -36 +4 / +2 +70 Vapour 0 m
TS1-B3E 4 344 500 -10 … +35 -23 +20 / +18 coil

Frost Monitors TS1 Top Operated (with capillary type sensor)

Frost Monitors without Off-Switch

TS1-C0P 4 352 100 +4.5 … +20 2.5 fix +2 4.5 / +2 6 m
TS1-D0P 4 352 200 +4.5 … +20 man. reset +2 +2 +150 Vapour capillary

Low temp. cut out

ca. 2.5 fix

TS1 Series

Temperature Controls

Alco Controls

D A T A S H E E T

TS1__35038_EN_R05.doc 7 / 8 10.08.2011

Type

Part Adjustment

Range Lowest Factory Max. Temp. Sensor

No.

Upper

Setpoint

°C

Differential

Setpoint

K

Setpoint

°C

Setting

°C

Bulb

Temp.

°C

Charge Type

Thermostats TS1 Front Operated (with capillary type sensor)

Thermostats without Off-Switch

TS1-E1A 4 361 000 -45 … -10 2 … 16 -55 -18 / -20
TS1-E2A 4 356 200 -30 … +10 1.5 … 15 -36 +4 / +2 +150 Vapour
TS1-E3A 4 365 200 -10 … +25 1.5 … 15 -23 +3 / -2 2 m

TS1-E4F

4 367 500

-25 … +30 2.8 … 20 -30 +5 / 0 capillary

Defrost- and Universal Thermostat

and
TS1-E5F 4 338 100 +20 … +60 3 … 10 +10 +35 / +30 +100 Adsorption bulb
TS1-E7F 4 367 600 +0 … +10 2.5 fix -2.5 +5.5 / +3

Milk and beer Cooler Thermostat

Thermostats with Off-Switch

TS1-F1A 4 367 100 -45 … -10 2 … 16 -55 -18 / -20 2 m
TS1-F2A 4 367 200 -30 … +10 1.5 … 15 -36 -1 / -6 +150 Vapour capillary
TS1-F3A 4 367 400 -10 … +25 1.5 … 15 -23 +3 / -2 and bulb

Room Thermostats TS1 Front Operated (with coil type sensor)

Room Thermostats without Off-Switch, including insulation console

TS1-E1E 4 365 300 -45 … -10 2 … 16 -55 -18 / -20 0 m
TS1-E2E 4 356 800 -30 … +10 1.5 … 15 -36 +4 / +2 +70 Vapour coil
TS1-E3E 4 356 900 -10 … +25 1.5 … 15 -23 +20 / +18

Room Thermostats with Off-Switch, including insulation console

TS1-F1E 4 368 000 -45 … -10 2 … 16 -55 -18 / -20
TS1-F2E 4 368 100 -30 … +10 1.5 … 15 -36 +4 / +2 +70 Vapour 0 m
TS1-F3E 4 368 200 -10 … +25 1.5 … 15 -23 +20 / +18 coil

Thermostats TS1 for Flush Mounting (with coil type sensor)

Thermostats for Flush Mounting without Off-Switch

TS1-G2A 4 355 400 -30 … +15 1.5 … 15 -36 +4 / +2 +150 Vapour 2 m
TS1-G3A 4 364 800 -10 … +35 1.5 … 15 -23 +20 / +18 capillary
TS1-G4F 4 355 600 -30 … +35 2.8 … 20 -35 +5 / 0 and

Defrost- and Universal Thermostat

+100 Adsorption bulb
TS1-G7F 4 356 000 0 … +10 2.5 fix -2.5 +5.5 / +3

Milk and beer Cooler Thermostat

Thermostats for Flush Mounting with Off-Switch

TS1-H1A 4 364 600 -45 … -10 1.5 … 15 -55 -18 / -20
TS1-H2A 4 355 500 -30 … +15 1.5 … 15 -36 -1 / -6 +150 Vapour 2 m
TS1-H3A 4 367 900 -10 … +35 1.5 … 15 -23 +3 / +2 capillary
TS1-H4F 4 355 800 -30 … +35 2.8 … 20 -35 +5 / 0 and
TS1-H7F 4 365 500 0 … +10 2.5 fix -2.5 +5.5 / 3 +100 Adsorption bulb

Milk and beer Cooler Thermostat

TS1 Series

Temperature Controls

Alco Controls

D A T A S H E E T

TS1__35038_EN_R05.doc 8 / 8 10.08.2011

Accessories

Universal mounting bracket

803 801 (incl. screws)

Mounting bracket angle

803 799 (incl. screws)

Extension bracket

803 800 (incl. screws)

Insulation console

803 777

room thermostats: standard

1

4

Ø 5,5

6

20

2

8

R1/2

19 27

SW 27

Ca

pillary tube holder,

5 pcs

803 778

frost monitors: standard

Capillary tube gland, brass,

R½

For sensors A + C

803 807

Mounting angle for TS1

-

G, -H

803 805

ALCO CONTROLS is not to be held responsible for erroneous literature
regarding capacities, dimensions, applications, etc. stated herein.
Products, specifications and data in this literature are subject to change
without notice. The information given herein is based on technical data
and tests which ALCO CONTROLS believes to be reliable and which
are in compliance with technical knowledge of today. It is intended only
for use by persons having the appropriate technical knowledge and

skills, at their own discretion and risk. Our products are designed and
adapted for fixed locations. For mobile applications failures may occur.
The suitability for this has to be assured from the plant manufacturer
which may include making appropriate tests. Since conditions of use
are outside of ALCO'S control we can not assume any liability for
results obtained or damages occurred due to improper application.
This document replaces all earlier versions.

Emerson Electric GmbH & Co OHG

ALCO CONTROLS

Postfach 1251

Heerstraße 111

D-71332 Waiblingen

Germany

Phone ...[phone]

Fax ...[phone]

www.emersonclimate.eu

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Phone:

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Fax:

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12,625,212,6

82

65

50,5
25,2

25,225,212,6

5

120

41

4

0

1

8

2

5

12,5

Ø 4,5

25

30

2

5

2

5

25

M4

12,5

Ø 4,5

44

70 ±0,2

4,8

30

15,5

83

3011

48