AAON MODGAS-X, Техническое руководство

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13
MODGAS-X Technical Guide
WIRING
Two Modulating Valves and up to 13 Stages of Fixed Heat Stand-Alone
NOTE: All relay outputs are normally open
and rated for 24 VAC power only.
1 amp maximum load.
Heat Stage 4 (Fixed)
Heat Stage 5 (Fixed)
Heat Stage 6 (Fixed)
Heat Stage 7 (Fixed)
Heat Stage 8 (Fixed)
Heat Stage 9 (Fixed)
Heat Stage 10 (Fixed)
Heat Stage 11 (Fixed)
Heat Stage 12 (Fixed)
Heat Stage 13 (Fixed)
Heat Stage 14 (Fixed)
Heat Stage 15 (Fixed)
18-30
V
A
C
GND
18-30
VAC
GND
power required
15 VA minimum
E-BUS cable connects to
MODGAS-X
Figure 7: Two Modulating Valves and 13 Stages of Fixed Heat - 12 Relay E-BUS Expansion Module
WARNING:
Observe Polarity! All boards must be wired
with GND-to-GND and 24 VAC-to-24
VAC. Failure to observe polarity will result
in damage to one or more of the boards.
Expansion modules must be wired in such
a way that the expansion modules and the
controller are always powered together. Loss
of power to the expansion module will cause
the controller to become inoperative until
power is restored to the expansion module.