SPYDER® LON PROGRAMMABLE, VAV/UNITARY CONTROLLERS
19 63-2685—03
Fig. 22. Controller wiring diagram (model PUL6438S shown) with 4 to 20 mA enthalpy sensors and digital inputs.
(For note 2, refer to Fig. 15.)
1
2
1
2
EARTH GROUND WIRE LENGTH SHOULD BE HELD TO A MINIMUM. USE THE HEAVIEST GAUGE WIRE AVAILABLE, UP TO 14 AWG (2.O MM
2
)
WITH A MINIMUM OF 18 AWG (1.O MM
2
), FOR EARTH GROUND WIRE.
TO ASSURE PROPER ELECTRICAL CONTACT, WIRES MUST BE TWISTED TOGETHER BEFORE INSERTION INTO THE TERMINAL BLOCK.
ANALOG OUTPUTS FROM SENSOR ARE 4 TO 20 mA SIGNALS. A 499 OHM 1% TOLERANCE (OR BETTER) PRECISION RESISTOR IS
REQUIRED TO DRIVE THIS AND OTHER 4 TO 20 mA SIGNAL DEVICES. PLACE THIS RESISTOR AS CLOSE AS POSSIBLE TO THE DRIVEN
DEVICE.
M29757
AO-1
DI-1
UI-1
UI-2
COM
24 VAC
24 VAC
COM
+
-
DO-1
DO-2
DO-3
DO-4
DO-8
UI-3
COM
3
COM
COM
COM
DISCHARGE
AIR TEMP
COM
UI-6
OUTDOOR
ENTHALPY
RETURN
ENTHALPY
20 VDC
20 VDC
3
499
2
COMP2
COMP 1
HEAT 2
HEAT 1
FAN
UI-4
499
SBUS1
SBUS2
AO-1
COM
AO-2
AO-3
COM
UI-1
COM
UI-2
UI-3
COM
UI-4
UI-5
COM
UI-6
DI-1
DI-2
COM
DI-3
20V DC
DI-4
NET-2
NET-1
SHLD
EGND
24 VAC
24VAC COM
DO-1
COM
DO-2
DO-3
DO-4
DO-5
COM
DO-6
COM
1 2 3 4 5 6 7 8
1 0 9 2 3 4 5 6 7 8 0 9
1 1 1 1 1 1 1 1 1 2 1
1 2 3 4 5 6 7 8 0 9
2 2 2 2 2 2 2 2 2 3 3
1 2 3 4 5 6 7 8 0 9
3 3 3 3 3 3 3 3 4
DO-7
DO-8
COM
LONWORKS-BUS
LONWORKS-BUS
1
11
10 9
8
7
65
4
3
2
12
GND
SENSOR
LON +
LON -
SETPT
LED
OVERRIDE
24 VAC
HUM
DIP SWITCH S3
(TR23 AND TR24
ONLY.)
ON
SW1 SW2 SW3
DIP SWITCH S2
ON
SW1 SW2
DIP
SWITCH
S1
ON
SW1 SW2
DO NOT CHANGE
THIS SWITCH
POSITION.
4
TR23-H
ONLY
DIP SWITCH S1 FOR HUMIDITY MODELS ONLY. SEE TR23 INSTALLATION INSTRUCTIONS, FORM NO. 62-0267,
FOR CONFIGURATION DETAILS.
4
UI-5
OCCUPANCY SENSOR
(CONTACTS CLOSED
EQUALS OCCUPIED)
WINDOWS CONTACTS
(CONTACTS CLOSED
EQUALS WINDOW CLOSED)
2
DI-2
COM
DI-3
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