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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