Specifications

530 25-NI
TABLE 1 –APPLICATION DATA
MODEL DISC/D2SC
300 360 480
200
volts
187/21 8
Voltage Varlatlon, Min/Max 1
230 Volts 216/252 — —
—
460 Volts 432/504
575 volts
SUPPIY Alr CFM, Mln/Max
540/630
8,000/1 2,000
9,600/14,400 ‘) 12,800/1 9,200 ‘-
Wet Bulb Temp. (0F) of Air on Evaporator Coil, Min/Max 57/72
Dry Bulb Temp. (0F) of Air on Condenser Coil, Min/Max2
0/1 15 -
Minimum Dry Bulb Temp. (“F) of Air On:
Gas Fired Heater
20
Maximum Dry Bulb Temp. (0 F) of Air Off:
-
Gas Fired Heater 160 145
T
155
Electrlc Heater 180
180
180
1Utl IIzatIon Range
“A” m accordance with AR I Standard 110
2 Low Ambient accessory (Form 530 25 N1 7) may be requ !red for 0° F outdoor ambient
TABLE 2 – COMPONENT WEIGHTS (LBS.)
COMPONENT
MODEL
DSC300
DSC360 DSC480
Outdoor Air OptIon
Fixed Outdoor Air
75 75
85
Economizer Option 220
220
247
Supply Air Motor &
Drive 7-1/2 HP
130
.
—
—
10 HP
i45 145
—
—
15 HP
—
185 185
20 HP
— —
215
Heating OptIon
Cooling Only
60
60 65
Natural Gas Heat
G400
200 200 –
<560
300 300 3oii
G800
—
—
400
Electrlc Heat
E040
110 110 110
E060
115 115 115
E080
120 120
120
E1OO
125 125 125
El 20
—
130
130
Exhaust Fan 160 160
250
Accessories
Roof Mounting Curb 300
350 400
End Outlet Kit
105 105 130
CONDENSATE DRAIN CONNECTION
The condens.rle drain, Ioca[ed on [he rtgh t end of the unit,
shouid be cunnectecl ICI~n open d ItiIn or allowed to dIs-
charge directly onto tbe ground or mot. A trap MUST he
[nstdled, See FIgu re 4.
The .3” dlmenslon must equo]
01 e<ceed the negative s[at IC
pressu)e developed by the supply ir)r blowers, If It dt>esn’t,
the condensate will nt)l drfiln properly tind will over! low the
dIa In pan.
The trap must be at least 2“ deep to mirlnttiin ~ water setil
under all operating condltlf)ns, especially when the bk)wels
ate start ing up,
UNIT CONDENSATE
DRAIN CONNECTION
\
FIG. 4 –
RECOMMENDED DRAIN PIPING
POWER AND CONTROL WIRING
Install elect rlc<il wlrtng In ticcot d.rnce WItb (he Iate\t Na[ I(~Iv
u] Llectrica] (’ode (N} PA Stond~rd N(). 70) and Ior locul
regu Itit Ions. Tbe um t shoulci be grounded in Jcci)rdance wlt h
these codes.
POWER WIRING
The f’ield power wlrlng can be brought into [he control be)\
through the 4- I /2” di~meter sleeve in the base of the unit
( Fugure 5 ) or through the 3“ threaded corrdutt connector in
the s[de uf tbe corrt rol box ( F!gure (I). The unit I\ equlppecl
wlth a corraluIt ter nllna{ lon pkrte above t he 4- I / 2“ dla meter
sleeve. Tbe plate hirs 1-23/32”, 2-l /2”, an(l 3-5/ 8“ dla metet
corrcentrlc knoch~)uts i or units wlt h d)scon rwct
swlt cb, t be
power lugs can be rotated 90 degrees clockwlse to fircllit~te
entrance ()[ tbe power wiring f’rum the side ut the box 1 (I
do tbls remove t[)c 1/4” bolt bc]]dmg the power lug Next
remove the slot ted spring pm WIIIC}I keeps the Iug I
I()111ro-
tating. Turn the power tug 9(I degrees clockwlse tind Iepkrce
both the dotted
$pI ing pln and the I/4 ‘ bolt.
—
—
4
CES