Technical data

OM 1191 93
Appendix
Figure 16: MD5 RoofPak Condenser Fan Speed Control
MD5 RoofPak MicroTech III
APPLICABLE TO SAF, EAF AND RAF.
A+1/2.12
WHITE
B-1/2.13
BLACK
8
RJ- REMOTE KEYPAD CONNECTION
29 A+
30 B- 45
+NB
VFD10 X1A
SAF SCR 1 SHIELD OF ALL SIGNAL CABLES +NB
SPS1 DUCT OR BUILDING
MD5 AI1 2 WHT TB1(-) STATIC
PRESSURE
AGND 3 BLK TB1(+)
B
L 10V 4 DRN +NB
A J SPS-X
C AI2 5 WHT TB1(-)
NA ON RAF / EAF
K
AGND 6 BLK TB1(+)
AO1 7
J
AGND 8
24V 10
9
YELLOW
GND 11
J
DCOM 12 Jumper to establish digital ground reference
to internal 24VDC supply.
DI1 13 MB
C63 R63
DI2 14 DHL Run Enable MB
9 5 R25
DI3 15 Gas Heat Run Input
BUS
TERMINAL *
DI4 16 Iso. Damper Interlock
DI5 17 R28
MB
XIB
* Top pins jumpered to the Modbus "terminated" position
JUMPERS** RO1C 17
ma ma
** Top 2 pins jumpered to the milliamp position
RO1A 18
RO1B 19
V V
AI1 AI2