background image

03

6

-

2

150

2

-003-

A

-1105

4

2

Unit

a

ry Products Group

GUIDE SPECIFICATIONS

GENERAL

Units sh

a

ll be 

ma

nu

fa

ctured by 

Y

or

k

 Intern

a

tion

a

l Unit

a

ry 

Products Group in 

a

n I

S

O 9001 certi

f

ied 

fa

cility.

Y

or

k

's 

S

unline 

2

000

TM

 units 

a

re convertible sin

g

le p

a

c

kag

e-

units. 

A

lthou

g

h the units 

a

re pri

ma

rily desi

g

ned 

f

or curb 

m

ountin

g

 on 

a

 roo

f

, they c

a

a

lso be sl

a

b-

m

ounted 

a

g

round 

level or set on steel be

am

a

bove 

a

 

f

inished roo

f

. Coolin

g

 

only, coolin

g

 

w

ith 

ga

s he

a

a

nd coolin

g

 

w

ith electric he

a

m

odels 

a

re 

a

v

a

il

a

ble 

w

ith 

a

 

w

ide v

a

riety o

f

 

fa

ctory-

m

ounted 

options 

a

nd 

f

ield-inst

a

lled 

a

ccessories to 

mak

e the

m

 suit

a

ble 

f

or 

a

l

m

ost every 

a

pplic

a

tion. 

A

ll units 

a

re sel

f

-cont

a

ined 

a

nd 

a

sse

m

bled on 

f

ull peri

m

eter b

a

se r

a

ils 

w

ith holes in the 

f

our 

corners 

f

or overhe

a

d ri

gg

in

g

. Every unit is co

m

pletely piped, 

w

ired, ch

a

r

g

ed 

a

nd tested 

a

t the 

fa

ctory to si

m

pli

f

y the 

f

ield 

inst

a

ll

a

tion 

a

nd to provide ye

a

rs o

f

 depend

a

ble oper

a

tion. 

A

ll 

m

odels (includin

g

 those 

w

ith 

a

n econo

m

i

z

er) 

a

re suit

a

ble 

f

or 

either botto

m

 or hori

z

ont

a

l duct connections. Models 

w

ith 

po

w

er exh

a

ust 

a

re suit

a

ble 

f

or botto

m

 duct connections only. 

For botto

m

 duct, re

m

ove the sheet 

m

et

a

l p

a

nels 

f

ro

m

 the 

supply 

a

nd return 

a

ir openin

g

s throu

g

h the b

a

se o

f

 the unit. 

For hori

z

ont

a

l duct, re

m

ove the supply 

a

nd return 

a

ir p

a

nels 

on the re

a

r o

f

 the unit. 

A

ll non-

S

croll co

m

pressors include cr

a

n

k

c

a

se he

a

ters 

a

nd 

a

ll 

co

m

pressors h

a

ve intern

a

l pressure relie

f

. Every re

f

ri

g

er

a

nt 

circuit includes 

a

 li

q

uid line 

f

ilter-drier, 

a

 disch

a

r

g

e line hi

g

pressure s

w

itch 

a

nd 

a

 suction line 

w

ith 

a

 

f

ree

z

est

a

a

nd lo

w

 

pressure/loss o

f

 ch

a

r

g

e s

w

itch.The unit control circuit 

includes 

a

 

7

VA

 tr

a

ns

f

or

m

er, 

a

 

2

4-volt circuit bre

ak

er 

a

nd 

a

 

rel

a

y bo

a

rd 

w

ith 

a

 co

m

pressor loc

k

out circuit, 

a

 ter

m

in

a

l strip 

f

or ther

m

ost

a

w

irin

g

, plus 

a

a

ddition

a

l set o

f

 pin connectors 

to si

m

pli

f

y the inter

fa

ce o

f

 

a

ddition

a

f

ield controls. 

A

ll units 

h

a

ve lon

g

 l

a

stin

g

 po

w

der p

a

int c

a

binets 

w

ith 1000 hour s

a

lt 

spr

a

y test 

a

pprov

a

l under 

AS

TMB11

7

 procedures. 

A

ll 

m

odels 

a

re C

SA

 listed. 

A

ll 

m

odels include 

a

 1-ye

a

r li

m

ited 

wa

rr

a

nty 

on the co

m

plete unit. Co

m

pressors 

a

nd electric he

a

ter ele-

m

ents c

a

rry 

a

 5-ye

a

wa

rr

a

nty. 

A

lu

m

ini

z

ed steel 

a

nd 

S

t

a

inless 

steel tubul

a

r he

a

t exch

a

n

g

ers c

a

rry 

a

 10-ye

a

wa

rr

a

nty.

DESCRIPTION

Units sh

a

ll be 

fa

ctory-

a

sse

m

bled, sin

g

le p

a

c

kag

ed, Electric 

Coolin

g

/G

a

s He

a

t,  Electric Coolin

g

/Option

a

l Electric He

a

a

nd desi

g

ned 

f

or outdoor 

m

ounted inst

a

ll

a

tion.

The 3 thru 5  ton units sh

a

ll h

a

ve 

m

ini

m

u

m

 

S

EER r

a

tin

g

s o

f

 

10.0 

a

nd the 

6

 ton units sh

a

ll h

a

ve 

m

ini

m

u

m

 EER r

a

tin

g

s o

f

 

9.0. They sh

a

ll h

a

ve built-in 

f

ield convertible duct connections 

f

or do

w

n disch

a

r

g

e supply/return or hori

z

ont

a

l disch

a

r

g

e sup-

ply/return, 

a

nd be 

a

v

a

il

a

ble 

w

ith 

fa

ctory inst

a

lled options or 

f

ield inst

a

lled 

a

ccessories. The units sh

a

ll be 

fa

ctory 

w

ired, 

piped, ch

a

r

g

ed 

w

ith R-

22

 re

f

ri

g

er

a

nt 

a

nd 

fa

ctory tested prior 

to ship

m

ent. 

A

ll unit 

w

irin

g

 sh

a

ll be both nu

m

bered 

a

nd color 

coded. 

A

ll units the coolin

g

 per

f

or

ma

nce sh

a

ll be r

a

ted in 

a

ccord

a

nce 

w

ith DOE 

a

nd 

A

RI test procedures. Units sh

a

ll be 

C

SA

 listed, cl

a

ssi

f

ied to 

A

N

S

I Z

2

1.4

7

, UL 1995/C

SA

 No. 

2

3

6

 

st

a

nd

a

rds.

UNIT CABINET

Unit c

a

binet sh

a

ll be constructed o

f

 G90 

ga

lv

a

ni

z

ed steel, 

w

ith exterior sur

fa

ces co

a

ted 

w

ith 

a

 non-ch

a

l

k

in

g

, po

w

dered 

p

a

int 

f

inish, certi

f

ied 

a

t 1000 hours s

a

lt spr

a

y test per 

AS

TMB11

7

 st

a

nd

a

rds. Indoor blo

w

er section sh

a

ll be insu-

l

a

ted 

w

ith 

a

 

m

ini

m

u

m

 1/

2”

 thic

k

 insul

a

tion, co

a

ted on the 

a

ir-

side. 

A

lu

m

inu

m

 

f

oil 

fa

ced insul

a

tion sh

a

ll be used in the 

f

urn

a

ce co

m

p

a

rt

m

ent 

a

nd be 

fa

stened 

w

ith rid

g

ed 

fa

steners 

to prevent insul

a

tion 

f

ro

m

 enterin

g

 the 

a

ir stre

am

. C

a

binet 

p

a

nels sh

a

ll be 

l

a

r

g

e

 si

z

e, e

a

sily re

m

ov

a

ble 

f

or servicin

g

 

a

nd 

ma

inten

a

nce. Full peri

m

eter b

a

se r

a

ils sh

a

ll be provided 

to 

a

ssure reli

a

ble tr

a

nsit o

f

 e

q

uip

m

ent, overhe

a

d ri

gg

in

g

 

a

nd 

proper se

a

lin

g

 on roo

f

 curb 

a

pplic

a

tions. Dispos

a

ble 1" 

f

ilters 

sh

a

ll be 

f

urnished 

a

nd be 

a

ccessible throu

g

a

 re

m

ov

a

ble 

a

ccess door, se

a

led 

a

irti

g

ht. Units 

f

ilter tr

a

c

k

 sh

a

ll be 

desi

g

ned to 

a

cco

mm

od

a

te either 1

 or 

2”

 

f

ilters. F

a

n per

f

or-

ma

nce 

m

e

a

surin

g

 ports sh

a

ll be provided on the outside o

f

 

the c

a

binet to 

a

llo

w

 

a

ccur

a

te 

a

ir 

m

e

a

sure

m

ents o

f

 ev

a

por

a

tor 

fa

n per

f

or

ma

nce 

w

ithout re

m

ovin

g

 p

a

nels or cre

a

tin

g

 

a

ir by-

p

a

ss o

f

 the coils. Condens

a

te p

a

n sh

a

ll be intern

a

lly sloped 

a

nd con

f

or

m

 to 

AS

HR

A

62

-89 sel

f

-dr

a

inin

g

 st

a

nd

a

rds. Con-

dens

a

te connection sh

a

ll be 

a

 

m

ini

m

u

m

 o

f

 3/4

 I.D. 

f

e

ma

le 

a

nd be 

a

 rid

g

ed 

m

ount connection.

INDOOR (EVAPORATOR) FAN ASSEMBLY

The indoor 

fa

n sh

a

ll be direct drive, 

m

ulti-speed, or 

a

 

fa

ctory 

inst

a

lled belt drive 

a

sse

m

bly th

a

t includes 

a

a

djust

a

ble pitch 

m

otor pulley. 

J

ob site selected (B.H.P.) br

ak

e horsepo

w

er sh

a

ll 

not exceed the 

m

otors n

am

epl

a

te horsepo

w

er r

a

tin

g

, plus the 

service 

fa

ctor. Units sh

a

ll be desi

g

ned not to oper

a

te 

a

bove 

service 

fa

ctor. F

a

w

heel sh

a

ll be double-inlet type 

w

ith 

f

or-

wa

rd-curved bl

a

des, dyn

am

ic

a

lly b

a

l

a

nced to oper

a

te 

s

m

oothly throu

g

hout the entire r

a

n

g

e o

f

 oper

a

tion. 

A

ir

f

lo

w

 

desi

g

n sh

a

ll be const

a

nt 

a

ir volu

m

e. Be

a

rin

g

s sh

a

ll be se

a

led 

a

nd per

ma

nently lubric

a

ted 

f

or lon

g

er li

f

a

nd no 

ma

inten

a

nce.

OUTDOOR (CONDENSER) FAN ASSEMBLY

The outdoor 

fa

n sh

a

ll be o

f

 the direct-driven propeller type, 

disch

a

r

g

a

ir vertic

a

lly, h

a

ve 

a

lu

m

inu

m

 bl

a

des riveted to 

a

 

corrosion resist

a

nt steel spider br

a

c

k

et 

a

nd sh

a

ll be dyn

am

i-

c

a

lly b

a

l

a

nced 

f

or s

m

ooth oper

a

tion. The outdoor 

fa

m

otor 

sh

a

ll be tot

a

lly enclosed 

w

ith per

ma

nently lubric

a

ted be

a

r-

in

g

s, intern

a

lly protected 

aga

inst overlo

a

d conditions 

a

nd 

st

ag

ed independently.

REFRIGERANT COMPONENTS

Co

m

pressor:

a

.

S

h

a

ll be  intern

a

lly protected 

w

ith intern

a

l hi

g

h-pres-

sure relie

f

 

a

nd over te

m

per

a

ture protection.

b.

S

h

a

ll h

a

ve intern

a

l sprin

g

 isol

a

tion 

a

nd sound 

m

u

f

-

f

lin

g

 to 

m

ini

m

i

z

e vibr

a

tion 

a

nd noise, 

a

nd be exter-

n

a

lly isol

a

ted on 

a

 dedic

a

ted, independent 

m

ountin

g

.

Coils:

a

.

Ev

a

por

a

tor 

a

nd condenser coils sh

a

ll h

a

ve 

a

lu

m

i-

nu

m

 pl

a

te 

f

ins 

m

ech

a

nic

a

lly bonded to se

am

less 

Summary of Contents for SUNLINE 2000 DM 048

Page 1: ...roof jack or frame All units include Powder Paint finish that meets ASTM B 117 1000 hour salt spray standards Permanently lubricated motors Bottom or side air discharge configuration capability field...

Page 2: ...MANCE 4 TON BELT DRIVE SIDE DUCT APPLICATION 21 11 SUPPLY AIR BLOWER PERFORMANCE 5 TON BELT DRIVE SIDE DUCT APPLICATION 22 12 SUPPLY AIR BLOWER PERFORMANCE 6 TON BELT DRIVE SIDE DUCT APPLICATION 23 13...

Page 3: ...RQV 2SWLRQV 2SWLRQV 2SWLRQV 2SWLRQV 2SWLRQV LVFRQQHFW 1RQ 3ZU G RQY 2XOWHW 6PRNH HWHFWRU 6 6PRNH HWHFWRU 5 3ZU G RQY 2XWOHW GGLWLRQDO 2SWLRQV 6HH 1H W 3DJH 3URGXFW HQHUDWLRQ LUVW HQHUDWLRQ 9ROWDJH 1RP...

Page 4: ...ase Monitor CQ CPC Controller DFS APS Technicoat Evap Cond Coils Coil Guard CR CPC Controller DFS APS Technicoat Evap Cond Coils Phase Monitor Coil Guard CS CPC Controller DFS APS SS Drain Pan CT CPC...

Page 5: ...Controller DFS APS SS Drain Pan Phase Monitor Coil Guard HU Honeywell Excel 10 Controller DFS APS SS Drain Pan Technicoat Cond Coils HV Honeywell Excel 10 Controller DFS APS SS Drain Pan Technicoat Ev...

Page 6: ...Intelli Comfort Controller LB Simplicity Intelli Comfort Controller Phase Monitor LC Simplicity Intelli Comfort Controller Coil Guard LD Simplicity Intelli Comfort Controller Phase Monitor Coil Guard...

Page 7: ...S Drain Pan Dirty Filter Switch Hinged Filter Door Toolless Access Panels BN SS Drain Pan Phase Monitor Coil Guard Dirty Filter Switch Hinged Filter Door Toolless Access Panels BS Bottom Drain Connect...

Page 8: ...Toolless Access Panels GA Honeywell Excel 10 Controller with Dirty Filter Switch Air Proving Switch Hinged Filter Door Toolless Access Panels GB Honeywell Excel 10 Controller DFS APS Phase Monitor Hi...

Page 9: ...Technicoat Evaporator Coil Phase Monitor Hinged Filter Door Toolless Access Panels UL Technicoat Evaporator Coil Coil Guard Hinged Filter Door Toolless Access Panels UM Technicoat Evaporator Coil Dir...

Page 10: ...Mod Link Controller Coil Guard Hinged Filter Door Toolless Access Panels XD Intelli Comfort w Mod Link Controller Phase Monitor Coil Guard Hinged Filter Door Toolless Access Panels XE Intelli Comfort...

Page 11: ...trol board monitors the high and low pressure switches the freezestats the gas valve if applicable and the temperature limit switch on gas heat units The unit control board will alarm on ignition fail...

Page 12: ...processes Coating is applied by total immersion of the complete coil for maximum protection ELECTRIC HEATERS Wired for single point power supply These nickel chromium heater elements are pro vided wi...

Page 13: ...dirty filter indicator switch and air proving switch SMOKE DETECTORS supply air return air The smoke detectors stop operation of the unit by interrupting power to the control board if smoke is detect...

Page 14: ...surized during econo mizer operation The power exhaust option can only be used on bot tom duct configurations BAROMETRIC RELIEF DAMPER This damper acces sory can be used to relieve internal building a...

Page 15: ...and 95 F outdoor MODEL MBH EER2 2 EER Energy Efficiency Ratio at full load the cooling capacity in Btu s per hour Btuh divided by the power input in watts expressed in Btuh per watt Btuh watt SEER3 3...

Page 16: ...34 33 29 25 21 17 13 62 33 3 7 33 33 33 29 25 21 17 31 4 0 31 31 31 27 23 19 15 57 34 3 6 34 34 34 30 26 22 18 32 4 0 32 32 32 28 24 20 16 72 39 3 7 27 24 20 17 14 37 4 1 26 23 20 16 13 67 36 3 6 34...

Page 17: ...45 42 37 32 27 22 17 62 43 4 9 43 43 43 38 33 28 23 40 5 4 40 40 40 35 30 26 21 57 43 4 9 43 43 43 38 33 28 23 40 5 4 40 40 40 35 30 25 20 72 53 5 0 36 32 28 23 19 51 5 5 35 31 26 22 17 67 46 4 9 44 4...

Page 18: ...50 47 42 36 30 24 18 62 48 5 8 48 48 48 42 37 31 25 44 6 4 44 44 44 38 32 26 20 57 46 5 8 46 46 46 40 35 29 23 42 6 4 42 42 42 36 31 25 19 72 60 6 0 42 37 32 26 21 57 6 6 41 36 30 25 20 67 54 5 8 52 4...

Page 19: ...66 61 54 47 40 32 25 62 64 7 0 64 64 64 56 49 42 35 58 7 8 58 58 58 51 43 36 29 57 64 7 0 64 64 64 56 49 42 34 58 7 7 58 58 58 50 43 36 29 72 75 7 1 56 49 43 36 29 76 8 0 55 48 41 34 27 67 70 7 1 68 6...

Page 20: ...890 580 RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS 1700 1600 1500 1400 1055 875 1300 1036 780 1066 850 1200 1011 735 1047 765 1075 800 1100 987 690 1028 720 1060 750 1084 77...

Page 21: ...M WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS 2000 1103 1270 1900 1085 1210 1800 1064 1145 1102 1180 1700 1040 1075 1081 1115 1121 1140 1600 1020 1005 1060 1050 1100 1085 1500 10...

Page 22: ...965 830 RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS 2500 2400 1193 1665 2300 1170 1580 1202 1620 2200 1148 1480 1180 1530 2100 1121 1385 1155 1425 1190 1475 2000 1100 1285 11...

Page 23: ...RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS 3200 3000 2800 1245 2190 2600 1193 1920 1222 1990 1250 2060 2400 1142 1675 1173 1730 1205 1800 1234 1885 2200 1090 1380 1124 1450 1155 1550...

Page 24: ...1724 800 1644 770 1531 710 6 1 HI 2101 1260 2000 1205 1914 1155 1830 1110 5 1 0 60 0 20 0 30 0 40 0 50 UNIT TONNAGE MOTOR SPEED UNIT TONNAGE MOTOR SPEED 3 1 4 1 5 1 AVAILABLE EXTERNAL STATIC PRESSURE...

Page 25: ...00 return air If the resistance of the return air duct system is less than 0 25 IWG the unit will deliver less CFM during full economizer operation 2 Add these resistance values to the available stati...

Page 26: ...0706 7 5 31 3 45 3 60 2CE04511006 10 6 44 2 61 5 70 2CE04511506 15 9 66 3 89 1 90 2CE04512006 21 2 88 3 116 7 125 NONE 0 0 0 0 23 9 35 2CE04510525 2 4 0 11 1 23 9 35 2CE045107252 5 6 15 5 25 7 35 2CE0...

Page 27: ...40 NONE 0 0 0 0 31 7 50 2CE045105252 4 0 11 1 31 7 50 2CE04510725 2 5 6 15 5 31 7 50 2CE04511025 8 0 22 2 36 3 50 2CE04511525 11 9 33 0 49 8 50 2CE04512025 15 9 44 1 63 7 70 2CE04513025 22 2 61 6 85...

Page 28: ...0706 7 5 31 3 48 6 60 2CE04511006 10 6 44 2 64 7 70 2CE04511506 15 9 66 3 92 3 100 2CE04512006 21 2 88 3 119 9 125 NONE 0 0 0 0 24 1 35 2CE04510525 2 4 0 11 1 24 1 35 2CE045107252 5 6 15 5 25 9 35 2CE...

Page 29: ...40 NONE 0 0 0 0 29 9 45 2CE04510525 2 4 0 11 1 29 9 45 2CE04510725 2 5 6 15 5 29 9 45 2CE04511025 8 0 22 2 34 0 45 2CE04511525 11 9 33 0 47 5 50 2CE04512025 15 9 44 1 61 4 70 2CE04513025 22 2 61 6 83...

Page 30: ...5 31 3 57 8 70 2CE04511006 10 6 44 2 74 0 80 2CE04511506 15 9 66 3 101 6 110 2CE04512006 21 2 88 3 129 2 150 NONE 0 0 0 0 33 9 45 2CE04510525 2 4 0 11 1 33 9 45 2CE045107252 5 6 15 5 38 2 45 2CE04511...

Page 31: ...NONE 0 0 0 0 41 7 60 2CE045105252 4 0 11 1 41 7 60 2CE04510725 2 5 6 15 5 41 7 60 2CE04511025 8 0 22 2 48 8 60 2CE04511525 11 9 33 0 62 3 70 2CE04512025 15 9 44 1 76 2 80 2CE04513025 22 2 61 6 98 0 1...

Page 32: ...7 5 31 3 61 1 70 2CE04511006 10 6 44 2 77 2 80 2CE04511506 15 9 66 3 104 8 110 2CE04512006 21 2 88 3 132 4 150 NONE 0 0 0 0 34 1 45 2CE04510525 2 4 0 11 1 34 1 45 2CE045107252 5 6 15 5 38 4 45 2CE045...

Page 33: ...5 NONE 0 0 0 0 39 9 50 2CE045105252 4 0 11 1 39 9 50 2CE04510725 2 5 6 15 5 39 9 50 2CE04511025 8 0 22 2 46 5 50 2CE04511525 11 9 33 0 60 0 70 2CE04512025 15 9 44 1 73 9 80 2CE04513025 22 2 61 6 95 8...

Page 34: ...0 CONDENSER COILS Rows Deep 1 1 1 2 Fins Per Inch 16 16 22 16 Face Area Sq Ft 17 1 17 1 17 1 16 7 COMPRESSOR Qty Per Unit Scroll Type 1 1 1 1 AIR FILTERS Quantity Per Unit 15 X 20 X 1 or 2 2 2 2 2 Qua...

Page 35: ...LED 1 LED 2 COM A1 A2 T T B R Y1 Y2 G C X OCC W2 W1 THERMOSTAT1 TERMINALS UNIT TERMINAL STRIP TB1 24 VOLT TRANSFORMER TO REMOTE SENSOR 2TH040702224 IF USED NOT USED ADD JUMPER ADD JUMPER 4 4 3 2 1 EL...

Page 36: ...036 21502 003 A 1105 36 Unitary Products Group FIGURE 3 UNIT DIMENSIONS 3 6 TON COOLING ONLY ELECTRIC HEAT FRONT VIEW FIGURE 4 UNIT DIMENSIONS 3 6 TON COOLING GAS HEAT FRONT VIEW...

Page 37: ...036 21502 003 A 1105 Unitary Products Group 37 FIGURE 5 UNIT WITH ECONOMIZER RAINHOOD DETAIL A FIGURE 6 UNIT WITH FIXED OUTDOOR AIR MOTORIZED DAMPER RAINHOOD DETAIL B...

Page 38: ...TRY See Detail B MOUNTING BRACKET FOR DICONNECT SWITCH Shipped attached to the blower housing inside the blower compartment FIELD SUPPLIED DISCONNECT SWITCH LOCATION BLOWER MOTOR ACCESS FILTER ACCESS...

Page 39: ...036 21502 003 A 1105 Unitary Products Group 39 FIGURE 9 TYPICAL APPLICATIONS...

Page 40: ...6N08 625 139 136 173 177 93 92 91 115 117 118 DM036D10 635 141 138 176 179 94 93 92 117 119 120 DM048 Cooling Electric 615 137 134 171 174 91 90 89 113 115 116 DM048 D N 06 665 148 145 184 188 99 98 9...

Page 41: ...oling Only 565 615 640 720 DM Gas Electric N04 605 N06 665 N08 625 700 780 N10 685 710 790 D06 615 665 690 770 D10 635 685 710 790 OPTIONS Economizer 50 Motorized Damper 26 Electric Heater 5 7 kW 18 1...

Page 42: ...factory tested prior to shipment All unit wiring shall be both numbered and color coded All units the cooling performance shall be rated in accordance with DOE and ARI test procedures Units shall be C...

Page 43: ...k ignition and redun dant main gas valve Venter wheel shall be constructed of stainless steel for corrosion resistance The heat exchanger shall be of the tubular type constructed of T1 40 aluminized s...

Page 44: ...eration Whenever the indoor fan motor is energized the dampers open up to one of two pre selected positions regardless of the outdoor air enthalpy Dampers return to the fully closed position when the...

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