AAON MODGAS-X, Техническое руководство

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8
MODGAS-X Technical Guide
WIRING
Single Modulating Valve No Staging - Stand-Alone Wiring
Single Modulating Valve No Staging -
Stand-Alone Wiring
This configuration can use either the MAXITROL
®
0-20 volt
valve(s) or the MAXITROL
®
EXA STAR 0-10 volt stepper
valve(s)—configured at the factory. See Appendix C, page 36
for depiction.
If using a MHGRV-X Module along with the MODGAS-X
module in Stand-Alone Mode, the SAT Sensor always connects
to the MODGAS-X.
WARNING:
Do not connect power to VOUT/Ground
terminal block.
Fan Enable And
Modulating Heat Enable
Low Speed Fan
See for jumper settings.
Only one Supply Air Temperature Sensor
can be used per application.
Stand-Alone Mode SAT OPTIONS Table
24 VAC power input terminals
maximum power consumption
One Gas Valve = 18 VA
Two Gas Valves = 33 VA
Note:
1. 24 VAC must be connected so
that all ground wires remain common.
2. All wiring to be in accordance with
local and national electrical codes
and specifications.
40 VA
transformer
minimum
18-30 VAC
GND
Line
Connect SAT and GND Input to
Reheat board’s SAT Input if
applicable.
0-10 VDC
External Reset
Signal
-
+
Heat Enable
Signal (24 VAC)
W1
Supply Air
Temperature
Sensor
Mount in unit
supply air duct.
GV2
GV1
CR1
H1
CR2
Two gas valves
can be connected
as shown
MODGAS-X
AAON P/N: ASM01668
LABEL P/N:
G041210
E-BUS
CONNECT
I2C
CONNECT
+24
V
A
C
GND
CONTACT RATING
@ 24 VAC
IS 1 AMP MAX
VOUT
GND
GAS VALVE
TERMINALS
COMM
RELAY OUTPUT
TERMINALS
INPUT TERMINALS (TYPE)
HEAT EN (BI)
AUX. (BI)
GND
RESET IN (AI)
SAT IN (AI)
GND (AI)
GND
AUX. (AI)
AUX 1
LOW SPEED
FAN
AUX 2
YS102378 REV 1
Figure 2: Single Modulating Valve No Staging Stand-Alone Wiring