AERCO BMK 3.0 LN Nat. Gas Jan 2011 - Manual (Page 114)

APPENDIX H
H-2
CONTROL BOX CONNECTORS
12 10 11 13 14 16 15 17 18 19 21 20 22 23 24
24-PIN CONNECTOR
241
240 242
243
244
245 251
246 250
247
252 254
253
9 6 8 7 5 4 3 1 2
220
221 219
16-PIN CONNECTOR
8 5 4 6 7 9 1 2 3 11 16 14 15 13 12 10
226
213
214 216
215
7 6 7 5 3 4 6 1 2
OUT IN OUT IN IN OUT
DELAYED INTLK EXHAUST TEMP REMOTE INTLK
N.O. C
4 3 5 1 2
NOT USED
N.C. C N.O. N.C.
RELAY
AUX
12 13 14 11
SENSOR EXCIT. (12 VDC)
BMS (PWM) IN
ANALOG IN
OXYGEN SENSOR IN
FLOW SENSOR IN
CO SENSOR IN
+ - - + - + - +
AUX SENSOR IN
SENSOR COMMON IN
- +
1
OUTDOOR AIR SENSOR IN
9 8 7 5 3 4 2 6 10
IN GND
4 1 2 1
- +
2 2 1 3 3
ANALOG OUT
15 16
SHIELD
B
RS-485 IN
A
1 2 4 3 7 8 6 5 9 10 12 11 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 12 11 10 9 13 14 15
231
234 232
233
238 236
235 237 239
INPUT/OUTPUT BOX
+ -
LS2 LS1
LS4
LS3
J3 J2 J1
212
211
0-10V AGND
FROM AIR
TEMP SENSOR
TO VFD
FAULT RELAY
NOT USED
WIRING SCHEMATIC BMK 3.0 DF
208 VAC, 3 PHASE
REF: 68012 REV. G (SHT. 2 OF 2)