tekmar 365 Mixing Control - Manual

Copyright © D 365 - 06/00 1 of 16
Outdoor Reset Strategy. . pg. 2
Variable Speed Pump . . . pg. 3
Sequence of Operation . . pg. 5
Installation . . . . . . . . . . . . pg. 7
Settings . . . . . . . . . . . . . . . pg. 11
N
0.4
2.0
3.6
Heating Curve
Dem L
1 2 3 4 5 6
Pmp
Mixing Control 365
Dem Pmp
8 9
150 °F
100 200
Max./Setpoint
Minimum
Boiler Return
Motor Speed /
Pump Response
Test
Boiler
Occupied
35
(2) 105
(41)
70 °F
(21 °C)
Unoccupied
35
(2) 105
(41)
70 °F
(21 °C)
H1073
OR
Variable Speed and 4-20 mA
130 sec.
30 230 Off
100 °F
150
60
7
Var.
Pmp
90
70
50
30
10
Power WWSD
UnOcc.
Switch
Min.
Return
Boiler
Heat
Demand
Max. or
Setpoint
Pump
Setpoint
Permanent Heat Demand
Indoor Sensor
Zone Control
Boiler on when 25% open
Reset
Boiler on when 10% open
External Heat Demand
OR
M
Heat Power System
Use Nº 20 AWG or larger copper conductors rated for at least 75 °C and 300V.
% of full
output
R
R
LR 58223 E 1 5 0 5 3 9
Listed
5T62
Input:
Heat Demand
signal.
Optional
120Vac
Power Supply
Output: Turn on
system pump
Output: Control
variable speed pump
Output:
4-20mA device
Output:
Turn on boiler
Input: Return
Sensor 071.
Optional
Input:
Unoccupied
signal (030
Timer) Optional
Input: Indoor
Sensor 074
Optional
Input: 2k RTU
Optional
Input: Supply Universal
Sensor 071. Included
Input: Outdoor
Sensor 070
Included
Manufactured
in Canada by
Date
S/N
2093
1234567
Power: 120V 50/60Hz 300VA
System pump: 120Vac 12A 1/3 hp, pilot duty 480VA 4A
Var pump: 120V 50/60Hz 2.2A 1/6 hp, internally fused
Relay: 120Vac 10A 1/4 hp, pilot duty 240VA 2A
Enclosed Energy Management Equipment
13 14
Sen RTU
2K 10K
12 15
Sen Sen Sw
UnO
16 17
Sen
Sup Out
Do not apply power here
Sen
18 19
–
Com
Sen
Ret
10 11
4-20
1000 Ω max
+
Com Com
1 2 3 4
- Data Brochure
Mixing Control 365
D 365
06/00
R
R
R R
LR 58233 E150539
Mixing Control 365
Occupied
35
(2
) 105
(41)
70 °F
(21 °C)
Unoccupied
35
(2
) 105
(41)
70 °F
(21 °C)
Variable Speed and 4-20 mA
90
70
50
30
10
Power WWSD
UnOcc.
Switch
Min.
Return
Boiler
Heat
Demand
Max. or
Setpoint
Pump
% of full output
The tekmar Mixing Control 365 is a microprocessor-based control with a 120 Vac output for operating
a variable speed injection pump. A 4-20mA output is available for operating devices such as a 4-
20mA actuating motor, modulating gas valve, a mixing valve combination, or for operating a 4-20mA
motor drive for larger variable speed pumps. The variable speed pump or mixing valve regulates the
supply water temperature to a heating system based on the outdoor air temperature, and optionally,
the indoor air temperature. The system is shut down when there is no Heat Demand signal or when
the outdoor temperature is warm enough so that the system no longer requires heat (WWSD).
Testing . . . . . . . . . . . . pg. 13
Error Messages . . . . . pg. 15
Technical Data . . . . . . pg. 16
Limited Warranty . . . . pg. 16
Variable Speed
and 4-20 mA
operating level
Terminal Plugs:
Power and out-
put connections
System
Pump
is on
Unoccupied
temperature
setting
Occupied
temperature
setting
Operating Mode
selector
switches
Terminal Plug:
Sensor and
timer input
Test button and
LED to test main
control functions
Motor Speed
Minimum
Boiler Return
Maximum
Supply/Setpoint
Heating Curve
Control is
maintaining
Minimum Return
Control is
maintaining
Maximum Supply
System is
switched to
Unoccupied
System is in
Warm Weather
Shut Down
120Vac power
supply is on
Heating
is required Boiler is on