McQuay 5RT90BR Montageanleitung Seite 25

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Refer table below for installation recommendations:
Input Rated voltage
G
Y1
Y2 24V AC
W1
W2
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When the controller main board is confi gured as thermostat control, the remote controller is used for monitoring
purpose only.
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Unit needs to be restarted (power off and on) whenever dip switch setting is changed.
(ii) BMS control (TB_BMS-I)
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To use this control, set Dip Switch Setting: SW3 - ON (default is OFF) and panel parameter G8 to '1' (default is '0').
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G8 = Control Type
0 = Panel
1 = BMS
2 = DEC
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For TB_BMS-I, there are 3 control inputs:
unit on/off ; operating mode (cool-0/heat-1); and set point (4~20mA).
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Refer below table for installation recommendations:
Input TB_BMS-I
On/Off
Operating mode
Cool/Heat set point
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When the controller main board is confi gured as BMS control, the remote controller is used for monitoring
purpose only.
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Unit needs to be restarted (power off and on) whenever dip switch setting is changed.
(iii) Dry contact output (TB_BMS-O)
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For TB_BMS-O, there are 4 monitoring outputs: error alarm; output1; output2; and defrost signal.
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Refer table below for installation recommendations:
Input TB_BMS-O
Alarm output (AL)
Output1 (O1)
Output2 (O2)
Defrost signal (DFRT)
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The output signals will vary depending on the confi guration of controller main board, whether it is thermostat
control or BMS control.
(1) For thermostat control, the outputs are indicated as shown in the table below.
Thermostat input
(SW1-ON)
G Y1 Y2
0 0 0
1 0 0
X 1 0
X 1 1
X 0 X
X 0 X
X X X
X X X
Remark: X = Don't care.
(2) For BMS control, the outputs are indicated as shown in the table below.
BMS input
(SW3-ON)
OPERATING
ON/OFF
MODE
0 0
0 1
1 0
1 1
X X
X X
Remark: X = Don't care.
Rated current
5mA
Rated voltage Rated current
24V AC 5mA
24V AC 5mA
- 4~20mA
Rated voltage
230V AC/125V AC/30V DC
230V AC/125V AC/30V DC
230V AC/125V AC/30V DC
230V AC/125V AC/30V DC
ERROR DEFROST
W1 W2
0 0 X
0 0 X
X X X
X X X
1 0 X
1 1 X
X X 1
X X X
ERROR
COOL/HEAT
SET POINT
X X
X X
X X
X X
X 1
X X
Wire size
AWG18~22
ON
OFF
Wire size
AWG18~22
Rated current (A)
1/3/3
2/3/3
3/3/3
4/3/3
Alarm output Output1
(AL) (O1)
X X
X X
X X
X X
X X
X X
X 1
1 X
Alarm
output
DEFROST
(AL)
X X
X X
X X
X X
X 1
1 X
1 2 3 4 5 6 7 8
Wire size
AWG18~22
Defrost
Output2
signal
(O2) (DFRT)
0 0 X
0 1 X
1 0 X
1 0 X
1 1 X
1 1 X
X X X
X X 1
Defrost
Output1 Output2
signal
(O1) (O2) (DFRT)
0 0 X
0 1 X
1 0 X
1 1 X
X X X
X X 1
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