CSI MR-AHU, Installation Sheet

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MR-AHU Installation Sheet
Installation Sheet (TCON154 11/97) 1
Controller Installation
1. Check the mounting location for the MR-AHU. The
available area must measure at least 4.3"
×
8" (11.0
×
20.3
cm) and should be in a moisture free container away from
anylarge electrical devices. The screw holes are 3.75"
×
7.5"
(9.5
×
19.1 cm) as shown in Figure1, “MR-AHU
(Covered)” , and will require phillips or slotted pan head
screws.
2. You will not need to remove the plastic cover to install the
MR-AHU, or any of the connections. To replace the 4A FB
fuse, remove the plastic cover, remove the old fuse and
install a new fuse (see
Figure2, “MR-AHU (Cover
Removed)” ).
Connecting the Input Devices
Warning: Ensure that no power is connected to the MR-AHU
during electrical installation. Failure to disconnect
power from all interconnected equipment when
performing electrical installation may result in damage
to the components and/or electrical shock or burns
1. Connect the external input devices (contact or thermistor)
leads to an input terminal, TB4 – 1 through TB4 – 4 (Input
1 to Input 4, see
Figure3, “Input Device Connections” ).
2. Connect the other input device lead (common return lead)
to the signal ground terminal, TB4 – 6 (Ground).
.
Figure 1. MR-AHU (Covered) Figure 2. MR-AHU (Cover Removed)
GROUND
OUTPUT 6
OUTPUT 5
OUTPUT 4
OUTPUT 2
OUTPUT 3
OUTPUT 1
TRIAC OUTPUTS 24VAC. 0.5A EACH. 2.0A TOTAL
1
2
3
4
5
6
TB4
INPUTS
GROUND
+12V
INPUT 4
INPUT 3
INPUT 2
INPUT 1
INPUT PORT
TEST
D1
U1
TB5
OUTPUTS
S1
1
2
3
4
5
6
7
SENSOR
LAN
P1
TB1
TB2
AC PWR
TB3
12
1
2
3
12
LAN +
LAN –
24V ~
GROUND
SIGNAL
POWER
GROUND
PWR
LAN
PORT
I/STAT
PORT
ADDRESS-01
ADDRESS-02
ADDRESS-03
ADDRESS-04
ADDRESS-05
FUNCTION-06
FUNCTION-07
FUNCTION-08
FUNCTION-09
FUNCTION-10
FUNCTION-11
FUNCTION-12
SWITCHES
OUTPUT 1
TEST
OUTPUT 2
OUTPUT 3
OUTPUT 4
OUTPUT 6
OUTPUT 5
TRANSMIT
RECEIVE
STATUS DISPLAY
Micro-Regulator
UL
LISTED
ENERGY MANAGEMENT
EQUIPMENT
POWERED BY A SINGLE
CLASS 2 SOURCE
MODEL:
SERIAL NO.:
POWER:
24V – 7VA
(55VA MAX)
MADE IN USA
BY:
CONTROL SYSTEMS
INTERNATIONAL
P.O. BOX 59469
DALLAS, TX
75229
MR-AHU
8.00 "
7.50 "
4.30 "
3.75 "
DIN Rail
Mounting
Clips
Test
D1
1
2
3
4
5
6
7
8
TX
RX
U1
TB5
OUTPUTS
S1
1
2
3
4
5
6
7
1
2
3
4
5
6
TB4
INPUTS
330815–
SENSOR
LAN
P1
TB1
TB2
AC PWR
FS1
TB3
12
12
1
2
3
COPYRIGHT 1995 CSI, INC
MADE IN USA
Inputs
24 VAC Power Input
Sub-LAN Port
I/STAT Port
Address/Function
Select Dip Switches
LED Communications
Indicators
Control Outputs
4 A FB
Replaceable Fuse
Figure 3. Input Device Connections
1
2
3
4
5
6
TB4
INPUTS
10K ohm Thermistor
GROUND
+12V
INPUT 4
INPUT 3
INPUT 2
INPUT 1 INPUT PORT
1
2
3
4
5
6
TB4
INPUTS
10K ohm Thermistor
GROUND
+12V
INPUT 4
INPUT 3
INPUT 2
INPUT 1 INPUT PORT
Mixed Air
Temperature
Sensor
S/P/L Contact
MR-AHU with Binary Load
AHU_2100 and Earlier: MR-AHU with Binary Load
AHU_2200 and Later: