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STEP 4: Blower Activation Feature Explanation
S t th Blow r Activation switch to “ON”, s Figure J, to allow
th Humidifi r Control to activat th furnac fan for additional
humidification. This may b r quir d if th humidifi r is mount d
on a h at pump or a furnac with short run cycl s. Wh n using
th Blow r Activation f atur , Mod l 400, 500, 600 and 700
s ri s humidif rs must b plumb d to hot wat r for ff ctiv
op ration.
Wh n th Blow r Activation switch is “ON”, th Humidifi r
Control will turn on th HVAC blow r wh n humidity is r quir d.
In th “OFF” position, th humidifi r will only op rat if humidity
is r quir d and th HVAC syst m is op rating.
Wh n th Blow r Activation switch is “ON”, th Humidifi r
Control may xt nd th HVAC blow r aft r a h at call for up to
two hours. If th HVAC syst m has b n idl for on hour, th
control will turn th blow r on for thr minut s to sampl
hous hold air to d t rmin if humidity is n d d.
NOTE: If us d in conjunction with an Aprilair 8570
Communicating Th rmostat, and th blow r activation f atur is
d sir d, DO NOT wir th A B communication t rminals.
Th Mod l 62 shipp d with th Mod l 800 St am Humidifi r is
factory s t to “OFF”. Th Mod l 62 do s not hav th “Chang
Wat r Pan l” light on th Control. Th Canist r Chang indicator
for th Mod l 800 is on th humidifi r. STEP 1: Mount the Humidifier Control
Humidifi r Control must b mount d on th R turn Duct, at l ast
6 inch s upstr am of th following (s Figure D):
• Humidifi r
• Humidifi r Bypass Ductwork (if applicabl )
• Fr sh Air Intak Ductwork (if applicabl )
For accurat humidity control, mount th Humidifi r Control at
l ast 12 inch s upstr am of th St am Humidifi r disp rsion tub .
Ambi nt op rating t mp ratur of th Humidifi r Control is to b
from 20°F to 120°F to pr v nt damag to th control display.
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