tekmar 363 Universal Reset Control Installation User Manual
Page 14
14 of 40
Copyright © D 363 -
12/08
VARIABLE SPEED INJECTION (MIXING = VAR)
A standard wet rotor circulator is connected to the 363 on the
Cls / Var
terminal (16). The 363 increases or decreases the power output to the
circulator when there is a
Mix Demand. The circulator speed varies to
maintain the correct mixed supply water temperature at the mix sensor. For
correct sizing and piping of the variable speed injection driven circulator,
refer to essay E 021. A visual indication of the current variable speed output
is displayed in the LCD in the form of a segmented bar graph. Two small
indicators at the top of the graph indicate whether the output is increasing
or decreasing.
FLOATING ACTION (MIXING = FLOT)
A floating action actuator motor is connected to the 363 on the
Opn and Cls
/ Var terminals (15 and 16). The 363 pulses the actuator motor open or close
to maintain the correct supply water temperature at the mix sensor when
there is a
Mix Demand. The mixing valve that the actuator is connected to
can be either a 2-way, 3-way or 4-way valve. A visual indication as to
whether the control is currently opening or closing the mixing valve is
displayed in the LCD with the words Open and Close. Also, a visual
indication of the current position of the valve is displayed in the LCD in the
form of a segmented bar graph.
STORAGE (MIXING = STOR)
Refer to Section E on storage systems for a description of this selection.
Section D3 —Alternate Mixing Demands
In addition to using conventional thermostats to provide a mixing demand as described in Section D1, the 363 can use a number of other
methods to provide a
Demand.
10K 1 INDOOR SENSOR ( 10K 1 = INDR)
Set the 10K 1 item to INDR to add an indoor sensor for temperature control of a single zone
mixing system. The indoor sensor is connected to the
Com and 10K 1 terminals (20 and 21).
In addition, power must be applied to the
Mix Demand terminals (1 and 2) as described in
Section D1. With the indoor sensor connected, the 363 is able to sense the actual room
temperature. With this information, the 363 provides a more constant water flow through the
mixing system. At the same time, indoor feedback fine tunes the supply water temperature in
the mixing system to prevent over heating or under heating. To adjust the room temperature
for the mixing zone, use the MIX ROOM
Occupied or UnOccupied setting in the Adjust menu
at the control.
10K 1 ZONE CONTROL (10K 1 = MIX)
Set the 10K 1 item to MIX to add indoor temperature feedback control of multiple mixing zones.
Control of mixing zones is provided by connecting a tekmar zone control to the 363. The zone
control provides its own internal mixing demand to the 363. In this case, there is no need to
provide an external
Demand as described earlier in Section D1. The zone control is capable
of automatically adjusting the MIX TRG temperature to improve building occupant comfort and
system performance.
10K 1 SLAB SENSOR (10K 1 = SLAB)
Set the 10K 1 item to SLAB to add a slab sensor for temperature control of a single zone mixing
system. The 363 can use a slab sensor to control the actual slab temperature. A slab sensor
is placed in the slab and connected to the
Com and the 10K 1 terminals (20 and 21). Power
must be applied to the
Mix Demand terminals (1 and 2) as described in Section D1. With the
slab sensor connected, the 363 will limit the mixing supply temperature in order to maintain
the slab sensor between the SLAB MIN and SLAB MAX settings.
Slab Minimum (SLAB MIN)
The SLAB MIN sets the minimum allowed core temperature of the slab as long as the control is not in a WWSD. Caution should be
used when adjusting the SLAB MIN setting as this may lead to overheating of the zone during mild conditions. If the AWAY setting
is selected in the Schedule menu, the 363 ignores the SLAB MIN setting.
Slab Maximum (SLAB MAX)
The SLAB MAX sets the maximum allowed core temperature of the slab. If the slab is to be maintained at a fixed core temperature,
set SLAB MAX and SLAB MIN items to the same setting.
tekmar
Indoor Sensor
tekmar
363 Control
LR 58233
E150539
2
1
%
LR 58223
N R T L / C
Universal Reset Control 363
Mixing, Boiler & DHW
Mix Demand
Boiler Demand
DHW Demand
Setpoint Demand
Minimum
Maximum
R
Menu
Item
°F
View
DHW
1
LR 58233
E150539
tekmar
Zone Control
Zone Control 367
One & Two Stage / One Stage & Floating
Power
Heat Required
Zone 2 / Hi stage /
Close / Ventilation
System Pump
24 hr. Timer
• Dial the desired duration
of the UnOccupied period.
• Press start button at the time of day
you want the UnOcc. period to begin.
Timer Active light turns on.
Start
UnOccupied
Duration
0 = always Occupied
24 = always UnOccupied
Zone 1 / Lo stage /
Open / Cooling
2
3
4
1
Zone 4 / Hi stage
Close
Zone 3 / Lo stage
Open
5
6
Zone 6 / Hi stage
Close
Zone 5 / Lo stage
Open
70
°F
(21
°C)
40
(4)
100
(38)
UnOccupied
Occupied
Optimum Start / Stop
UnOccupied
Timer Active
0
12 hrs.
24
6
18
tekmar
363 Control
Universal Reset Control 363
Mixing, Boiler & DHW
LR 58223
N R T L / C
R
Menu
Item
°F
1
View
2
1
%
Mix Demand
Boiler Demand
DHW Demand
Setpoint Demand
WWSD
Minimum
Maximum
DHW
tekmar
363 Control
LR 58233
E150539
2
1
%
LR 58223
N R T L / C
Universal Reset Control 363
Mixing, Boiler & DHW
Mix Demand
Boiler Demand
DHW Demand
Setpoint Demand
Minimum
Maximum
R
Menu
Item
°F
View
DHW
1
tekmar
Slab Sensor