Toshiba Carrier TCB-IFDMR01UP-UL Service Manual page 43

Terminal AI3 / AI3: Analogue Input Capacity control
• Be sure not input more than DC10 V in analogue input terminal.
• To ease the integration of the DX COIL with the DDC the capacity control is able to operate with a STEPPED or
LINEAR function from the analogue input.
• To select either a STEPPED (default) or LINEAR response, from the analogue input, use SW501 Bit4.
• Terminal AI4 / AI4 cannot be used.
SW501 Bit4
OFF STEP response to analogue input
ON LINEAR response to analogue input
TCB-IFDMR01UP-UL
(Terminal block with relay)
Shield wire MAX. 656'2 (200 m)
AI3
Input
0 - 10 V
AI3
Capacity control STEP
SW501 Bit4
ON OFF
(Linear) (Stepped) ΔT = TA (°F) - Set temp. (°F)
10.00 10.00
(Max demand, Approx. ΔT = +4°F (+2°C)
9.50 8.20
9.00 7.45
8.50 6.70
(Approx. ΔT = +2°F (+1°C)
8.00 5.95
7.00 5.20
6.00 4.45
5.00 3.70
(Keep the current temperature, ΔT = 0°F)
4.00 2.95
3.00 2.20
2.00 1.45
(Min demand, Approx. ΔT = -2°F (-1°C)
1.50 0.70
STEP 0 (No operation)
0.00 0.00
Function
Locally procured
0 - 10 V Signal (+)
GND (-)
Cooling Mode
(V)
STEP 11
(Stepped)
8.00
STEP 10
7.25
STEP 9
6.50
STEP 8
5.75
STEP 7
5.00
STEP 6
4.25
STEP 5
3.50
STEP 4
2.75
STEP 3
2.00
STEP 2
1.25
STEP 1
0.50
SW501 Bit4
ON OFF
(Linear) (Stepped)
10.00 10.00
9.00 9.70
8.00 8.95
(Linear)
7.00 8.20
9.30
6.00 7.45
8.80
5.00 6.70
8.30
5.95
4.50
7.80
4.00 5.20
6.80
3.50 4.45
5.80
3.00 3.70
4.80
(Keep the current temperature, ΔT = 0°F)
2.50 2.95
3.80
2.00 2.20
2.80
1.50 1.45
1.80
(Min demand, Approx. ΔT = -2°F (-1°C)
1.00 0.70
1.30
0.00 0.00
- 43 -
Heating Mode
Capacity control STEP
ΔT = Set temp. (°F) - TA (°F)
STEP 13
(Max demand, Approx. ΔT = +4°F (+2°C)
(Stepped)
STEP 12
STEP 11
STEP 10
STEP 9
STEP 8
(Approx. ΔT = +2°F (+1°C)
STEP 7
STEP 6
STEP 5
STEP 4
STEP 3
STEP 2
STEP 1
STEP 0 (No operation)
(V)
(Linear)
9.50 8.80
8.75 7.80
8.00 6.80
7.25 5.80
6.50 4.80
5.75 4.30
5.00 3.80
4.25 3.30
3.50 2.80
2.75 2.30
2.00 1.80
1.30
1.25
0.50 0.80