Lennox PRODIGY M2 User Manual

9. Supply Air Delivery
Page 39
PRODIGYT M2 UNIT CONTROLLER
9.2.9. VAV Staged Units: B, C, D, and E Boxes
ECTO 0.01 option 3 (MSAV)
Oti
Staged Speed
p()
Operation
(1)
Default ECTO
This configuration is a special
-
case application
Cooling compressor 1 51% 0.05
This
config
u
ration
is
a
special
-
case
application
where the blower s
p
eed is sta
g
ed b
y
the factor
y
Cooling compressor 2 51% 0.14
where
the
blower
speed
is
staged
by
the
factory
installed VFD for fixed speeds for different op-
ti Th diff t d t
Cooling compressor 3 51% 0.15
eration. There are seven different speed stages,
one per cooling stage (4) one for ventilation one
Cooling compressor 4 51% 0.16
one per coo
li
ng s
t
age
(4)
, one
f
or ven
til
a
ti
on, one
for heatin
g
and one for o
p
eration durin
g
smoke
Ventilation or economizer free cooling 51% 0.03
for
heating
and
one
for
operation
during
smoke
alarm modes. Network commands energize the
bl hi h ill l ith d d
Smoke Alarm Modes 51% 0.02
blower which will cycle with demand.
Heating 51% 0.04
(1)
Staged % speed must be adjusted for each operation.
9.3. VFD Control
Th M2 i l tibl
Speed % Motor Frequency (Hz) VFD Control Voltage (VDC)
The M2 is only compatible
ith th f t i t ll d
0 0 0
with the factory installed
variable frequency drives
10 6 1
variable frequency drives
(VFD) in VAV units used to
20 12 2
(
VFD
)
in VAV units used to
control the supply blower
30 18 3
con
t
ro
l
th
e supp
l
y
bl
ower
and exhaust fan(s) The ana
-
40 24 4
and
e
x
ha
u
st
fan(s)
.
The
ana
-
log control for the VFDs is
50 30 5
log
control
for
the
VFDs
is
0
−
10VDC. This manual uses
60 36 6
0
−
10VDC
.
This
manual
uses
p
ercent
(
%
)
for all blower
70 42 7
percent
(%)
for
all
blower
and fan s
p
eeds. For exam-
80 48 8
and
fan
speeds
.
For
exam
ple, 50% blower speed
90 54 9
ple,
50%
blower
speed
equals 30Hz equals 5VDC.
100 60 10
9.4. Supply Bypass Damper Control
Th M2 i l tibl ith b
Bypass Damper Position (% ) Control Voltage (VDC)
The M2 is only compatible with bypass
damper actuators specified in the Engi
0 (closed) 10
damper actuators specified in the Engi-
neering Handbook Specified dampers
10 9.2
neering Handbook.
S
peci
f
ied dampers
are used to control the supply air vol-
20 8.4
are use
d
t
o con
t
ro
l
th
e supp
l
y a
i
r vo
l
-
ume for constant air volume w/bypass
30 7.6
u
me
for
constant
air
v
ol
u
me
w
/b
y
pass
damper (CAVB) zoning applications.
40 6.8
damper
(CAVB)
zoning
applications
.
The analog control for the actuator is a
50 6.0
The
analog
control
for
the
actuator
is
a
2−10VDC with 10VDC bein
g
full
y
60 5.2
2−10VDC
with
10VDC
being
fully
closed. This manual uses
p
ercent
(
%
)
70 4.4
closed
.
This
manual
uses
percent
(%)
for bypass damper position. For exam-
80 3.6
for
bypass
damper
position.
For
exam
ple, 70% bypass damper position
90 2.8
p, % yp p p
equals 4.4VDC.
100 2.0

Lennox PRODIGY M2 Specifications

General

Brand	Lennox
Model	PRODIGY M2
Category	Controller
Language	English