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Model VSU Make-Up Air
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6. Set the Unit’s Operating Temperature
Set the operating temperature. The operating
temperature setting depends on which Maxitrol controller
is used.
IMPORTANT
If the flame signal is not above 1.25 VDC and steady,
consult the troubleshooting section.
7. Flame Signal Check
To measure the flame signal connect a standard DC
voltmeter to the flame amplifier test jacks + and -
(com) as shown to
the right. The flame
signal should be
above 1.25 VDC and
steady.
Check the flame
signal with the
burner at pilot only,
minimum fire, mid
fire and high fire.
DC Voltmeter and
Flame Amplifier
Maxitrol Series 14
The Maxitrol Series 14 should be set to the desired
discharge temperature. The temperature selector is built
into the amplifier.
Series 14 Discharge Temperature Setting
Set the discharge temperature
Typical: 65ºF