Reznor B5SM Option - Installation - Economizer User Manual
Page 5
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Modulating Ec
onomizer
560199
(B4,B5)SM 090/120 Series A
ir Handler
1.
C & W2 t
o be connected t
o optional elect
ric heat.
2.
Remove BLAC
K w
ire fr
om air handler low voltage terminal
board Y ter
minal and connect
to YELLO
W w
ire fr
om
economizer
.
3.
Second St
age refri
gerant cooli
ng w
ith optional
economizer
installed.
A 2 stage t
hermost
at is requi
red for
simult
aneous operation of
the economiz
er and refr
igerant system.
Connect Y2 f
rom 2 st
age thermos
tat t
o
BLUE w
ire fr
om economiz
er.
4.
Heat Pump E
conomizer
Relay. For heat pump appl
ications
only. Required for proper
operation of
an
economizer
(optional)
in the heat pum
p Heating mode.
CONN
ECT TO "R
" FOR A
C ONLY A
PPLICA
TIONS
.
Date: F
ebruary 4, 2011
Su per sedes:
Draw
n by:
Unit #: 47-
374-01
Di a gram#:
4737401w
Ap proved
by:
HA
RNESS DETA
IL
E# = WIRE END DESI
GNA
TION
E2
STUD #6 18 Ga. Wire
E3
Fema
le ¼ Q
uick Disc.
E4
Male ¼ Q
uick Disc. I
nsul
E6
Wire Nut Size 73B
WIRE COLOR CODE
BLK
Black
BLU
Blue
BRN
Brow
n
GRN
Green
GRY
Gray
ORN
Orange
RED
Red
VIO
Violet
YE
L
Y
ellow
WHT
White
COMPONENT CODE
Economiz
er
C7400A
Fresh Air Enthalpy Sensor
C7150
Mixed Air Sensor
MS7510A
Damper Actuator 24v
W7212A
Logic Module
TB-11
Terminal Block
Re vi sion
Change
Date
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