- Application
A 150-1
12/08
One Stage Setpoint Control 150
Mechanical
150
On/Off Switch
Class 2
Transformer
24 V (ac)
120 V (ac)
Relay
(R1) 003
Balancing
Valve
Slab Sensor (S1)
072 or 073
Slab
Pump (P1)
Boiler
Pump
Max. 4 pipe
diameters apart
Storage Tank for
thermal mass —may
be required if low
mass boiler is used.
Injection
Pump (P2)
Heating System
Boiler
Electrical
B1 = Boiler Enable
P1 = Slab Pump
P2 = Injection Pump
R1 = Relay 003
S1 = Slab Sensor 072 or 073
8A
24V only
150
8A
No
Power
1 2 3 4
5 6 7
C
N/C Sensor
On
—
Power
Off
R R' N/O
S1
B1
R1
6
5
7
8
1
2
4
3
P2
P1
Class 2
Transformer
120 V (ac)
24 V (ac)
C
R
L
N
Note: This is only a concept drawing. Designers must determine whether this system will work in each application and must ensure
compliance with code requirements. Necessary auxiliary equipment and safety devices must be added.
A 150-1
Operation
The One Stage Setpoint Control 150 regulates the temperature of the slab by turning the injection pump on and off in response to
temperature changes at the slab sensor.
Note: For optimum control, the supply temperature from the boiler should be constant. This will allow the system to be balanced so
that the supply fluid to the slab is just hot enough to maintain the slab temperature at design conditions.
Specifications
The following are minimum recommended specifications for the control in this application.
• The slab temperature shall be maintained based on the programmed setpoint temperature.
• The slab pump must run continuously with the injection pump cycling on and off to provide heat input into the slab.
• The control shall operate the injection pump using Pulse Width Modulation (PWM) action.
• The control shall be able to display and adjust the setpoint temperature, differential and delay or cycle length.
• The control shall have an adjustable cycle length of 30 sec. to 19 min. 50 sec (10 second increments).
• The control shall be microprocessor-based and have an internal SPDT relay with 8 amp (resistive) isolated contacts for outputs.
• The installation location must be maintained within the ambient temperature and humidity ranges specified in the D 150 Brochure
for this control, with the installer ensuring that the control and its wiring are isolated and/or shielded from strong sources of
electromagnetic noise.
• The control shall continuously monitor its temperature sensors and provide an error message upon sensor failure.
• The control components required from tekmar are a One Stage Setpoint Control 150, one Slab Sensor 072 or 073 and one Relay
003. (The Supply Sensor 071 included with this control should not be used if the sensor is to be poured directly into a concrete
slab without using conduit.)
Settings
One Stage Setpoint Control 150
Temperature Display
Setpoint
Differential range (PWM)
Cycle Length (PWM)
Operating Mode
Adjustment Range
Recommended Initial Setting
-85 to 302°F (-65 to 150°C)
-40 to 239°F (-40 to 115°C)
3 to 40°F (2 to 22°C)
(10 second increments)
30 sec. to 19 min. 50 sec.
(10 second increments)
Heating/Cooling
Heat
One Stage Setpoint Control 150 DIP switch setting for this application.
On
PWM — DIP switch should
be in the up position
1
Off
Additional Information
• For control installation and testing instructions see Brochures D 150 and D 001.
• For control theory and system integration details see Essays E 001 and E 002.
Control Systems
tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 5100 Silver Star Road
Vernon, B.C. Canada V1B 3K4
Tel. (250) 545-7749 Fax. (250) 545-0650
Web Site: www.tekmarcontrols.com
Product design, software and literature are Copyright © 2008 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
All specifications are subject to change without notice.
Printed in Canada. A 150-1 - 12/08
- Application
A 150-2
12/08
One Stage Setpoint Control 150
Mechanical
150
Class 2
Transformer
24 V (ac)
120 V (ac)
Pool
Sensor
(S1) 071
P2
PWM
Electrical
P1 = Boiler Pump
P2 = Pool Pump
S1 = Pool Sensor 071
V1 = Balancing Valve or
Globe Valve
P1
V1
150
8A
1 2 3 4
On
— Power
Off C- R+ Com N/O
8A
No
Power
5 6 7
N/C Sensor
High Mass Low Mass -
S1
Boiler
Class 2
Transformer
24 V (ac) C
120 V (ac) L
P2
R
N
Note: This is only a concept drawing. The designer must determine whether this application will work in his system and must ensure compliance with
code requirements. Necessary auxiliary equipment, isolation relays (for loads greater than the specified tekmar internal relay ratings), and other safety
and limit devices must be added.
A 150-2
Technical Data
One Stage Setpoint Control 150
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Operating mode
A 150's, D 150, D 001, D 070
Temperature display
Microprocessor control; This is not a safety (limit) control.
0.7 lb. (330 g), Enclosure C, PVC plastic
4-3/4” H x 2-7/8” W x 7/8” D (120 x 74 x 22 mm)
CSA C US, CSA 22.2 No 24 and UL 873, meets class B: ICES & FCC Part 15
Indoor use only, -20 to 120°F (-30 to 50°C), < 90% RH non-condensing.
24 V (ac) ±10%, 50/60 Hz, 1.3 VA or 24 V (dc) ± 10% 0.02 A
240 V (ac) 8 A, 1/4 hp
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
Universal Sensor 071.
Ten year memory backup
±0.5°F (±0.3°C) with up to 500 feet (150 m) of 18 AWG wire to sensors.
-85 to 302°F (-65 to 150°C)
-40 to 239°F (-40 to 115°C)
1 to 40°F (1 to 22°C)
3 to 40°F (2 to 22°C)
0 to 19 min. 50 sec.
30 sec. to 19 min. 50 sec.
— Heating / Cooling
— Fahrenheit / Celsius
Meets Class B:
Canadian ICES
FCC Part 15
Made in Canada
H1094G
tektra 905-01
Power 24 V (ac) ± 10% 50/60 Hz 1.3 VA
24 V (dc) ± 10% 0.02 A
Relay 240 V (ac) 8 A 1/4 hp
F C
PRGM
HEAT
Setpoint
COOL
Differential
Delay/Cycle
Item
PWM
On
Off
One Stage Setpoint
Control 150
Made in Canada
No Power
1 2 3 4
6 7
Signal wiring must be 5
Power
C- R+ Com N/O rated at least 300 V N/C Sensor
Date Code
Literature
Control
Packaged weight
Dimensions
Approvals
Ambient conditions
Power supply
Relays
Sensors
included:
Programmed settings
Control accuracy
Temperature display
Setpoint
Differential (Bang/Bang)
Differential (PWM)
Time Delay (Bang/Bang)
Cycle Length(PWM)
System Operation & Specifications
The One Stage Setpoint Control 150 is used to enable a boiler in a pool heating system. The boiler is enabled using a Pulse Width
Modulation control logic. The boiler water temperature is controlled by the boiler's operating aquastat.
Piping and Heat Source Details The boiler loop and the pool loop are isolated from each other through the use of a heat exchanger.
The boiler loop pump (P1) is run by the boiler control and provides flow through the boiler side of the heat exchanger whenever the
boiler is enabled. The pool loop pump (P2) operates continuously and circulates a portion of the pool water through the pool side of
the heat exchanger according to the set up of the balancing valve (V1).
Setpoint Operation The 150 enables the boiler based on a Pulse Width Modulation logic. Once the 150 is powered up, the installer /
operator is required to set the Setpoint, Differential and Cycle settings on the 150. The 150 will monitor the pool return temperature
using the Universal Sensor 071 (S1) and will use this information in conjunction with the user input settings to enable the boiler. For a
description of Pulse Width Modulation, refer to Data Brochure D 150.
Additional Functions Additional control functions are listed in the table in the Setpoint Controls section of the Product Catalog I 000.
Note: For optimum system operation, high thermal mass systems such as pools should use the Pulse Width Modulation mode of
operation. Low thermal mass systems such as hot tubs and spas should use the On / Off Differential mode of operation.
Control Systems
tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 5100 Silver Star Road
Vernon, B.C. Canada V1B 3K4
Tel. (250) 545-7749 Fax. (250) 545-0650
Product design, software and literature are Copyright © 2008 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
All specifications are subject to change without notice.
Printed in Canada. A 150-2 - 12/08
Printed in Canada on recycled paper by
- Application
A 150-3
12/08
One Stage Setpoint Control 150
Mechanical
150
Class 2
Transformer
24 V (ac)
120 V (ac)
DHW
Recirculation
Loop
DHW
Sensor
(S1) 071
P1
A1
P2
PWM
Electrical
Domestic
Cold Water
A1 = DHW High Limit Aquastat
P1 = Boiler Pump
P2 = DHW Recirculating Pump
S1 = DHW Sensor 071
150
8A
8A
1 2 3 4
No
Power
5 6 7
On
— Power
Off C- R+ Com N/O
N/C Sensor
A1
S1
Boiler
Class 2
Transformer
24 V (ac) C
120 V (ac) L
P2
R
N
Note: This is only a concept drawing. The designer must determine whether this application will work in his system and must ensure compliance with
code requirements. Necessary auxiliary equipment, isolation relays (for loads greater than the specified tekmar internal relay ratings), and other safety
and limit devices must be added.
A 150-3
Technical Data
One Stage Setpoint Control 150
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Operating mode
A 150's, D 150, D 001, D 070
Temperature display
Microprocessor control; This is not a safety (limit) control.
0.7 lb. (330 g), Enclosure C, PVC plastic
4-3/4” H x 2-7/8” W x 7/8” D (120 x 74 x 22 mm)
CSA C US, CSA 22.2 No 24 and UL 873, meets class B: ICES & FCC Part 15
Indoor use only, -20 to 120°F (-30 to 50°C), < 90% RH non-condensing.
24 V (ac) ±10%, 50/60 Hz, 1.3 VA or 24 V (dc) ± 10% 0.02 A
240 V (ac) 8 A , 1/4 hp
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
Universal Sensor 071.
Ten year memory backup
±0.5°F (±0.3°C) with up to 500 feet (150 m) of 18 AWG wire to sensors.
-85 to 302°F (-65 to 150°C)
-40 to 239°F (-40 to 115°C)
1 to 40°F (1 to 22°C)
3 to 40°F (2 to 22°C)
0 to 19 min. 50 sec.
30 sec. to 19 min. 50 sec.
— Heating / Cooling
— Fahrenheit / Celsius
Meets Class B:
Canadian ICES
FCC Part 15
Made in Canada
H1094G
tektra 905-01
Power 24 V (ac) ± 10% 50/60 Hz 1.3 VA
24 V (dc) ± 10% 0.02 A
Relay 240 V (ac) 8 A 1/4 hp
F C
PRGM
HEAT
Setpoint
COOL
Differential
Delay/Cycle
Item
PWM
On
Off
One Stage Setpoint
Control 150
Made in Canada
No Power
1 2 3 4
6 7
Signal wiring must be 5
Power
rated
at least 300 V N/C Sensor
Com
N/O
C- R+
Date Code
Literature
Control
Packaged weight
Dimensions
Approvals
Ambient conditions
Power supply
Relays
Sensors
included:
Programmed settings
Control accuracy
Temperature display
Setpoint
Differential (Bang/Bang)
Differential (PWM)
Time Delay (Bang/Bang)
Cycle Length(PWM)
System Operation & Specifications
The One Stage Setpoint Control 150 is used to enable a boiler in order to maintain a constant temperature in a DHW recirculation loop
and storage tank.
Piping and Heat Source Details A dedicated boiler provides hot water to a continuously circulating domestic hot water loop and
storage tank.
Setpoint Operation Once the 150 Control is powered up, the installer / operator is required to set the Setpoint, Differential, and Delay
settings on the 150. The control operates in an On / Off Differential mode. The 150 uses the input from the Universal Sensor 071 (S1)
to determine the temperature of the domestic hot water. Once the water temperature drops below the Setpoint minus half of the
Differential setting, the 150 enables the boiler. Once the water temperature rises above the Setpoint plus half the Differential setting,
the 150 turns the boiler off and if the installer / operator has set a Delay length, the 150 then starts its Delay timer. During the time
that the Delay is counting down, the 150 will not turn on its relay. This feature allows the boiler a minimum off time between cycles.
Additional Functions Additional control functions are listed in the table in the Setpoint Controls section of the Product Catalog I 000.
Control Systems
tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 5100 Silver Star Road
Vernon, B.C. Canada V1B 3K4
Tel. (250) 545-7749 Fax. (250) 545-0650
Product design, software and literature are Copyright © 2008 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
All specifications are subject to change without notice.
Printed in Canada. A 150-3 - 12/08
Printed in Canada on recycled paper by
Wayside Press Ltd. Vernon / Kelowna, B.C.