tekmar 153 Mixing Setpoint Control - Manual

Settings
Temperature Display — –85 to 302°F (–65 to 150°C)
Supply (1) Setpoint
— –40 to 239°F (–40 to 115°C)
Throttling Range — 16 to 67°F (9 to 37°C)
Boiler Return (2) — –40 to 239°F (–40 to 115°C)
Temperature Scale — Fahrenheit/Celsius
Program settings — Ten year memory backup
Mixing Setpoint
Control 153 Floating Action
1
Supply (1) Throttling Return (2)
PRGM
F C
Item
2 5 6 7 8
O C
3 4
C - R +
1
2
Power
- Data Brochure
Mixing Setpoint Control 153 12/08
D 153
O C
F C
Throttling Supply(1)
1
Return(2
Programming
mode indicator
Wiring Chamber;
Terminals for 24V (ac)
power supply and
control circuit
to actuating motor
Item selection and
display button
Relay operation
indicators
Item
Identifiers
Temperature and
Throttling range
Display
Wiring Chamber;
Terminals for
Sensor(s)
Technical specifications
Dimensions — 2-7/8" x 4-3/4" x 7/8"
(74 x 120 x 22 mm)
Gross Weight — 1 lb (450g)
Ambient — –20 to 120°F (–30 to 50°C)
< 90% RH non-condensing
Power supply — 24 V (ac) ±10%, 50/60 Hz, 3 VA
24 V DC ±10%, 0.03 A
Relay capacity — 240 V (ac), Max 10 A, 1/3hp
Sensor — 10 kΩ @ 77°F (25 ± 0.2°C),
NTC thermistor, ß = 3892
accurate with up to 500 ft.
(150m) of 18 gauge wire
Control accuracy — ± 0.5°F ( ± 0.3°C) at
70°F (21°C)
Hole for mounting screw
Hole for mounting screw
Sequence of Operation
• When the Mixing Setpoint Control 153 Floating Action is powered-up the digital display will show all of the display elements. The
control will then monitor sensor Supply (1) temperature. If a Boiler Return (2) sensor is connected, pressing and releasing the
Item button will toggle the display between Supply (1) and Boiler Return (2) temperature readings.
Floating Action Operating Mode
• If the relay Open (O) is constantly on, the measured temperature is at least
1/2 the throttling range setting below the setpoint. The mixing valve should
be opening or fully opened because more heat is required.
• If the relay Close (C) is constantly on, the measured temperature is at least
1/2 the throttling range setting above the setpoint. The mixing valve should
be closing or fully closed.
• Floating Action occurs when the measured temperature is between these two
points (Throttling range).
Technical Data
° C or °F
indicators
Programming and
display buttons
The tekmar Mixing Setpoint Control 153 is a microprocessor-based control with a floating action output
intended to operate a mixing valve, damper, etc. through an actuating motor.
This reliable and versatile control has an adjustable throttling range and a very wide setpoint range that
makes it useable in many different applications. The control has a digital LCD window that normally shows
the actual sensor temperature and can be used to view the setpoint and other programmed settings.
A Universal Sensor 071 is supplied with the control. The wire to the sensor may be extended for any length
up to 500 ft. (150m) by standard 18 AWG low voltage wire. When an optional return sensor is added, a
minimum boiler return temperature can be constrained. The display will indicate a sensor fault whenever
the sensor is disconnected or short circuited, or the return sensor is short circuited.
OPEN RELAY ON
Te
mperature
W
a rmer
Cooler
Time
BOTH
RELAYS OFF;
NO VALVE
MOVEMENT
Desired
Temperature
Setting Throttling
Range
24 V (ac) Floating Action
CLOSE RELAY ON
Meets Class B:
Canadian ICES
FCC Part 15
Made in Canada
tektra 906-07
Dat
e Code
Open
Mix
Close
Mix
Pwr
Mix
Sup
Sen Com
Sen
Ret
Sen
Power: 24 V ±10% 50/60 Hz 3 VA
24 V (dc) ±10% 0.03 A
Relays: 240 V (ac) 10 A 1/3 hp
H1096F
No power