York D1SV300 User manual

YORK. SUNLINE SERIES
SINGLE PACKAGE AIR CONDITIONERS
INSTALLATION INSTRUCTION Supersedes 530 25-N2Y (488) Tab DSV 530 25-N2Y (1189)
-035-08597
MODELS DISV/D2SV300, 360 &480
I
.. .- -J-
‘1 “r--7---- ---
11,
]
1. -1 i~~ 1
-
GENERAL

530 25-N2
TABLE OF CONTENTS
GI:NERAL 1
INSPECTION I
REF1REN(’I 1
NOMIN(’LAT(IRL INSTALLATION 2
L[ MIT ATIOXS 3
RI(;GINC; 3
kloliNTING .3
(’L1;ARAN(’tS.3
coNDLNsATI.DRAlk”CONN1(TION 4
POWLR AND (’ONTKOLW[RING
Powc[ Wll Ing 4
(’ontfol Wiring .,, .,, 6
r)~l(”_f COP4SL(’ rloNS 11
f-lLT1KS 11
1(’ONO\llZf RRAIN’H6fi)~’bPTiOiV’:: ::: 12
FIXEDOUTDOOR AIRRAINHOOD : 12
IXliAUST AIR RAIN HOODOPTION ., ]~
STATICPRESSUREREGULATOR AND CONT”ROL: 12
OPERATION
DISV VARIABLEAIR VOLUME ., 12
GENERAL . . . . 12
COOLING ., .’: : : : : 13
Economizer System, ., . . 14
Damper LinkageAdjustment, ., ., 14
Hwrtmg Systcm 14
Au Volume Control System 14
Check]ngLlnk~geon Alr Volume D~m”pers 15
Checkout Procedure 15
Exhaust Alr System 15
SUPPLYAlRBLOWERADJUSTM1+T : : 16
MASTLRPRINTLDCIRCLIITBOARDAND
PLUC;-INRELAY ASSEMBLY 18
SE.f<VICE.ANALYZt R18
FIXEDOUTDOORAIR ADJUSTMENT :19
t:XllAUST AIR PI RFORMAN(’L 19
START-UP
PRE START-UPCHECKS -)’-!
. .
pre-stsrt Steps and procedures 7-J
--
INITIALSTART-UPCHECKS 23
SAFETYAND SERVICE FEATUkES .23
MAINTENANCE
FILTERS ., . . . ... , . . . . . . . . ... . 24
COILS ..................... ., 24
DRAINPAN .24
LUBRICATION. . . . . . . . . . . . . . . . . . . . . . . . 24
BELTS . . . . . . 24
REFRIGERANT CtlARGE R-22 24
FIGURE
I
>
<
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
][]
TABLE
1
7
3
4
5
6
7
8
9
10
11
LIST OF ILLUSTRATIONS
Un It Le;$ P;incls ~
r~pIcdlUn] tRlgg(ng 3
(’enter (JI Gr~v]ly 3
lk~omn]cndcd Drain P]prrrg 4
Bottom Power Wrrlngl.ntran~e 5
Side PuwerWlrlnglmtrancc 5
Control Wumg Entrance (DSV300,”360) ~:6
Control WlrmgEntrance (DSV480) 6
Control Wrrmgand Static Pressure Con-
nect inns, D1SV Un]t With A]r Volume
Dampers 7
Un]t l)lnlcrr~lons . . . . 10
Duct Conncctlons . . . . 11
Sound Ahsorptlon Chamber .11
Internsl V[ewof DamperMotor EndSwltcb :1s
AdjustingDamper Motor End Switch 15
Typical Motor Mountlrrg Assembly 16
IIole Locations For Supply Alr (’FM(’beck 17
PressureDrop Acruss IIvapordtor (’oil 17
I;rxcd Outdoor Alr AdJir\tnlcnt 19
l;xhaus[ ArrPert orlmince 19
LIST OF TABLES
Appllcti[lon lli[a 4
Cunlponcnl Wcight~ 4
Llcctrlcdl Dtita .8
I-rltcr Kcqulrcrnentj 11
Ambient Thernmstat %ttlng 14
En[halpy (’ontroi (%[ Ilrlnt “B’ . . 14
Supply ArrSystem Adjustment 16
ScrvrceAnaly/cr Function Chart 18
BlowerMotor And Drlvc Da[ir 20
Rc\rsttsr]cc\-Untt Options ~nd Atxc\sorm~ 20
Supply Alr BlowerPcrlormancc 21
PRODUCT IDENTIFIER -
SV =VAV Sunllne
I
ink-l
J
COOLING
CAPACITY
300 =25 Tori
360 =30 Ton
480 =40 Ton
FACTORY INSTALLED HEAT
E=Electric
G=Gas (Multl-Fuel)
A=Not Applicable
I
I,=
‘aEa
NOMINAL HEATING CAPACITY
Gas Electric
400 =400 Mbh 040 =40 KW
560 =560 Mbh 060 =60 KW
800 =800 Mbh 080 =80 KW
100 =100 KW
120 =120 KW
-
-
-
2con troll EIIVIronmf,llt,i ISyslf,ms

SUPPLY AIR EVAPORATOR COIL
BLOWER \
530 25-N2
-F ILTERS
\RETURN AIR
COMPARTMENT
FIG. 1 – UNIT LESS PANELS (DSV 480 SHOWN)
INSTALLATION
LIMITATIONS
These units must be installed inaccordance with all natiunll
and local safety codes. If no local codesapply, installatlon
must conform with the appropriate nationa] codes, SeeTable
Ifor application data. Unitsare designedto meet National
Safety Code Standards. If’components must be added to a
unit to meet local codes, they are to be installed at the deal-
er’sand/or the customer’sexpense.
uRIGGING
Sunllne units are equipped w]th lifting lugson the unit base.
Units should be lifted by placingrigg]nghooks thru the ILIgs
provided. Spreader bars should be used, See Fig. 2.
CLEARANCES
These units must be ins(alledwith the mmimum clearances
hsted below,
Front 36” for Service Access
(Control Box Side) to Controls
Left side
(Condenser coIl) 36” for Proper Condenser Air Flow
Rear 36” From Rain Hoods
Right side 36” Units w!th Electrlc Heat Opt Ion
36” CoollngOnly Units
Below unit’ o“
Above unit 120” for Condenser Air Discharge
‘Units wnh an electrlc heatingoption can be Installed on acombus-
tible floor.
A2“ clearance within 3feet of the unit must be nlalntiuned
between any combustible mater]al and the supply air duct
work.
Noobjects should be left near the combustion air inlet to
obstruct the openings. If the unit ISslab mounted, shrubs
and other growth should be eliminated.
FIG. 2 – TYPICAL UNIT RIGGING CONDENSER COIL END
MOUNTING
The structure on which the unit or roof curb ISmounted
must be capable of supporting the total weight of the unit.
Refer to Table 2for individual component weights. Refer
to Figure3for approximate centers of gravity.
Aroof mounting curb accessory 1savailableto simplifythe
installation of aSunline unit. Refer to Form 530.25-N1.6
Lfor installation instructions for assemblingand mounting
the curb and for installingthe unit on the curb. Roof mount-
ingcurbs capable of supporting the unit’s weight may also be
field fabricated.
DSV300 141 47 77
.-——
DSV360 164 48 84
DSV480 184-- 45 104
FIG. 3 – CENTER OF GRAVITY
Central Enwronmental Systems 3

53025 N2
TABLE 1–APPLICATION DATA
MODEL DISVID2SV I300 I 360 I480
b200volts
VoltaqcValIatlon, MIn/Max1230 Volts
460 Volts -1
180/220
2i7!253
414/506
~...— L—. ——–.-—- .—. —— —
I575 volts
---t ‘-- ‘-- ‘ ---
520/635
Supply Alr CFM, Mlnz/Max –3,000/12000 ‘&600/14,400 [
Wet BLIIbTemp (F) of Air on Evapolator CoIl, Mlrr/Max .... 57/72
DIv‘BulbTemD.(‘F; of Alr on CondenselCo,l. Mln/Max .“35~i 15
4,800/19<200
180
1Ur II/at 1[]11R,II>[II>
“A II ,ICCor d,I IICV LVI fhAR IStandard 110
2Hot gas bypass WI IIbe req L.Ired Ifthe CFM drops below the mln Imum values shown
TABLE 2 – COMPONENTWEIGHTS (L8S. )
MODEL DSV
300 1360 480
BASIC UNIT* 3135 3675 4480
Options
Economizer 220 220 247
SUPPIY Air Motor &Drive
7-1/2 HP 130 — —
10 HP 145 145 .
15 HP —185 185
20 HP — — 215
Heatincl
Nat;ral Gas Heat
G400 140 140 —
G560 240 240 240
G800 — — 340
Electric Heat
E040 50 50 50
E060 55 55 55
E080 60 60 60
E1OO 65 65 65
El 20 —70 70
Exhaust Fan 160 160 250
Discharge Dampers &
Actuator (DSV units only) 125 125 150
Accessories
Roof Mounting Curb 300 1350 400
End Outlet Kit 105 105 I130
“WIth fl xed outdoor alr opt, on
CONDENSATE DRAIN CONNECTION
1Ilc (I.Ip lllu\l lx? J( It<l.l 2“ (ice})I!1111.1111(1In ,! N,11L’1 W’<iI
lln(i~l J1! I)1x’1J[111~L{llldl [ II) II} L’\[K’L la] I\ \\ t1(>II [IIC t) II I\\ c>I j
JIc\l .1ItIny LIp
UNIT CONDENSATE
‘-b
DRAIN CONNECT ION’\
~.. –.
*
2“
/
l)RAl N
PLLJ[-, TRAP
FIG. 4 – RECOMMENDED DRAIN PIPING
POWER AND CONTROL WIRING
POWERWIRING
Ic’II It II cIIlc \ll )[IL’dJplIll: pill i{ IIILI1AL’(’Ih IIlc IIIuIIIIII) f(l-
1,11 Illfl r\l I II {IIL! p( l\\ cIl\l: [10 (Iq!l t’c> LII )L L\i I’1(’ ,111dIc pb L1.’
11(1[II III[i ,1()1IL,(I\))l Ing pill ,Ind [IIL’ I4“ I)( ) II
A

Anon-fused disconnect switch is availableas afactory-
mounted option on all units. Whenthis option is not in-
cluded, afield-supplieddisconnect switch should be install-
ed in the power supply wiiing at alocation that willmeet
the requirements of the National Electric Code and/or local
bregulations.
,}’OTI [-((,wddi~cIJrItIc’(rsit$it[lw~urcnot req((vwf becut(se
tll~po~tw w’ir[t)gttrustbcjiised at the source.
Eltber Inverse[[meclrcult breaker or LIWIIelement time de-
krytuses may be used for overcurrerrtprotect l[~non these
units They must be swedaccording to Table 3.
Bottomentry ISrecommended tor:
1, Curb mounted units with afactory installed disconnect
sw]tcbunlessthe power wiringis already above the fin-
]shedroot,
L
CONOU IT
CONNECTOR
(3” Threaded) 1
w
CONDUIT TERM INATION 4.1 /2” DIA SLEEVE
PLATE (35/8” K.O )
UNITS WITHOUT DISCONNECT
FIG. 5 – BOTTOM POWERWIRING ENTRANCE
530.25-N2
~njts that are Illounted on structural steel above the
finishedroof unlessthe steel is blocking the 4-112inch
diameter sleeve]n tImbase ot’tile unit. TbIs~ppliest(]
urrltswitbor WIIh(lut af~ctolJ’InstaIleddisconnect
Swltcb
CAL’TIOIV The 4-1/2 inch slme must be sealeda]ter
(h<’power }~’irmgIrasken rotited to ptwvnt
possible condensation problcrnsin the utlit
<ywtr()1box.
Sideentry is recommended f(l]:
1. Curb mounted units without afactory installed discon-
nect switch becausethe power wiringmust be brought
outside the unit to afield supplied disconnect sw]tch.
2. Slabmounted units with or without afactory installed
disconnect sw]tch, ..
CONDUIT
CONNECTOR
(3” Threaded) \
J
\
CONDUIT TERMfNATION 4.1 /2” DIA SLEEVE
PLATE (3-5/8” K.O.)
UNITS WITH DISCONNECT
3-5/8” K O \
/
CONDUIT
(BY FIELD)
CONDUIT
CONNECTOR
-(3” Threaded)
(BY YORK)
,CONDUIT
TERMINATION
1PLATE
/A. J](3-5/8” K.O )
,
STRAIGHT CONNECTOR
(BY FIELD)
MODELS DSV300, 360
FIG. 6 – SIDE POWERWIRING ENTRANCE
Central Environmental Sys[ems
,
I
I
CONDUIT
-CONNECTOR
(3” Threaded)
(BY YORK)
7
4-- \
—.——.-1 ,. <
/\-\: FLExlBLECONDUIT
\
OUTLET BOX
3-518 ’’’O.O (Die Cast) (Liquid Tight)
(BY FIELDI (BY FIELD)
MODEL DSV480
5

530,25-N2
CONTROL WIRING (MODELS DSV300, 360)
For bottom entry (Figure 7), the control wlrurgshould be
routed:
1. Up through the flexible conduit and the middle deck to
the proximity of the hole into the control box.
2. Throughthe 1-3/8snap bushingmthe condenser evap-
orator partition and control box.
3. Through the 2ty-wrapspositioned in the control box.
4. Connect the wiresto the terminal block per Fig. 9.
For side entry on slab mounted units, the control wiring
should be routed:
1.
2.
3.
4.
Through the 1-1/8 mch K.O. in the corner post.
Through the 1-3/8 snap bushingin the condenser evap-
orator partition and control box.
Through the 2(y-wrapspositioned in the control box.
Connect the wiresto the terminal block per Fig. 9.
CAUTION: Wiringpenetration through the side entr.v)
must be sealedto prevent the entrance of
water,
EXISTING
TY-WRAPS
1-1/8” K O
/b-’
TERMINAL BLOCK
FOR STATIC PR ES- FLEXIBLE
SURE CONTROL CONDUCT
CONNECTIONS (BY YORK)
RSIDE ENTRANCE
CONTROL WIRING (MODEL DSV480)
For bottom entry (Figure 8), the control wiringshould be
routed
1. Up through the 2-1/4 mch O,D. tubing behind the con-
trol box.
2. Through the posltmncd ty-wrapon the outside of the
control box.
3. Through the I-3/8 snap bushingin the control box.
4. Through the 2ty-wrapspos]t]onedmthe control box
5, Connect the wlrirrgto the terminal block per Fig. 9.
For side entry on slab mounted units, the control wiring
should be routed.
1. Through the 1-1/8 inch K.O.Inthe mtermedlate post.
2. Through the 1-3/8 snap bushingin the control box.
3. Through the 2ty-wraps pmtioned in the control box.
4. Connect the wiringto the termmal block per Fig. 9.
CAUTION. Wiringpenetration through the side entry
must be sealedto prevent the entrance of
water.
EXISTING
1-3/8” SNAP BUSHING TY-WRAPS 1-3/8” SNAP BUSHING
(BY YORK)
II!/
2-1 /4” OD
TUBING
‘TRY \IBY YORK)
t‘BOTTOM ENTRY
t
t
I\
TERMINAL BLOCK FOR 1.1/8” K O
STATIC PRESSURE FOR SIDE ENTRANCE
CONTROL CONNECTIONS
FIG. 7 – CONTROL WIRING ENTRANCE (DSV300, 360) FIG. 8 – CONTROL WIRING ENTRANCE (DSV480)
6Central Environmental Systems

530 25-N2
a
<
m.
m
I133A* -t
3@o
a
0
a
in
FIG. 9 – cONTROL WIRING AND sTATlc pREssu RE connections (UNIT WITH AIR VOLUME DAMPERS)
Central Envltonmental Systems 7

530.25-N2
TABLE 3 – (A) ELECTRICAL DATA –UNITS WITHOUT EXHAUST AIR FANS’
—
300
360
480
~
)&w
w
..
—17
28
46
58
17
28
46
58
17
28
46
58
M
[1
10I0000 I225
10 705
-.
10I
44++
‘/2(6) 2.Oea. 105
110 125
/2 (6) 2.Oea. ~~ 100
110
‘/2 (6) 3.4ea. ~~~ 300
----
0000
208 25(1) 101 470 0.84 /. 1/.? L> 103
200 10 32 200 314(3) 4.2ea. 175 20
230 25(1) 92 470 0.76 71/2 22 150 17
230 10 28 230 3/4 (3) 4.2ea. 160 20U Uu Z.su
460 25(1) 46 235 0.76 460 7.1/2 11
10 14 460 3/4 (3) 2.4ea. 80 90 4 360
575 25(1) 37 200 0.76 575 7-1/2 9
10 11 4606 3/4 (3) 2.4ea. 65 80 6 365
208 30(1) 126 565 0.90 10 32 210 25
200 15 48 200 1/2(6) 3.4ea. 230 30
230 30(1) 122 565 0.81 10 28 205
230 15 42 230 1/2(6) 34 ea. 215 25I
460 30(1) 61 283 0.81 460 /: ;; 460 1 “ - ‘- -
575 30(1) 49 230 0,81 575 ~: ;; 460’ 1
208 20(2) 15 48
83ea. 428ea. 0.90ea. 208 F. 59 200 1
230 20(2) 80ea. 428ea. 0.81ea. 230 ;; ;: 230 1/2(6)13.4ea.I~~~ I30
460 20(2) 40ea. 214ea. 0.81ea. 15 21
460 20 27 460 1
575 20(2) 33ea. 160ea. 0.81ea. 575 ;; ;; 4606 1 1 1 ,,“ 11I.“”
4
3
250
300
1=
250
235
2400
385
405
450
205
220
~9n
“Cluantlty Ilsted In ( )
1Refer to the followlng table for electrical data of unit w!th exhaust a!rfans ~
4Based on three 75’C, Insulated copper conductors in steel condu!t
2Rated at a45”ET and a 130”CT Based on a 3?/. voltage drop
3Dual element, time delay type 6A575 to 460 VOIttransformer ISprcwded for these motors
TABLE 3 – (B) ELECTRICAL DATA –UNITS WITH EXHAUST Al RFANS]
360
480
$wq#ym%&W AR t% Wit Max. Min. IMax.
Metm{lwlas$l Amp8- Fw W@ Wim
1“ c~ty, Skt$? Size,3 Lewjth,’
Vf?tb H?{*) FLA Amps Asnp$ JWWMcrd I%@
f17 7-1/2 200 3/4(2) 4.2ea. 175 200 00 185
10 180 225 000 215
28 7-1/2 230 3/4(2) 4.2ea. 160 200 00 230
10 165 220
46 7-1/2
10 460 3/4(2) 2.4ea. 85 100 4 335
58 7-1/2
10 460s 3/4(2) 2.4ea. 70 80 4 510
17 10 200 3/4(2) 4.2ea. 220 250 0000 215
15 235 300 250 220
28 10 230 314(2) 4.2ea. 210 250 0000 245
15 225 300 225
46 10 460 3/4(2) 2.4ea. 110 125 2385
15 115 150 365
58 10 4605 3/4(2) 2.4ea. 90 110 3475
15 100 425
17 270 300
;; 200 3/4(3) 4.2ea. 300 220
280 350 210
28 15 230 314(3) 4.2ea. 255 300 250 220
20 270 300 230
46 15 460 3/4(3) 2.4ea. 135 150 0450
20 140 435
58 15 4605 3/4(3) 2.4ea. 115 125 2460
20 120 1 525
-
-
“Cluantlty Ilsted In (). ~Based on three 75 ‘C, lnsuIated copper conductors nsteel corIdIIIt
‘Refer to table above for electrical data on compressors and fan motors Based on a 3?4 voltage drop
2Dual element, time delay type 5A575 to 460 VOIttransformer ISprovided for these motors
8Central Environmental Systems

530.26-N2
TABLE 3 – (C) ELECTfI ICAL DATA –UNITS WITH ELISCTR IC HEAT1
-
L
17 208
28 230
46 460
17 206
28 230
46 460
300 17 208
28 230
46 460 —
17 208
28 230
46 460
17 208
28 230
46 460
17 280
E040 30 83
E040 40 96
E040 40 48
E(MO 45 125
E060 60 144
E060 60 72
E080 60 167
E080 80 192
E080 80 96
E100 75 208
E100 100 240
E1OG 100 120
E040 30 83
E040 40 96
E040 40 48
E060 45 126
E060 60 144
E060 60 72 .
—
E080 60 167
E080 80 192
E080 80 96
=00 75 208
El 00 100 240
E100 100 120
E120 120 144
E040 I40 I48
28 230
46 460
360 ,7 208
28 230
46 460
17 – 208
28 230
ii 460
46 460 -
17 208
28 230
46 460
17 208
28 230
76 460
480 ?7 208 E080 60 167
28 230 E060 80 192
46 460 E060 60 96
17 208 E100 75 208
28 230 E1OO 100 240 35 300 350 370 310
10 350 355 325
46 460 E100 100 120 50 150 450 160
55 175 $ 540 165
46 460 El 20 120 144 75 175 48: 180
90 200 0% 190
200
225
200
100
200
225
200
100
225
250
—
125
250
yx&
300
150
z
300
250
300
125
150
250
~
$&
125
150
250
m
250
300
125
150
——
300
——
300
350
150
175
175
200
300
300
150
300
300
150
300
300
160
300
350
350
175
200
$
3430
—& %
285
275
460
:340 275
0000 26(J
0000 280
250 325
,I440
250 280
300 325
30 335
35: 330 —
o480
460
0000 260
250 295
0000 34:
.2380 —
360
Oooo 260
260 285
0000 310
285
2380
360
0000 260
250 290
250 325
305
$
—
1-440
400
——. 325
3003W
350 375
360
460
0: 540
.00 510
490
300 315
300
250 305
300 350
0530
480
z
300 315-
300
250 305
300 350
0490-
480
—— 315
3003m
300 365
340
0480
480
300 295
350 325
*
350 355
400 385
00 530
510
000 580
550
uDSV un,tswtthelectr,c heat ~Refer to the prewous pagefor electrical data on compressorsand fan motors
Dual element, lam: delav fusesare requ,red to handle the $nrushcurrent dur,ngcompressor stari UP
~Basedon thvee 75 C, ,nsulaled copper conducmrs 10sleel condu)t
Central Environmentel Systems Basedon a3% voltage drop 9

530.25-N2
Ml NIMUM CLEARANCES
FRONT
Control Box Sfde 36”
REAR 36”
LEFT SIDE
Condenser COII 36”
RIGHT SIDE
Coollng Only Umts 36”
Electric Heat Units 36”
Gas Heat Units 90”
BOTTOM .o“
TOP : : : : 120”
r
All dimensions are In Inches. They
are subject to change without notice.
Cert!fied dimensions WIII be provided
p’
60 1/8
~LI
[
13.3/4.
DIM. MODEL DSV
300 360 480
A141 164 184
B17 32 32
c107 100 120
D100 100 120
E4-5/8 4-5]8 —
F5 5 –
G— — 5-51B
H——11-1/4
J19 42 –
K32-112 55-1/2 –
L——65
M——73
N34-318 57-3{8 77-112
L
II----
IHOLE
CONDENSER
COIL NT:
8
40 TON
UNIT SHOWN \
FRONT
1NOTE The unit base IS shown Y
by itself to illustrate the %
bottom supply and return alr GAS HEAT ‘
(See Detal IP
,opemngs more clearly
/
‘‘(
68
@
23112
1
\
,&ErulNG USED ON USED FOR ‘\
&TYPE Dsv ‘.,
—.——
AA 4-1/2 Dia. Sleeve 300, 360,480 Gas Heat Piping
B8 2-1/4 Dia. Sleeve 480 Control Wiring
cc 4-1/2 Dia. Sleeve 480 Power Wtrlng
.- -4 ‘” Dia. Sleeve 300,360 Control Wiring
\/
92
1Heating Option G560 &G800.
}See Form 530 25-N1 1
~Heating OptIon G400
FIG. 10 – UNIT DIMENSIONS
10 Central Environmental Systems
-
-

530 25-N2
Refer to the followingaccessoryinstrtrctwns for addit ionol
centml wininginformatlon.
Flrcstat Form 690,50-N1
LStatus Panel .. Form 530.11-NIO.I
PurnpdownKrt form 530.25-N1.8
Night Setback Relay Eorm 5.30.I1-NIO.4
DUCT CONNECTIONS
The supply and return aII duct can be ~f)nnetted to the sop-
porl angleswh]cbare part of the roof curb packdge.This
allowsthe installation of the duct work and roof curb before
installingthe unit, All duct connectloos are corrtalnedwlt}1-
in the roof curb, Refer to Fig, 11for duct connection di-
menslonsfor the bottom side-by-sidearrangement.
Refer to Form 55.70-N1for suggestedmetinsof instalhng
and lnsulatingducts.
WhenJ unit ISused with ace]hngplenum return alr system,
sound nKIybe transmitted from the un]t thru the ce]lrngt{)
the conditioned space. For such appllc,iti~)ns,there must be
asound absorptIon chamber instaIledon the unit reluIn~1r
inlet as shown mFigure 12. In this WIY,sound genertitedby
the unit is absorbed in the chamber and not transmitted (o
the conditioned space. The chamber may be cx~nstructed of
fiberglassduct or metal duct hned WI{IIsound absorption
material. CeiFingreturn grillesshould be located aminimum
of 12feet from the end of the sound chamber. In every ln-
stallation areturn ~u duct must be installed to the unit.
FILTERS
All filters being usedin these units are 2“ th]ck. Throwaway
filters or 55(zefficient bagtype filters are available as factory
options. Cleanable filtersor 30PZeff]cient throwaway filters
are ~vaIlableas accesw~ries.The cleanable f]lters havean alum-
mom mesh media that may be cleaned in hot water or steam,
reoiledand reused lndeflnltely. The 302 and 55<’[efficient
fiiters are availablet(]meet specificatmns for Improvedalr
fl]tr~tlon. Refer tc}Table 4f{)rfllter si/es tind qudnlltles.
TABLE 4 – FILTER REQUIREMENTS
Unit 2“ Throwaway
Model 2“ Cleanable 55% Bag
2“ 30%
DSV300 (10) 2X20X 25 (4) 12 X20 X24
(4) 12 X24 X24
DSV360 (6) 2X20X 25 (4) 12 X20 X24
(91 2 x 20 x20 (4) 12 X24 X24
DSV480 (6) 2X20X 25 (5) 12 X20X 24
(12) 2 x 20x 20 (5) 12 X24 X24
1
1-1/2” 1-1/2”
+16-3/4” +.- 16-3/4” ~5-1/2 *3,4,, L6.,—– —100” (DSV300, 36o)
,, 1. 120” (DSV480)
I--––DL.
~~
~------~:
‘f:* *
r,
II 1—
?’
DUCT Io
SUPPLY AIR DUCT u
SUPPORT RETIJRN AIR DUCT
RAILS I(BY FIELD) IBY FIELUI
.4
(PART OF
cun B
ACCESSORY) ‘II i
I
t- J’
17-1/4,7 r~17-1/4”
~rs
R H END VIEW
FIG. 11 – DUCT CONNECTIONS
r~1 ~
A3-1/4”
~~
Pp,
.*:. *I<
r
-1 “),UNIT BASE
t1,
L, f
,. .
‘ROOF C(JRR
A
/S1’PPORT
ROOF CURB ‘4)LS
(P&RT OF 1
~J,~T
LuRR
ACCESS OR?
-3“ -- 2-3/4” --
●The gasket materla Ithat IS shl pped with each roof
curb accessory must be properly applled before
Unit IS Set on the curb to prevent mo, sture from
leaking lflto the cond!tloned space.
L====Y2
●
❞❞✍✍✌ ✍☛✍
✍II -p
j{ ‘1
.———
J!-------------
DuCT WORK
(8> FIELD,
/–- .1 ..–
100.1/2” (DSV300, 360]
120-1/2” (DSV480) 4
REAR VIEW
RE TURV AIR SOUNO
/ABSORPTION CHAMBER
t
CEIL1N6
PLENuM
o
SPACE
iCEILING ~
~“
RET(IRN 4PJIN -—12 b,llN—\
AIR R[T\JRN
RETURN AIR GRILLE AIF3
FIG. 12 – SOUND ABSORPTION CHAMBER (JHIL 1F
Central Enwronmental Systems 11

530.25-N2
ECONOMIZER RAIN HOOD OPTION CAUTION. Neverouerate the unit without installingthe
ho(xl o; moisture will be drawn into tht;unit.
The outdoor and return air dampers, the sprirtg-returndam-
per actuator, the linkage,the enthalpy changeovercontrol.
the mixed air temperature control and the minlmurn posit]on
potentiometer with manual auto switch are factory mounted
as part of the economizer option. The rain hood is shipped
in aseparate packageand must be assembled to the unit per
the assemblyinstructions in Form 530.25-N1.4.
CAUTION: Never operate the unit without installingthe
hood or moisture will be drawn into rhe unit.
FIXED OUTDOOR AIR RAIN HOOD
The fixed outdoor a]r damper with amanual adjustment arm
is factory mounted on all units without the economizer op-
tion. The rain hood is shipped in aseparate packageand must
be assembledto the unit per the assembly instructions in
Form 530.25-N1.3.
CAUTION: Never operate the umt without installingthe
hood or moisture will be drawn into the unit.
EXHAUST AIR RAIN HOOD OPTION
The barometr~cexhaust dam~rs, the powered propeller ex-
haust fan and the damper motor end switch are factory in-
stalled and wired as part of the exhaust air option. The rain
hood is shipped in aseparate packageand must be assembled
to the unit per the assembly instructions in Form 530.25-N1.2
NOTE: Theexhaust hoodfor the DSV 480 is shipped in two
pzckages.
STATIC PRESSURE REGULATOR ACCESSORY -
The Static Pressure Regulator must be field installed. Selec-
tion of best location and setpomt are the responsibilityyof
the system designer.Refer to Figure 560.20-N2.2for instal-
lation Instructions.
OPERATION OF STATIC PRESSURE CONTROL
Whenstatic pressureexceeds the static pressure setting. the
control completes an electrical circuit to the damper motor.
The motor changesthe dampers to aposition that reduces
the static. Whenthe static reduces to the setpoint of the con-
trol, the electrical circuit is broken, stopping the motor In
this new position, Asecond contact drivesthe motor In the
oppos]te direction on adecrease in static.
x
H
NO AIR FLOW
?’ STATIC ~D. A
-DUCT ~
1HEAD
TO m40-
POWER ~-Q a
o6
REFERENCE
DAMPER MOTOR STATIC PRESSURE
PRESSURE
CONTROL
OPERATION
D.SV VARIABLE AIR VOLUME
The operation of the D-SV unit can be divided into five
systems.
1,
2.
3.
4.
5.
Economizer System (optional).
HeatingSystem (optional –used for night setback and
morningwarmup only).
CoolingSystem.
Exhaust Air(optional).
VariableAir Volume Dampers(optional).
GENERAL
Variableair volume(VAV)systems operate on the principle
that spacetemperature can be maintained by varyingthe
volume of constant temperature air deliveredto the space.
Asthe space load decreases,air deliveredto the space 1spinch-
12
ed off. The optional variableair volume dampers will then
closeto hold aconstant duct static pressure. With lessair re-
quired, both the fan and compressorrequ]re lesshorsepower,
and operating costs are reduced.
The D-SV is acoolingonly unit. Electric heat can be added
for use duringnight setback or morning warmup only. Dur-
ingnormal operatmrr the heat is locked out.
The DSV control ISamicroprocessorbased Honeywell
W7100 dischargeair controller with adischargeair sense].
The control tries to maintain afixed dischargean tempera-
ture by modu]atmgthe economizer and sequencingstages
of mechanical cooling. The d!schargeair setting ISflelclad-
justable but isset at 55°Fby the factory, The control JIS{J
has an adjustable cent ml band. The control band ~djustnwnt
sets aregionof ternperature centered around the dlschargc
alr set point,
The control energizesor de-energizescoollngstage~Jnd (Jp- —
tional economizer to maintain the dischargeair (D/A) temp-
erature in the control band.
Central Enwronmental Systems

5
It is recommended that the control band be set as shown:
8°F for D SV300
7°F for D.SV360
L6°F for D. SV480
The controller hasabuilt in feature which providesa4min-
ute off cycle and a4minute on cycle to prevent compressor
rapid cycling.
Whenpower fails, the W7100 shuts off all stages of mechan-
ical cooling.Whenpower ~esumes,the economizer willfirst
be modulated open, prowdedenthalpy of the outside air is
suitable. Once the economizer is open, mechanical coofing
issequenced back on with aminimum of 4minutes between
succeedingstages, If outside air enthalpy is not suitable, econ-
omizer modulation is bypassed, allowingmechanical cooling
to beginsequencingafter 4minutes, with aminimum of 4
minutes between stages.
Whenthe D. SV does not haveeconomizer option, a510
ohm, ]/4 watt, 570 resistor is placed between termina]s9
and Yon the W7100 to eliminate the economizer delayand
energizemechanical coolingimmediately.
COOLING
Whenthe dischargetemperature has deviated 1‘F above(or
below) the control band, additional stagesof coolingwill be
turned on (or off) at four minute intervals until either the
dischargetemperature drops (or rises)to within one degree
of the control band, or the dischargetemperature falls(or
brises)at asufficient rate that will insure that dischargetemp-
erature will soon be within the control band (about 10mm-
utes). The rate feature prevents needlesscycling causedby
changesin load. The last stage to be turned on or off isre-
ferred to as cycfrngstage.
D-SV units have nominal cooling capacities of 25, 30 and
40 tons. The DSV300 has two stagesof capacity achieved
by unloadingasinglecompressor. The D. SV360 has three
sttigesof’capacity achieved by two unloading solenoidson
one compressor.The DSV480 has four stagesof capacity
achieved by two compressorseach with an unloader.
All systems are completely factory assembled, refrigerant
piped, refrigerant chargedand leak tested. Astrainer drier
and atno]stureindicator are installed in each liquid line. A
h]ghpressure cutout is located in each system(’s) on the
compressorbefore the dischargevalveand will de-energiie
the compressor control circuit should the system(’s)dis-
chargepressureexceed 395 psig.The pressurecutout wil[
remain de-energizeduntil the system(‘s)pressure returns to
310 ps]g.The opening of the high pressurecutout wdl en-
ergize thekwkout circuit. The control circuit must be open-
ed and closed to reset the lockout circuit, AntLcycletltning
is part of the compressorprotection module. This prevents
the compressor from lapid short cycling. Alow pressule
cutout 1slocated in each system(‘s)on the compressorbe-
fore the suctmn valveand will de-energl/e the c(~n]plcssor
Lcentrol circu]t should the system(’s) pressuredrop t~~7
psig.This control willautoma[ ically rese[ when the suetl<)n
pressurerises to 22 psig. The operungof the low p[essute
cutout willenergwethe Iociout CIIwit.
The control circuit must be opened and closed to reset the
lockout circuit.
Normalsequence of operation is as follows:
1. Poweris supplied to the unit through the disconnect
switch. The switch can be field-installedor factory-
installed as an option.
2. Assoon as power is supplied to the unit, the compres-
sor crankcase heaters ITH (and 2TH)will be energized,
CAUTIOIV:Do not attempt to start the compressorswirh-
out at least 8hoursof crankcaseheat or com-
pressordamagewill occur.
3. If the unit is not equipped with amorningwarmup ther-
mostat or aday-night switch the 7R relay coil will be
energized. The 7R contact closesenergizingthe 3M coil.
3Mcontacts close, starting the supply air fan motor. Af-
ter an adequate air flow is established, 5LP closesto en-
ergize6R coil, 6R contact closesin the compressor con-
trol circuit. If the unit has aday-nightswitch the switch
must be in the day position. If the unit has amorning
warmup thermostat it must be sat]sfiedor the above fan
and unit operation will not occur.
4. If the D. SVunit does not havean economizer cycle or
if the outdoor enthalpy is too high,on demand ,the dis-
chargeair sensor will signalthe logic panel to closethe
“Cool 1“ contacts and energize IR coil.
5. 1Rcontact closesand energizes IM coil, which starts the
(No. 1) compressor]n an unloaded condition. At the same
time. 4M isenergized to start the condenser fans.
6. If the dischargeair temperature is not within 1°F of the
control band the logic panel will energizethe following
stages.
a. “Cool 2“ contacts will energize.On the D-SV300 this
energizesthe 2R relay. The 2Rcontacts close de-ener-
gizingthe compressor urdoadlngsolenoid which loads
the compressor.On the D. SV360t}usenergizesthe
~R re]uy,The 2R contacts close de-energii.ingthe com-
pressorunloading solenoid which loads the compressor
to 2/3 or full capacity. On the D. SV480 this de-ener-
gi/es the compressorunloading solenoid which loads
t}leNo. 1compressor.
b. “COO13“ contacts will energize. On the D..SV36Othis
de-energizesthe compressor unloading solenoid which
Ioddsthe compressor to full cap~ctty. On the D.SV480
this enclgizes the 2R relay. The 2R conlacts close and
energize 2M COIIwhich starts the No. 2c~~mpressorin
an unk}.ided condition.
c, “COO!4“ contacts will energize. On the D. SV480 this
de-energues the ct~mpressorunloadlngsolenold winch
l(xidsthe No 2compressor.
7, The u(~mpressorshort cycle time and low vt)ltagep]otec-
tmn ISp~rt of [he solid stdte compressor protec~lonm[~d-
ule. It plevents Jcompress(~[fr(~mstarting unless It has
Central Environmental Systems 13

m m
pf
msp
oc1
1 2
d 1 C2
Dand condenser fans No. 3 and 4 on the D. SV-
360 and D. SV480 WI]] be de-energ]zed by 2TH. (Refer
to Table 5.)
TABLE 5–AMBl ENT THERMOSTAT SETTING
U1
D*~F
Df~
! f
ECONOMIZER SYSTEM
Ec
1. Outdoor d
A(R
E-
Ma(p- I
Epstage t~f’c[mling
whenever the outdoor au is cool and dry y
iThe n
dm m
aa
eu
mp
d d
oaThe rnlnimum outdoor atr ad-
juster is factory mounted In the top of the damper motor
e(
thmg so as tt]
limit t}le introduction of outdoor air. As noted in
the corrt rol will not allow outduor ~]r to enter the unit
during high humidity condit a
tDuring dry condltlons, alr ISInt reduced ut o
higher ambient.
TABLE 6 – ENTHALPY CONTROL (SET POINT “B”)
RP E C
HMIAcID~M,n
%CT——
78 I73 68 63
I69 ]64 ]58
4Fp
ebc(
ture on the cool \Id12rf the cooling IS“free”
If ef{]l
e
c a (p}IIg}I
c a
c
adtut t
e
m
DAMPER LINKAGE ADJUSTMENT
w-
r r dt
l
?
Turn the rninlmum outdoor mr adjustor to the 100’/
outdoor alr pos]t AlltIIf’ not,
loosen the drive rod bolt
c
blades ~hould
be full}’ closed. hnkdge connecting (1ICoutdoor-” air
Jnd the return ti]r dampers must rm)ve freely.
Return the nun]mum outd(mr alr tid]u$tor to the 100’%
outdtwr ar[ p~)sltl~lrl irnd check for co mpletc f’reeck)rn 01”
hnkage movement JSthe ret urn ~lr Lfarnpel JCI(JW.
Set the nunlmum (~utdo~~rair tidlustor f01 the rnmlmum
vr
HEATING SYSTEM
A,gJsor elect r]c Iledtlrlg wet ]{)n 1>{)j fcrcdti~JI.Ic[or~ n
option, Refc rto t}le }mtite r]rl~tructlon for :IddI[ror)J] In-
!~)rln.itlt)rl.
(Jaj [Icdt Option 1
Optron Form 530 25-N 19
The beat on a D. SV unit WI]] unlv operJte when the unit
rslrl the nlgllt mode of i)perirtion or during the rm)rnlr]g
wwrnup nmie. During nigbt jet b~ck t}]e heat wi II cycle I)tf
c~f’Jsepsnrt che~tIng tIlermflstat. During r]l[)rnmg warmup
the heatis energwedb} (he rm)rnrng wtirrnup thermostat,
During un) heatrng mode of” i)per.it]t)n tile tiIIflow (Ipera{es
J1 fll ii !lOW
Al RVOLUME CONTROL SYSTEM
—.
7hc Ilr VI,llIme S} stcIo ~t]nji>tj ot
1DJIIIpC Is.Alr Volume Co]]tr(]l. (ftiuloly opt]on )
1Col]troji l
O
CE S

5
Asthe air quantity required by the VAVoutlet boxes de-
creases,the static pressure in the duct system increases.
Optional modulating dampers can be ordered with the urut
to provideaconstant static pressurein the duct system at
all flow conditions. The optional air volume dampers are
-controlled by the accessory static pressureregulator that
is located in the conditioned space. Asthe duct static pres-
sureincreasesabovethe set point, the static pressurecon-
trol will modulate the air volume dampers to maintain the
static pressuresetpoint.
The static pressureregulator has arange of 0.01 to 6.0
inches of water column with adifferential adjustment of
0.05 to 0.75 inches.The static pressureregulator is field
connected to aterminal block in unit main control box.
CHECKING LINKAGE ON Al RVOLUME DAMPERS
After power has been supplied to the unit, the air volume
dampers should be checked to make sure they operate free-
ly and open/close properly. It may be necessary for the in-
staller to adjust the linkage between the damper motor and
the blades due to looseningin shipment.
CHECKOUT PROCEDURE
After electrical power is connected to the unit, the opera-
tion of the air volumedampers, damper motor, etc. canbe
checked.
The damper motor has electric wireleads. Wires“BI”,
“W1” &“R1” can bejumpered to cause the air volume
damper motor to drive to the open position or the close
-position. The dampers and linkageshould be checked for
position and linkageshould be checked to insure linkageis
adjusted properly and tight with “open” and “closed”
dampers.
1. Open Dampers -Jumper terminals “R1” and “WI” on
damper motor.
2. ClosedDampers –Jumper terminals “RI” and “BI” on
damper motor.
EXHAUST AIR SYSTEM
The exhaust air fansare energized by manually closingacir-
cuit between terminals 60and 64 of terminal block 2TB or
automat ically by an end switch on the economizer damper
motor. Asthe economizer damper opens, it closesthe end
switch on the damper motor and turns on the exhaust air
fans. The degreeof blade openingat which the exhaust fans
are energi~edcan be adjusted by the followingprocedure.
Refer to Figures 13and 14.
1.
2.
3.
4.
Usethe black scale plate as an indicator of motor position
for switch operation.
Loosenthe thumb nut and the cam lockingscrews.
Set the operational and differential cams.
Check switch adjustment by movingthe adiustor 2RH to
J
movethe motor. Switch should clic~ when-desiredmake
and break points are lined up with index mark and the
exhaust fan should start and stop.
WARNING: 1.?0volt power is connected to the switch.
5. Tighten thumb nut.
CAUTION: Do not attempt to turn the motor shaft by hand
or with awrenchasdamageto the gear train
wi[lresull.
OPERA TCOMAL
c’”~
3
DIFFERENTIAL A“
CAM
TWJMBNUT ‘*
!“
SCALEPLATE 3,
I.d
SLOTIN J‘—
SCALE
LOCK
FIG. 13 – INTERNAL VIEW OF DAMPER
ENDSWITCH MOTOR
@STARTING POSITION @,,, OPERATIONAL CAM @SET DIFFERENTIAL CAM
(d d,s,rod)
INDEX INOEX INDEX
CAM
SWITCH, ONAL IAL ROLLER 7MENT
AM
REw
ALEPLATE
ALIGN ZERO POINT ON DESIRED SCALE LOCATE DESIRED SWITCH MAKE POINT ON
OPPOSITE INOEX MARK 5CALEPLATE ANO ALIGN wITH INDEX
MARK TURN OPERATIONAL CAM UNTIL
ROLLER IS ON POINT OF uPPER CAM LOOE
TIGHTEN OPERATIONAL CAM SCREW
FIG. 14 – ADJUSTING DAMPER MOTOR END SWITCH
Central Environmental Systems
SCREW
15

5
SUPPLY AlRBLOWER ADJUSTMENT 4. tenslm mead belt shrll be adjusted PMthe fol-
procedure. See
required maximum optllms, and
the static resisttincesof
RPN1
fIL)m the hl(lwt’r
(tdet
a a f
At}M
It
After n
If a
Note
1.
7
-.
M
Table I
Both movablefhnges on a
TABLE 7 – SUPPLY AIR SYSTEM ADJUSTMENT
MODELITURNS 1--- RPM
OPEN’ 7-1/r 10 T-m 20
DSV360
.—,L
=-~..:. -=2=g..-,:.+.%
—
3—&876 1038 ~–
2—908 ~1076 I–
1
J,
b
(
t
(ro
$
1
tiu a srtua
as
BELT DEFLECTION FORCE (LBS.)
——
SECTION MINIMuM MAXIMUM
“B” 45
“c” 11 14
e
f
-
t4
“L
‘(
‘t
(x) (c)“
FIG. 15– TYPI CAL MOTOR MOUNTING ASSEMBLY
2
”
CE S

After the pre-start check list has been completed:
1.
L-)
.
Start the supply air blowers,
Adjust the resistancesin both the supply and the return
duct systems to balance the air distribution throughout
the conditioned space. Thejob specifications may re-
quire that this balancingbe done by someone other than
the equipment installer.
To check the supplyalr CFMafter the initial balancinghas
been completed:
1. Drl[ltwo 5/16“ holes (A &B)as shown in Figure 16.
2. Install two 1/4” O.D. tubes, one between the filters and
the air entering side of the evaporator coil and one be-
tween the supplyair blower(s)and the air leavingside
of the evaporator coil.
RIGHT END
VIEW
‘DIA.
5{16“ DIA.
JB
o\=UNIT
DRAIN
—
—
—
—30’’--- +–– -33” —
FIG. 16 – HOLE LOCATIONSFOR SUPPLYAIR
CFM CHECK
NOTh”: Toget aproper staricpressurereading,[he sensing
tubes should (A) be inserted through the rearor
condensatedrainside ofthe unit (B) be located
approximately 6inches awayfrom the coil surface
and as close to the center of the coil height aspos-
sible (C) extend into the unit approxiwutely 12
inches.
3, Makesure thfit the access panels [or both the suppl} mr
blower motor findtbe filters ~le secured. These panelsdo
not hoveto be secuJeclwherr the 1/4 ]nch tubes entel
the units because the blowel and faltercompartments
operate at anegative pressure.
4, Makesure that the tube openingsare perpend]cu]arto the
Iir tltnv so that vekrcitypressurewillnot affect the statIc
Lpressurereurilngs.
CAUTION.
530.25-N2
If this method is used, the holes must be sealed
with dot plugs(P/N 029-13880)or equivalent
to prevent moisturefrom leakinginto the unit.
I
1
)
,
1
;0 80 43 160 1;0 1;0 1;0
PERCENT NOMINAL CFM
[%OF NOMINAL CFM
MODE L80 90 100 I110 120
C.F .M.
DSV300 8000 I9000 10000 11000 12000
DSV360 9600 10800 12000 13200 14400
DSV480 12800 I14400 16000 17600 19200
FIG. 17 – PRESSUREDROP ACROSSA DRY
EVAPORATOR COlLVS SUPPLYAIR CFM
5. Usingan inclined manometer, determine the pressure drop
acrossadry evaporator coil. Since the moisture on an evap-
orator coil may varygreatly, measuringthe pressure drop
acrossawet coil under field conditions would be inaccu-
rate,
NOTE: Disconnect the compressorsbefhre taking an,vtest
measurements to assureadrv evaporator coil.
6. Knowingthe pressuredrop across adry coil, the actual
CFMthrough the unit can be determined from the curve
in Figure 17.
,~rOTk-. OnDSVun[ts a[iau-LwhitHedampersih unit and
termitlal bc)xesill du(t s)’stem nwst be c>penwhen
checkitlgairquattti[>’,
If the CFMISabove or below the specified value, the supply
air motor pulley may haveto be readjusted, Alter one hour
of operation, check all belts and pulleys for t]ghtness and
alignment.
WAR,VI,}’G.Failureto properly adjtist the total system CFM
canresult in extensive blower damage.
Cerltral Environmental Systems 17

530.25-N2
MASTER PRINTED CIRCUIT BOARD &PLUG-IN
RELAY ASSEMBLY
AUof the control reltiysthat are required for unit operatmn
are mounted on the printed circuit board. Figure 9shows
this assembly which is located In the main control panel. All
of the relaysare of the plug-invariety, no wiringconnections
haveto be removed to replace arelay. Since the relays are
transparent, the mechanical contact switching can be observ-
ed for easier electrical troubleshooting.
The low voltagefield wiringis to be connected along the top
of the printed circuit board at the eyelet connections. Each
terminal ISmarked both numerically and with letters corres-
pmding to the set-back heating thermostat for easier mstall-
ation.
Twojumper plugs,one red and one white, are located at the
top of the board. Whenthey are removed and replaced with
the connectors of the serviceanalyzer, the analyzer will over-
ride the dischargeair control. AHsystem functions such as
heating, cooling,economizer, and night set-back can be slm- -
ulated. Malfunction indicator lightsare provided to deter-
mme which system has malfunctioned,
CAUTION: Whenremoving the connectors of the service
analyzer, the two lumper plugs(one redand one
white) must be reinstalled into their proper soc-
kets before the s,vstemcanfunction.
The procedure for troubleshooting aunit with aserviceana-
lyzer connected to its printed circuit board is outlined below.
SERVICE ANALYZER
The analyzer allows complete over-ridecontrol of room
thermostat from the units Printed Circuit Board located
withrn the control box of the unit. From this posltlon, the
user can operate the system in coo[ing,heating, fan or econ-
omizer operation.
Make the followingconnections:
1. Prior to connecting the ServiceAnalyzer, disconnect
power to the umt (high voltage),
2. Removethe red and white, 12-wire,jumper plug connec-
TABLE 8 – SERVICE ANALYZER FUNCTIONCHART
3.
tors from the field servicemodule connections located at
the top of the printed circuit board by squeezingthe re-
leaseson the sidesof the plug. Removewire 119Gfrom
the PCB,
Install the female portion of the 12-wirered analyzer
pluginto the red module connection and the white ana-
lyzer plug into the white module connection of the print-
ed circuit board. See Table 8.
NOTE’ Make sure that all switches on the serviceanalvzer
are in the “OFF”position prior to supplying power -
to the unit.
ISWITCH POSITION
==-1=1=
Compr 2nd Stage
~
~oT4-of,-
Heat 2nd Stage Ii---
Heat St 1
St 2
——
Night Setbac~ ‘-1 1-
cool -off
(cool )
Nqht Setback
tr---
Heat St 1
(heat) St 2
COOL
St 1
Econ
St 1
St 2
Econ
St 1
Cpr
-St 1
St 2
Cpr
off
off
St 1
St 2
Cpr
off
FAN
Auto
On
Auto
On
Auto
On
Auto
On
Auto
On
Auto
On
Auto
on
Iiutll
On
—
NSE
G
off
off
off
off
O;f
on
011
+
ST 1ST 2
HEAT HEAT
off off
—.
off
t
off
off Toff
off--1 off
~
On Ioff
LIGHTS
~
ST 1ST 2
COOL COOL
off off
0;” off
On off
On
1
‘On
off
-1 of{
ECON
ON
.— -
On
off
off –
off
off –
FAN
T
On
on
On
On
,-On
PROPER
OPERATION
Fan on, OSA.
dampers operate
tu setting of
ml xed alr control.
Fan on, Compr #f
on, OSA. dampers
operate to sett{ng of
m{ xed a)r control
Fan &Compr ##l
on, w[th OSA
dampers open to
mjn poslt(on
Fan, Co= ,2,
run w)th OSA
dampers open to
mln pos(t[on
Heat seitlo-n
operates on
r{,duced capacl,y
Heat sectuon o~er
ates full c<ipac)ty
No ~ool lng, econ
or fan opera tnon
Heat &fan only
operdte from
NSBThermostat
18 Central Envlronmcntal Syslems

530.25-N2
FIXED OUTDOOR Al RADJUSTMENT EXHAUST AIR PERFORMANCE
Toadjust the amount of fixed outdoor au, see Figure 18. Lo-
cate the amouni of outdoor air required and the return duct See Figure 19for the performance of the exhaust air fans.
static on the chart to determine the position in which to set Locate the amount of return duct static on the left hand
the blades, The blades can be adjusted by varyingthe position sideof the chart. The amount of air which will be exhaust-
of the adjustment arm on the left sideof the fixed outdoor ed can be read from the bottom of the chart.
air damper.
o
0
0
0
0
0
BLADE
POSITION
Q
w
m
~
v
II
.,
.
L\1Bc
+
FIG, 18 lb io io 40 50
‘%OUTDOOR AIR
–FIXEDOUTDOORAIR ADJUSTMENT
0.5
0.4
0,3
0,2
01
\I
,
\:
\
‘\lh=
!1. .
tOSV300/360’ UN ITS DSV480 UNIT
..
,,
3000 4000 5000 6000 7000 8000 9000 10000 11000
EXHAUST AIR CFM
FIG. 19 – EXHAUSTAIR PERFORMANCE–ALL FANSRUNNING
Central Enwronmental Systems 19

530.25-N2
TABLE 9–BLOWER MOTOR AND DRIVE DATA
MODEL
,DSV
300
360
480
h
f@TOfW 1, ADJl$TABLE 1FIXED
i3L0WER*~R M0T(3F?PULLEY BLOWER PULLEY
.
J& HP VICE FRAME PITCH PITCH I
FAC- ~,*E DIAMETER, ,~:[:$ DfAMETER, OORE
fNcHEs INCHES INCHES
T(3R
913-1098 7.5 1.15 213T 49-5.9 1-3/8 9.4 1.7/1 6
1025.1210 10 1.15 215T 5.5-65 1-3/8 9.4 1-7/16
780-940 10 1 15 215T 4.9.5.9 1-3/8 11 1.1 5/1 6
924.1114 15 1.15 254T 5.8.7.0 1-5/8 11 1-15/16
924-1114 15 1.15 254T 5.8-7.0 1-5/8 11 1-15/16
1190 20 1.15 256T 7.2’ 1-5/8 10.6 1-15/16
588 B57 2
58,8 B57 2
63.8 B62 2
63,8 B62 2
63.8 B62 2
62.9 C60 2
NOTE All motors are 1750 RPM, have solid bases, and require starters with overloads, which are factory supplled
●2O HP drive has af!xed motor pulley
TABLE 10 –RESISTANCES FOR UNIT OPTIONS AND ACCESSORIES (IWG)
300
360
Mom%. ,UPTON ORACCESSORY I- I?E8WT’ANCE{\WG)@C)ESHN4ATED,&FM
10000 Ilo@o 12000
*G400, G560 Gas Heat 0.01 0.02 0.02 0.03 0.03
E@IO, 060, 080, 100, 120 Electric Heat 0.01 0.01 0,01 0.02 0.02
Exhaust Air 0.01 0.02 0.02 0.03 0.03
Economizer Return Air Damper for End
Duct Connections 0.12 0.15 0.19 0.23 0.28
Economizer Return Air Damper for
Bottom Duct Connections 0.06 0.07 0.08 0.10 0.12
2“ 30% Efficient Filtersl 0.01 0.01 0.01 0.02 0.02
Bag Type Filtersl 0.07 0.09 0.11 0.13 0.16
Discharge Alr Dampers (Fully Open) 0.13 0.17 021 0.25 030
End Duct Connection 0.10 0.13 0.16 -- 0.19 –0.23
9600 10800 12000 13200 14400
G400, G560 Gas Heat 0.02 0.03 0.03 0.04 0.05
E040, 060, 080, 100, 120 Electric Heat 0.01 0.02 0.02 0.02 0.03
Exhaust Air 0.02 0.03 0.03 0.04 0.05
Economizer Return Air Damper for End
Duct Connections 0.18 0.23 0.28 0.34 0.40
Economizer Return Air Damper for
-
Bottom Duct Connections 0,08 0.10 0,12 0.14 0.17
2“ 30% Efficient Filtersl 0.01 0.01 0.01 002 0.02
Bag Type Filters’ 0.06 0.07 0.09 0.11 0.13
Discharge Air Dampers (Fully Open) 0.19 0.24 0.30 0.35 0.40
End Duct Connections 0.14 0.18 -0.22 —---—.
0.27 0.32
12800 14400 16000 17600 19200
G560 Gas Heat 0.04 0.05 0.06 0.07 0.09
G800 Gas Heat 0.05 0,06 0.08 0.10 0.12
E040, 060, 080, 100, 120 Electric Heat 0.03 0.03 0.04 0.05 0.06
Exhaust Air 0.03 0.04 0.05 0.06 0.07
Economizer Return Air Damper for End
480 Duct Connections I0.10 I0,13 0.16 0,19 0.23
Economizer Return Air Damper for
Bottom Duct Connections 0.06 0.08 0.10 0.12 0.14
2“ 30’% Efficient Filtersl 0.01 0.01 0.01 0.02 0.02
Bag Type Filtersl 0.08 0.10 0.12 0.14 0.16
Discharge Air Dampers (FulIy Open) 0.24 0.30 035 0.41- –O48
End Duct Connections —0.25 0.31 0.39 0.49 0.62
1These resistances tnclude adeduction for 2“ throwaway or cleanable fl Iters
DAdd these resistance values to the available static precsure shown (n blower perforrm~nce data table
20 Central Enwronment,+l Systen)s