Carrier 50DF Air Conditioner User Manual

 В J
Electric Heating: 182,500 to 808,000 Btuh
> Electric Cooling: 220,000 to 753,000 Btuh
> Electric Cooling: 220,000 to 744,000 Btuh
Versatile |
rooftop units —
for constant or
variable air volume
applications in the
20- to 60-ton range
AA о
ym
a
ml
LT
‘
to
NOW — with energv-
saving features for
vears of outstanding
performance
e SOLID-STATE CONTROL
LOGIC
e INTEGRATED ECONO-
IZER/MECHANICAL
COOLING
oe | OW-LEAKAGE
DAMPERS
e INTERTWINED COILS
* TWO-SPEED INDOOR“ ”
FAN OPTION
®
© Carrier Corporation 1982 Form 50DF-2P
FEATURES AND BENEFITS
OPTIONS AND ACCESSORIES
PHYSICAL DATA
BASE UNIT DIMENSIONS
ACCESSORY DIMENSIONS
SELECTION PROCEDURE
PERFORMANCE DATA
Cooling Capacities
Heating Capacities
Optional Equipment Resistances
Indoor Air Fan Pulley Data
Fan Performance
ELECTRICAL DATA
CONTROLS
Operating Sequence
Electrical Protection
TYPICAL WIRING SCHEMATIC
APPLICATION DATA
TYPICAL PIPING AND WIRING
GUIDE SPECIFICATIONS
9,10
10
10
11
12
13-15
16
17
18
19
16
20,21
Modu-Pac® |
22-24
24
25
26
27
28
29,30
32
32
32
31
33
32
33
34
35
36
Solid-state components for precise
system control — Units contain a
solid-state control system that pro-
vides maximum operating economy.
The “brain” of the system is a logic
panel that offers 2-stage heating and
cooling modes based on space re-
quirements. Panel also is the logic net-
work that coordinates operation of the
economizer, energy management and
two-speed indoor fan options.
Solid-state components require no
calibration, are easily replaced and
have long operating life.
Practical curb design for low in-
stallation costs — The curb supports
unit on the roof. Eliminates special steel
support frames and assures a low roof
silhouette. Weatherproof enclosure
eliminates need for a rooftop adapter or
roof openings that could be sources
of troublesome leaks. All utilities enter
unit within the curb; saves time and
reduces installation costs. A wood nail-
strip is also included.
Adaptable duct connections — The
Carrier design provides large duct
openings that permit low airflow veloci-
ties and even air distribution. Bottom
supply and return ductwork is easily
installed. Concentric ductwork with
diffusers also may be connected to the
20-, 25-, and 30-ton units. ..with no
internal modifications.
For convenience, alternate side supply
and return openings are provided for
horizontal duct applications. Simply
relocate side supply and return panels,
place them in the bottom openings,
relocate one interior panel and the unit
is quickly converted for side duct con-
nection. An accessory conversion kit
is required for units with economizer.
Factory-installed filter rack includes
2-in. filters.
115-volt convenience outlet — An
on-the-job power source for service
light or hand tools.
Pre-installed tracks for hydronic coil
application. Factory installed on units
without electric heat option.
Weather Armor cabinet stands up to
the weather. Cabinet design exceeds
UL and Carrier rain test requirements.
Units keep attractive appearance for
years — even in salt air or heavy in-
dustrial environment.
Time Guard® circuit — Compressor
will not short cycle on a safety device or
power interruption. Starts outdoor air
fans 15 seconds before compressor to
minimize solar heat buildup and reduce
start-up load.
Single-location power connections
— Unit is factory wired with all heating
and cooling power circuits internally
routed to a terminal block in one com-
partment. Some units, with higher heat/
cool ratios, have 2 terminal blocks. No
need to route expensive wiring to
separate heating and cooling power
locations. Saves time, money and labor.
Fixed-speed evaporator fan drive —
less vibration than variable-speed drive.
Extends belt life and minimizes drive
noise.
Manual damper, on standard units,
can be preset to admit as much as 25%
outdoor air for year-round ventilation.
CIRCUIT
BREAKERS
EE LE EE CELE REE €
CONVENIENCE
OUTLET NEL
Built-in convenience — Quick-release
access panels, slide-out filters and plug-
in relays simplify routine inspection
and maintenance.
Carrier-built intertwined refrigerant
coils have staggered copper tubes with
mechanically bonded fins to ensure
optimum heat transfer. Intertwined
design provides cooling of the full air
stream with minimum compression.
Direct-drive condenser fans are
factory lubricated. Vertical discharge
moves air quietly and efficiently.
Carrier compressors have factory-
installed service valves, crankcase
heaters, reversible oil pumps, mufflers,
overloads in the control box and
internal motor protection. Liquid line
sight glasses and filter driers are also
included.
Low-ambient temperature capa-
bility permits all units to operate at out-
door temperatures as low as 35 F.
PANEL TERMINAL BLOCK |
LOS ‚Ри
К РО AN IA
Tas $: WEA
FA
-.
HERMETIC COMPRESSORS COMPRESSOR
(Uses Suction
Pressure)
TWO-STAGE as à
ELECTRIC LE BE +
HEATERS 15 PE +
EN y
x 7 +
Xe E
О:
с 5
CIRCUIT = x ;
BREAKERS” | №. 8 i
A 8
a:
a
ALTERNATE Е
WER SENGLE LOCATION m
OPENING HEATING/COOLING
POWER CONNECTION
Modulating outdoor air control
package (economizer) — Even when
outdoor air temperatures are low, many
installations still require cooling. The
economizer uses the cool outside air to
provide this cooling. Saves energy,
reduces compressor wear and tear and
lowers operating costs.
The economizer contains these
energy saving features:
e Electronic control logic balances
the conditioned space demand against
the cooling system output. Ensures that
the economizer modulates to correct
position or closes to minimum position
to maintain a stable temperature in the
conditioned space. Never too much or
too little cooling.
‘The control logic also integrates
economizer cooling with mechanical
cooling. If outdoor enthalpy permits,
economizer acts as first stage of cooling.
If conditioned space requires more
cooling, economizer works in conjunc-
tion with mechanical cooling to maintain
required indoor temperature.
The integrated system supplies only
the amount of mechanical cooling
necessary.
® | ow-leakage dampers limit infiltra-
tion. Rated by the manufacturer at 3%
with 3-in. wg pressure differential.
e Spring return damper motor auto-
matically closes the outdoor air dampers
in the event of a power failure. (Option
or Accessory)
Two-speed indoor fan option —
Substantial energy cost savings can be
obtained because fans automatically
operate at low speed during most cool-
ing operating hours. High speed is used
only if and when necessary to maintain
comfort conditions.
A 4-stage electronic logic panel
selects the most efficient fan speed and
compressor stage to satisfy room de-
mand. Economizer performance 1s
optimized by utilizing low-speed opera-
tion except when space conditions
require the additional capacity of high-
speed “free cooling”.
The two-speed option is available in
either standard or alternate motor
sizes. All control and power wiring are
factory installed; thus, costly field wiring
and adjustments are not necessary.
The two-speed fan motors are 2
winding (4 pole/6 pole) with rpm's of
1760/1170.
Power exhaust — Coupled with the
economizer, up to 75% of the return air
can be exhausted. Also, eliminates
over-pressurization of the building.
Designed for use with bottom duct
connection arrangements. Used only
with economizer. (Option or Accessory)
Electric heaters — Three factory-
installed and one field-installed heating
capacity are available. Factory wired for
2-stage heat. Outdoor air thermostats
can be added to provide additional
stages as required. Branch circuit pro-
tection is built in on each unit. (Option
or Accessory)
Bag filter — Extended surface media
provides high filtration of 50% (NBS
Dust Spot Test). Filter frame permits
use of field-supplied bag filters to pro-
REMOTE CONTROL PANEL
{Control Box)
SETBACK/SETUP MODULE
vide up to 95% filtering efficiency.
(Option only)
Alternate indoor fan motor and
drive provides increased perform-
ance for application requirements
beyond standard unit operation range.
(Option only)
Energy management kit— Additional
energy savings occur thru the use of
the multi-feature energy management
kit which contains a setback/setup
module, a 7-day programmable clock
and morning warmup thermostat.
During unoccupied periods, the set-
back/setup module provides a select-
able amount of heating setback and
either cooling shutdown or a selectable
amount of cooling setup
The 7-day clock controls unit opera-
tion in and out of the setback/setup
modes. Clock contains a 10-hour spring
carryover for continuous operation
during power failures. Re-programming
is not necessary.
A 5-hour bypass switch provides unit
operation during unoccupied modes.
The clock and bypass switch are con-
tained in an attractive remote control
panel which installs in a convenient
location. Six status lights on the panel
indicate system operating modes.
The morning warmup thermostat
senses return air temperature and saves
eneray by keeping the outdoor air
damper closed until morning warmup
is complete. Avoids using energy to
warm cold outside air. (Option or
Accessory)
SEO GEL
gt eae wee al pw meee ee
ow EO
E.
3
I O де | 170000 SERIES
dar ws 4
{ e
И
CIC CICR.
UI III
7-DAY CLOCK
Barometric relief damper operates
automatically to help exhaust excess
air during economizer operation. Ac-
cessory comes partially assembled for
easy installation.
Roof curb supports unit and frames
roof opening. Provides a strong, water-
tight interface between unit and roof.
Once curb is set in place, the unit may
be rigged at any time — no need to
schedule around the roofer. Design
complies with National Roofing
Contractors Association (NRCA)
requirements,
Outdoor air thermostat allows addi-
tional staging of electric heat. Multiple
thermostats permit as many stages of
control as there are heaters in the unit.
Suction pressure unloader package
— Additional staging, beyond the stand-
ard 2 stages of capacity control, can be
accomplished with field-installed suc-
tion pressure actuated compressor
unloaders. (024 size is excluded, uses a
standard electric unloader.)
Motormaster® head pressure con-
trol modulates the speed of outdoor air
fan motor to maintain correct con-
densing temperature at low outdoor air
temperatures. Permits operation to
-20F, if required.
Electronic temperature sensing —
Three electronic sensing/transmitting
devices are available to meet your
specific application requirements. Each
transmitting device contains dual
(heating/cooling) set point adjustment
levers concealed under a locking cover.
Light emitting diodes (LED’s), also con-
cealed under the cover, allow diagnostic
checkout of control system from the
transmitting device. The choices are:
e Thermostat with integral sensor —
A traditional application. Both the
temperature set points and the sensing
device are contained in one device
installed in the conditioned space.
e Transmitter with remote sensor —
The transmitter contains the tempera-
ture set points and LED’s under its
cover. In this application, a remote wall-
mounted sensor is installed in the con-
ditioned space and the transmitter is
installed in a restricted-access area.
Eliminates unauthorized adjustment of
conditioned space temperature.
® Thermostat ortransmitter on subbase
—provides manual COOL-AUTO.-
HEAT-OFF system switching and
AUTO.-ON fan switching from a con-
venient location. Recommended for
units without energy management kit.
FANS MOTORS
Aan 5)
A : y ых и ECC a ata
=
ы
к Г |
ee Aa eae
A
os
ИИ,
DOC a
AA CS an a x ry WR ae ED
MODELA a
a
LAA
THERMOSTAT OR REMOTE
TRANSMITTER SENSOR
UNLOADER PACKAGE MOTORMASTER CONTROL
UNIT SODF o2¢ | os | 08 | 044 054 | os MA
OPERATING WEIGHT (Ib) .|£* |
Base Unit 3000 3700 4400 5406 6100 6485 7
Economizer 150 175 200 225 250 250
Roof Curb 125 150 175 200 225 225
COMPRESSOR Serviceable, Hermetic
No ..Type 1 O6E 2 06D 2 06D ; 2 O6E 2 ОбЕ* 2 O6E
No Cylinders (ea)...Rpm 4 1750 6 1750 6 1750 | 4 1750 46 1750 6 1750
Capacity Steps (%) (Std) 50,100 60,100 50,100 50,100 60,100 50,100
With Accessory Unloaders — 19, 38, 57, 100 16,33,50,100 25,50,75, 100 20,40,60, 80,1( 100 16,5 33, 50, 67, 83, 100
REFRIGERANT CHARGE or ) “Tyr ype 22; C Controlled by Thermostatic Expai nsion Valve —
Sys 1...Sys 2 (1b) 360 — | 2375 18 25 |290 290 370 370 _530 42 0 do 810 810
‘OUTDOOR AIR FANS a PS Direct Driven, Propeller “Type |
No ...Diameter (in.) 2 30 2 30 3 .30 3 30 4 30 4 30
Nominal Cfm 14,000 14,000 21,000 21,000 28,000 31,000
Motor Hp...Rpm 1 1050 1 1050 1 1050 do 1 1050 | 1 1050 _ 1 1 150
CONDENSER COIL
Rows.. Fins/in. 3 139 3 139 3 158 3 158 3 158 4 158
__ Total Face Area (sq ft) 31 1 38.0 | 490 610 81 5 Na 8125
INDOOR AIR FANT Belt Drive, Centrifugal Type
No. ...Size (in.) 2 15x11 2 15x15 3 15x9 4 15x9 4 15x11 4 15x11
Max Allowable Rpm 1300 1300 1300 1300 1300 1450
Nominal Cfm 8,000 10,000 12,000 16,000 20,000 24,000
Standard Motor and Drive
5 (460V)
Motor Hp 7-1/2 (208-230V) 7-1/2 10 15 20 25
Motor Frame Size
. 184T (460V)
Single-Speed 213T (208-230V) 213T 215T 254T 256T 284T
215T (460V)
Two-Speed 254T (208-230V) 254T 256T 284T 286T 286T
Fan Pulley Pitch Diam (in ) 106 106 106 106 106 80
Fan Pulley Bore 1-3/16 1-3/16 1-11/16 1-11/16 1-11/16 1-11/16
Single-Speed Motor Rpm 1750 1750 1750 1750 1750 1750
Two-Speed Motor Rpm 1750/1170 1750/1170 1750/1170 1750/1170 1750/1170 1750/1170
Motor Pulley Pitch Diam (in.)
Pulley À 65 65 65 65 65 56 )
Pulley B 60 56 56 56 60 60 4
Resulting Fan Rpm
Single-Speed with Pulley A...B 1073 991 1073 925 1073 925 1073 925 1073, 925 1225 1312
т $ 4 with Pulley A.. B 1073/751 1073/7651. 1073/751 1073/751 1073/751 1225/817
wo-Speed with Pulley A.. 991/661 925/617 925/617 925/617 991/661 1312/875
Alternate Motor and Drive
Motor Hp 7-1/2 10 15 20 25% 30%
Motor Frame Size
Single-Speed 213T 215T 254T 256T 284T 2867
Two-Speed 25471 2567 284T 286T 286T —
Fan Pulley Pitch Diam (in.) 80 80 80 80 80 60
Fan Pulley Bore 1-3/16 1-3/16 1-11/16 1-11/16 1-11/16 1-11/16
Single-Speed Motor Rpm 1750 1750 1750 1750 1750 1750
Two-Speed Motor Rpm 1750/1170 1750/1170 1750/1170 1750/1170 1750/1170 1750/1170
Motor Pulley Pitch Diam (in.)
Pulley À 53 53 53 5.3 53 50
Puliey B 56 56 56 56 56 **
Resulting Fan Rpm
Single-Speed with Pulley A...B 1159 1225 1159 1225 1159 1225 1159 1225 1159 1225 1450 —
т S d with Pulley A...B 1159/773 . 1159/773 1159/773 . 1159/773 1159/773 1450/967 .
wo-Speec with Pulley A... 1225/817 1225/817 1225/817 1225/817 1225/817 —
“EXHAUST Г ЕАМ MOTOR Qty... Hp 1 3 1 3 1 3 2 3 2 3 2. 3
EVAPORATOR COIL
Rows...Fins/in. 4 15 4 15 4 15 4 15 4 15 4 139
Total Face Area (sq ft) 151 177 248 302 35.4 354
ELEC RESISTANCE HEATERS Open Nichrome Wire Elements with Multiple-Stage Control
Heat:Kw 37,55,91 55,73,110 55,91,128 73,110,165 91,146 91,146
INDOOR AIR FILTERS |
No .. Size
. 6 20x25 9, 20x25 9 20x25 9 20x25
Standard; 2-in Throwaway 6 15x25 18. 16x25 12 16x25 27.. 16x25 21 16x25 21 16x25
2 o 3 12x24 4 12x24 5.. 12x24 6. 12x24 7 12x24 —
Bag Type; 12-in. (Opt) 3 24x24 4. ‚24х24 5, 24x24 6 24x24 7 24x24
*Unit contains one 06EA250 and one 06EA275 compressor
tStandard fan motor supplied with standard fan drive pulleys and belts;
alternate fan motor supplied with alternate fan drive pulleys and belts Other
combinations are field supplied Pulley A is installed in unit; pulley B is shipped
with unit (024-054)
{Due to large frame size, the 25 hp, 208-230 volt and 30 hp motors are avail-
able in single speed only
**The 50DFO64 alternate drive is supplied with Pulley A only
1182
Base unit dimensions
=
A ee { OUTDOOR AIR FANS:
===
——
1-5
f Pr Ве ое 5.036. 022
ee rr YES НН 4- 054, 064
| rl a — TT >
—] CONTROL WIRE
ы tu
| y OPENING 5 CONDUIT
С й
or
| |
: | ow
í | _ — 95
+ Un
ELECTRIC Her i
ACCESS
PANELS | :
par
9 \ — END
cs | : LUFT ALTERNATE FIELD POWER WIRING
: 8
> Bore {COOLING ONLY UN TI
fe 07-65 MANUAL DAMPER HOOD nr
| oe Ss = N DA INDOOR AIR FAN
ee er rma AND FILTER
— => ит 17 Access PANELS
—— I : 3
CTT 8
| +) ALTERNATE
| e Xa “ne
COMPRESSOR - CONTROL 7 DRAN 227 KOU MPT
END WIRE "CONN, INSIDE)
OPENING |
VAV / ALTERNATE
27 1 | |INTERLOCK POWER WIRE
ALTERNATE RETURN | | | ВЕКАХ DA OPENING 33 "NPT
xD A 2
1
ALTERNATE SUPPLY
1-5" xD
CONTROL WIRE eZ 13,
OPENING L"NPT STE Оо
-
Зуб Bupha ar gl phan bg e
{COOLING ONLY UNIT}
MAIN POWER — >>
0 WIRE CPENING 35 NPT
> ue
13. ps" :
3
№
73 ~~
E OUTDOOR A:RFLOW SUPPLY AIR
OPENING
| > INDOOR AIRFLOW RETURN AIR
— OPENING
> DIMENSIONS (ft-in.)
sopri 024 | oz | 034 | 044 054 | 06
A 1 10-10 113: 81/21 17-1 120- 6172 2411172 SA у
8 7-3-1/8
С | 4-11.
D 4-11 | 6-11. 9. 0 11-0. 112 0-1/2 133- 0-1/2
E | 010-1/4 { 0-10-1/4 | 0-10-5/16{ 0.10.5716 | 0-10-5/16 | 0-10.5/16
F | O 9-7/8 {0- 9-7/8 10- 9-7/8 | 1. 1-1/4 | 13 1-3
G _ ii — 10 9-3/1610- 9-1/8 | 0 9.1/8
= _ _ 1- 8-4/4 | 1-10-44/321 1-310-11/32
J 13-1/2" NPTi 4” NPT | 4" NPT |4” NPT (ea); 4” NPT (ea) | 4” NPT (ea)
K | 2-4 2- 4 230 ! 2-10 2-10 2-10
L ! 6 1.12: 90 11- 5 114-10-1/2 119 3-1/2 119- 3.172
M: =” — — 5- 81/2 | 7- 7-1/2 | 8. 4-1/3
N = — — 4- 7 510 | 5.10
» .
Certified dimension drawings available on request.
NOTES: | a. - В
i. Allow 12 frabove unit, 8 fron filter access panel endand 4 fton remaining sides of unit for
airflow and service clearance.
2 For smaller clearances, contact Carrier,
3 Refer to Roof Cur dimensions for details of roof openings
(172" CONDUIT) (HEATING/COËLING
lu
« 6 Virol UNITH2 ON
Toy 044,054 AND
- xo”
Pat AE NA ыы ir
i
MAIN POWER WIRE
OPENING CJ) (NEATING/
COOLING UNIT} (2 ON
23" pa ir” 0441056 AND 064)
ei". < 8
8 | ENTHALPY
> CONTROL
OPTIONAL
ECONOMIZER
\ 33-034 |
EXHAUST HO00sSl4-044 |
| | — 15-054,064 |
Benn A - PUT a Pa
a. — . Ss E 8 at 0 CONTROL
REF : 330. PERE SA WiRING
De E 8: Di ———— |
Te TT 1 A ee о tas A
da ED izo ||| RETURN re |
DUCT WORK (FIELD TE 30 AIR | : |
SUPPLICO) MUST BE——— 3 SS | | SUPPLY | FIELD
COP pay TO CLEAR VIEW 8-5 SN i a SUPPLY
UP - GAS LE
race] E | 6 |,
NÖCATE PER DIMENSIONS) 7) - E A
E ACH SIDE ON 028 AND 034 A NC u = 1 `
{1} EACH St NN FIELD PO
МОНО \ (2) EACH SIDE ON 044, 054 AND 064 g TT SER FOR ELEC HEAT UNITS
yr \ \ TYPICAL 4CORNERS % 3
o - , ea
mo TYPICAL 4 SIDES
GASKET... | -UNIT BASE
TT RAIL
E WOOD NAILER
(FACTORY SUPPLIED)
NAIL
RU
COUNTER FLASHING
(FIELD SUPPLIED}
ROOFING FELT ,
(FIELD SUPPLIED)
ROOF CURBS ASSEMBLY ~~
NOTE: >. RE
CURB MUST SE LEVEL SO THAT UNIT > & RIGO \ ROOFING MATERIAL
DRAINS FUNCTION PROPERLY TH TR eA LED: | (FIELD SUPPLIED)
SEE BASE UNIT INSTALLATION INSTRUCTIONS a ^ FIEL _ |
FOR LEVELING TOLERANCES VIEW AA CANT STRIP(FIELD SUPPLIED) | O
DIMENSIONS (ft-in.)
UNIT | A 8 iC iD} E : E ¡6 UNIT | A Be D EF | G
SODFQ24 :10- 0-1/4 : 4-11 — 1-7 : 0-6-1/4 1 0-5-1/8 | — SODFO44 :19-8-1/4 310 154 0-6 10-6-1/4 :0-9- 1/4: 0-7
SODFO28 !12-10-3/4 6-11 | — | — ¡06-1/4 :051/8 : — SODFOSA 241.374 а 64 в 0.6.1 и
SODFO34 116- 2-1/8 9. 0 (4-4 10.6 | 0-6-3/4 | 0-5:7/8 | — SODFOG4 1111-77 3-0: 0. 0- 4 0-6-3/4 07-117 32
bo 4
tr 3 15” - ; д”
16 L sv 106 ar 1 —
CE POWER -T 7 MOI
SUPPLY | BN [e : ‘
A "ай |. i
SYSTEM e | Po |
o SPSS 2 e -
HEAT = TIMER | N © | ag i Ш |
OFF 43 $ ко 2aV tt HE af -
FAN ; |
NE HT |
QUE 4 YN
| I dete Ld
: . | 2% - | | »
213 an ;
16
REMOTE CONTROL PANEL THERMOSTAT/TRANSMITTER :
{Control Box}
1182 8
[ Determine cooling and heating requirements at design
e
II
conditions.
Given
Required Cooling Capacity (TC) .. ....... 300,000 Btuh
Sensible Heat Capacity (SHC) ............ 236,000 Btuh
Required Heating Capacity ............... 240,000 Btuh
Condenser Entering Air Temperature .............. 95 F
Indoor Air Temperature ............. 80 F edb, 67 F ewb
Evaporator Air Quantity .................... 10 ,000 cfm
External Static Pressure ................... , ol 80 in wg
Electrical Characteristics (V-Ph-Hz) ............. 460-3-60
Select unit based on required cooling capacity
Enter Cooling Capacities table at condenser entering
temperature of 95 F Unit 50DF028 at 10,000 cfm and 67 F
ewb will provide a total capacity of 308 ,000 Btuh and a
SHC of 236,000 Btuh. Calculate SHC correction, if
required, using notes under cooling capacities tables
Ill Select heating capacity of unit to provide design condi-
IV
V
tion requirement.
In the Heating Capacities table, note that unit 50DF028 with
73 kw heaters will provide 249150 Btuh
Determine fan speed and power requirements at design
conditions.
Enter Fan Performance table at 10,000 cfm and 1 80 in wg
Note that the fan speed is 1210 rpm and the power required is
9.0 bhp. The optional 10 hp motor is required
Select unit that corresponds to power source available.
The Electrical Data table shows that a 460-3-60 unit is available.
COOLING CAPACITIES
Evap Air — _Cfm/BF
Temp (F) — 6000/.042 | 8000/.061 | 9000/.070
Cond Evap A Air — Ewb (F (F)
—. pa 72 67/62 72:67 62:72 67 | 62
TC 266 243 220 278 | 256 | 233 283 260 237
1
1
1
Hh
85 SHC. 132 | 165 | 197 : 147: 191 : 237
KW ¡21.3 20.1 190: 22.0: 20.8:19.6
TC | 250 | 228 | 206 : 263 ; 238 : 218
157 | 206 | 237
22.4) 21.1 20.0
268 | 243 | 222
95 SHCy 127 159 |191. 142: 184 | 218 | 153 198 222
KW _ 22.6,21.6 20.1: 23.4: 22.0: 20.8 237,225 21.1
TC | 243 221|201:255:232:212 | 260 236 | 216
00 SHC 124 157 189: 139 : 182 : 212 | 150 196 | 216
KW 232/222 207 240:228:214 2431231 217
TC 236 214 195‘ 247: 225. 206 | 251 2291210
05 SHC 122 | 154 | 186 : 137 : 179 : 206 147 | 192 210
‚| КМУ , 239 226 214 24.6: 23.4: 22.1 249 23.7/223
TC | 227 |207 188 238: 216: 198 241 | 220 202
10!sHC 119 151 183 135: 176: 198! 144 189 | 202
KW 248 232
— e e же нож
220 25 3:24 1:22 5
Bow owe -
Temp (F) |
Evap A Air — Cfm/BF
emp (E) 9000/.058 | 10,000/.066 | 11,000/ 074
Cond ~~, Evap Air —Ewb (F) _
LL 1. 72. 67. 62 72: 6762 72 67 62
TC 345,318 294 351! 322. 298 355 327 302
85 SHC 178 229| 278 185: 242 296 194 | 1253 302
kw 1295 278 262.300 282 254302 284 26.6
TC 330 303, 278. 335: 308‘ 283 339 312 287
95 | 5НС | 174 223; 272° 181! 236! 283 | 1 190 248 | 287
KW. 312129.3 27.7 31.4:295 282,317,301 285
TC ¡320 295) 271 325: 299: 275: 329 303 | 279
100, SHC 171 | 220 268.178: 233: 2751187 245 279
KW | 32 7 |304| 290: 33 1: 30.8: 29 2! 33 3 | 31 3|29 6
TC 310,286 263 315: 290. 267: 318; 294 270
105 SHC 168 | 216| 263 176‘ 229 267 183|242 270
KW | 34.0 317/299 344:321. 30.2 247 323,305
TC 300 (277 255.305: 281: 259 309 284 | 262
110 SHC¡ 165 213! 255 171 226: 259: 180 | 238 | 262
KW 353,331 310 355:334:312 357 336 317
Temp (F) — 10,000/.068 a ma 13,500/.088
Cond | Evap Air — Ewb (F)
{ TT Y ‚ . NE
Lo 72167 £2 72 67:62 72 67 1.62,
TC | 412 | 380 |349 424 391: 360 | 430 397 366
85 SHC 214 | 266 321 ‘ 226 ! 292 | 356 240 | 311 135
KW 320 307/1293 33.2:31.65:297|/335 318 299
TC 392 360332 401! 370: 342 | 408, 376 ; 347
95 [SHC 203 | 258 315 218.283. 342 | 231 | 308 | 347
KW 347 3341315 35.9: 33.8: 31.8 | 36 2 34 & 32 4
TC 383, 352 323 392 : 361 : 334 | 399 ; 367 | 339
100 SHC 200 |255 |311 214: 280: 334 | 227 | 300 | 339
KW | 35 9| 34 6 326 371: 35.0: 33 2 | 37 5 | 35 7 133 6
TC 373 |344 |316 384: 353 325 | 390 | 358 330
105 SHC 197 252 308 211: 278: 325 |222 297 | 330
KW 374/358 342 ` 38.1: 36 2: 34 6 | 38 7 | 36 8 | 34 В
TC , 354 326 299 363: 335: 308 370 340 312
110 SHC: 191 | 245 299 206: 271 : 308 | 215 291 | 312
_ ¡KW | 393 378/360 39.9: 38 3:36.6/405|3851369
| Evap Air — Cfm/BF |
Temp (F) | 14,000/.051
Air Ent | do
8
9
10
10
11
Evap / Air — - Cfm/BF
...16.000/.062 | 18,000/.070
Evap Air — Ewb (F)
Cond —
..... 72.67 | 62 72.67 62 7267 62
TC 538 499 457. 549 | 507. 468 : 558 515 476
5 |SHC | 281 | 357 , 436 ‘ 295 ! 383 ; 468 : 312 | 408 476
KW 143.7 41 8 | 39 5 45.1 :42.5: 39.8145 4 429 406
TC 506 de 427 516; 475 436 | 524 | 481 445
5 SHC | 269 345 | 419 : 285 : 369 : 436 301 | 394 445
KW 468 43.7 41.0/47.1 4454181475 450 427
TC | 491 | 450 411 499 : 460 : 420 | 506 466 1428
0 [SHC | 263 339 411 280 364; 420 | 295 | 390 | 428
KW 479,450 425 483:45.6:431 487 462 2 441
TC | 475 436 | 397 483 | 244 | 405 | 490 | 450 | 412
5 SHC 258 333 397 275 : 358: 405 : 29C 383 412
KW [492466436 49.8i471:4431506 ¡475 145 2
TC 458 419) 380 465 : 427 : 388 | 473 433 395
O SHC 252 |326 380 269 353: 388 283 377 395
— KW 508 147 9 | 45 2 513 48.5 46.0151 7 [49 0 |468.
Temp (+) 18, 000/ 058 | 20,000/.065 | 22, 000/.0 073 _
r -
Cond Co Evap Air — Ewb (F)
72 | 67 | 62 172 | 67 | 62 | 72 67 | 62
TC |686 | 639 | 596 | 696 648 | 604 704 | 654 | 612
85| SHC | 361 | 462 | 565 : 376 : 485 { 600 | 392 | 514 | 612
Кум | 563153 2 150 4 157 6! Рае 54 5 | 51 6
TC | 650 | 602 | 558 7659 610 | 566 666 | 616 | 572
95! SHC | 347 | 446 | 546 : 363! 472 | 566 | 380 | 499 | 572
KW |611|576 538; 161.5:57.8:53.7 |622|588 54 7
TC | 629 | 581 | 538 ; 637 | 589 | 545 | 644 | 597 | 552
100! SHC | 340 | 438 | 538 | | 354 | 465 545 | 371 | 493 | 552
— _|Kw |631|590 563637 598 56.6 |64 3 | 60 2 |56 9
TC | 608 | 563 | 518 : 618 : 570 | 525 | 622 | 576 | 532
105. SHC | 333 | 432 518 : 348 : 457 | 525 | 365 | 483 | 532
___ |KW | 510| 61 4 |581; — 164 6158 4 | — |621 |58 7
TC | 589 | 540 | 496 : 597 : 546 } 502 | 604 | 552 | 510
1101 SHC | 325 | 423 | 496 ¡344! 448 | 502 | 359 | 475 | 510
Kw | — |638|603; — :64.2:60.5| — |648|609
Evap Air — Cfm/BF
‘21,000 /
(070 | 24,000 / .081 | 26,400 / .090
72 |
67
E Air — Ewb (F)
2 :72
T67 |
62
72
67
62
TC
SHC
KW
796
413
619
731
521
58.8
669 : 807
620 : 432 :
559: 62.4 |
: 744 : 684
553: 658
59.4: 56.6
820
449
63
753
579
59.9
696
683
57 1
TC
SHC
KW
95
751
397
660
693
505
628
634 : 766 |
600 : 418 :
596: ‘66.8 |
703 | 649
i536 | 635
163.4
60.4
775
433
67.2
714
563
62.7
660
657
61.1
TC
SHC
KW
105
709
387
703
650
487
66.6
TC
SHC
KW
115
665
365
74 3
‘598 : 718 :
579 | 400
63 4 170.9
: 663 ! 612
: 521 | 609
167.4 |
64.3
726
416
714
609
471
705
562 :672
556 :384
670:74.9
617
502
71.11 68.1
576
576
678
399
75 4
671
546
67 8
624
526
716
BF
— Bypass Factor
Ewb — Entering Wet-Bulb
Kw
NO (ES:
— Compr Mtr Pwr Input
SHC — Sensible Heat Cap
(1000 Btuh)
TC
1 Direct interpolation is permissible Do not extrapolate
2 The following formulas may be used.
sensible capacity (Btuh)
1 09 x cfm
tido = ledb —
Uwb =
hiwb = hewb -
Where:
total capacity (Btuh)
4 5 xcfm
hewb= Enthalpy of air entering evaporator coil
624
624
65 8
591
591
7 9
— Total Cap (1000 Btuh) Gross
_ Wet-bulb temperature of corresponding to enthalpy of air leaving
evaporator coil (hyp)
3 SHC is based on 80 F edb temp of air entering evaporator coil Below 80F edb,
subtract (corr factor x cfm) from SHC
AED
Pd AA
Rs а
am: „= Ze
KR SE ECN Rc
Entering Air Dry-Bulb Temp (F)
78, 1 77 : 76 Г 75 1 under 75 7
BF 0 ых pres caen Mido
‹ so EA Es
nv Le “Correction Factor
.05 1.04 ‘ 207 ° 311 414 518 wv wm
10 98 | 196 | 294 | 392 | 491 use formula
.20 87 174 | 2.62 | 349 | 436
Interpolation is permissible
Correction Factor = 1.09 x (1
— BF) x (edb - 80)
> 4 Cooling capacities are gross and do not include deduction for indoor fan
motor heat
1182
10
OPTIONAL EQUIPMENT RESISTANCES (in. wg)
UNIT | | UNIT CFM/TON
MODEL | ] OPTION 300 400 | 500
i Bag Filter 14 25 38
| Economizer 03 05 08
SODF | Economizer with Exhaust | _ | .09 | 15 | 23
044 Electric Heaters 0 5:1 (Low) 06 09 13
(Heat Cool Ratio)O 75 1 (Med) 09 15 23
eb ____1.0.1 (High) | .14 | .25 | .35
Bag Filter 14 25 38
Economizer 03 04 08
50DF | Economizer with | Exhaust ~~ {11 15 | 24
054 Electric Heaters 0 5:1 (Low) 12 23 | 38
(Heat: Cool Ratio)O 75 1 (Med) 15 30 46
oo | _ 1 01 (High) i 22 39 61
Bag Filter 20 | 36 | 55
Economizer 04 07 11
Pr | Economizer with Exhaust 13 21 31
Electric Heaters 051 (Low) 18 35 54
(Heat Cool Ratio)O 75:1 (Med) 24 44 68
HEATING CAPACITIES
Госте — ee Le STAGE ..
(Nominal) | KW | 1% BTUH
208-230 30-37 50 1102,390-126,280
460 i 37 50 * 126,280
208-230 . 45-55 : 67 | 153,585- 187,715
460 55 67 : 187,715
208-230 : 75-91 : 60 :255,975-310,585
460 91 60 : 310,585 —
208-230 : 45-55 : 67 1153, 585-187,715
460 55 67 | 187,715
M 208-230 : 60-73 : 50 1204, 780-249, 150
e: 460 : 73 59 : 249,150
E 208-230 90-110 : 50 1307, 170- 375. 430
E 460 1.110 : 50 7 5.4
3 208- 230 : 45-55 ¡ 67 1153, 585- 187, 715
208-230 75-91 : 60 1255, 975-31 0,585
460 91 60 °: 310,685 —
208-230 ‘105-1281: 57 :358,365-436,865
4 128 57 © 436,865
208-230 ! 60-73 : 50 1204,780-249,150
460 73 1 50 : 249,150
208-230 190-110 : 50 1307,170-375,430
460 7: 110 50 1 375.430
208-230 135-165 56 1460, 755-563,145
— 460 > 165 56 | 563,145
i 208- 230 ¡ 75-91 : 66 255, 975-310,585
ATI 460: 9 60 310,585
pe я, 208- 230 120-146 50 1409, 560-498, 300
E 460 1. 146 : 50: 498, |
M208-230 17591: 66 1255,975-310,585 —
E 460 ; 81 : 60 : 310,585
208-230 1120- 146: DO 1408, 560-498, 300
460 ; 238,300
146 : 50
O
- 50DF028
INDOOR AIR FAN PULLEY DATA
a Aa e а
MOTOR FAN SINGLE-SPEED TWO-SPEED
FAN PULLEY PULLEY BELT BELT
RPM No. Grooves—Type—in. NO.— SIZE NO.—SIZE
— 925 | 2—3V—5.6 2—3V—10.6 2—3V—710 | 2—3V—710
991 2—3v—6.0 2—3V—10.6 2—3V—750 2—3v—750
1073 2—3V—6.5 2—3V—10.6 2-—3V—750 2—3V--750
1093 | 2—3V—50 i 2—3V— 8.0 2-—3V—670 2-3Vv-710 °°
1159 2—~3V~5.3 2—3V— 8.0 2—3V-—670 2—3V—710
1225 2—3V—5.6 2—3V— 8.0 2—3V—670 | 2—-3V—710
1300 2—3V—6 0 2—3V— 8.0 2—3v—710 i 2—3V—750
925 2~3V—5.6 2—3V—10.6 2--3v—750 2—3V—750
984 | 2—3V—4 5 | 2—3V— 8.0 2—3V—670 2—3V—670
1073 2—3V—6.5 2-—-3v—10.6 2—3V—750 2—3V—750.
1093 | 2—3V—5 O 2—3V— 80 2—3V—710 | 2—3V—710
1139 2—3V—6 9 | 2—3V—10.6 2—3V—750 | 2—3V—750
1159 3—3V-—5.3 | 3-3v— 80 3—3V—710 2—3V—710
1225 2—3V—5.6 3—3V— 8.0 3—3V--710" 3—3v—710
1300 | 2—3V—60 2—3V— 80 2—3V—710 i 2—3V—710
925 2--3V—5.6 : 2-3v--10.6 2—3V-——750 2—3vV—750
991 | 2—3V—6 O | 2—3V—10.6 2—3V—750 | 2—3V—750
1073 2—3V—6.5 | 2—3v—10.6 2-—3V—750 : 2—3v—750
1093 3—3V—5 0 | 3—3v— 80 3—3V—710 | 3—3V—670
1141 4—3V—4.5 | 4—3V— 6.9 4—3V—670 | 4—3V—670
1159 y 4—3V—5.3 Y 4—3v— 8.0 4—-3v—710 : 4—3v—710
1225 : 4—3V—5.5 4—3V— 8.0 4—3V—710 1 4-30
1300 | 3—3V—6.0 | 3—3V— 80 3—3V—710 | 3—3V—710 -
926 4—3V—5.6 4—3V—10.6 3—3V—750$ 3—3V—770
991 3—3v—6.0 | 3—3V—10.6 3—3V—750 | 3—3V—770
1073 4—3V—8.5 ; 4-—3V—10.6 3—3V—750t 3—3V—770
1093 | 4—3V—5.0 4—3v— 80 4—3V—710 4—3V—710
3159 1 5—3V—5.3 S—3V— 8.0 5—3vV—710 5—3v—710
1225 4—3V—5.6 ; 5—3V— 8.0 S—3v—710* 5—3V—710
1300 | 4—3V—6 0 | 4—3V— 80 4—3v—710 | 4—3V—710
925 | 4—3V—5 6 | 4—3V—10.6 4—3V—750 | 4—3V—750
991 | 4-3V—60 | 4—3v—10.6 4—3V—750 1 4-3V—770
1039 5—3V—4.75 | 5—3V— 8.0 5—3v—710 | 5—3V—710
1073 | 4—3V—6.5 4—3v—10.6 4—3v—750 1 4-3V—770
1093 i 5—3V—5 0 5—3V— 8.0 5—3V—710 | 5—3v—720
1159 5—3v—5.3 5—3V— 8.0 5—3vV—710 | 5—3v—720
1225 5--3V—5.6 5—3V— 8.0 5—3V—710 5-—3V—720
925 4—3V—5 6 4—3V—10 6 4—3V—750 4—3V—750
991 4—3V—6 0 4—3V—10 6 4—3V—750 4—3V—770
1039 5—3V—4 75 5—3v— 80 5—3V—710 5—3V—710
1073 4—3V—6 5 4—3V—10 6 4—3V—750 4—3V—770
1093 5—3V—5 0 5—3V— 80 5—3V—710 5—3V—720
1159 5—3V—5 3 5—3V— 8.0 5—3V—710 5—3V—720
1225 5—3v—5.6 5—3v— 8.0 5—3V—710 5—3v—720
1312 5—3v—6.0 5—3V— 8.0 5—3v—710 5—3V—720
1450 5—3v-—5.0 5—3V— 6.0 5—3V—670 —
‘Shaded values indicate standard or optional pulley combi-
nations available as shown in Physical Data table All
other combinations are field supplied
*Remove one belt.
tDrive requires 3 belts; 4 belts may be used if desired.
11
(cont)
FAN PERFORMANCE
EXTERNAL $ STATIC PRESSURE (in. wg)
CFM 0.20 0.40 ' 0 60 0.80 1 00 1.20 1 40 | 1. :50 | 1.80 y 2.00 | 2. 20 i
Rpm | Bhp Rpm | Bhp Rpm | Bhp Rpm Bhp Rpm | Bhp Rpm | Bhp Rpm Bhp Rpm | Bhp Rpm _ Bhp | Rpm | Bhp_| Rpm | Bhp
6000 | 699 | 172! 763 204. 820; 234, 872 | 2 64° 922 2 95 | 969 | 326 1012 356 1054 385 1094: 4161134: 428: 1173: 480
6500 746 212 807, 248: 862 281: 912 313. 95% 346 1005 37911048 413 1089: 445:1126: 477: 1186: sic, 1.202.,.5,44.:
7000 796 255 852 297 | 905, 334; 953 3 69 | 999 403 1042: 43% 1084: 475:1125: 512:1162: 547. 1198 53103 233: 8,15.
7500 843 313 897, 354 948, 3 94 995 | 432 1039, 469 1081: 506 1 1: 544/1160: 5.83: 1198. 623: 1238 8:80) 1208: 6.971
8000 892 374 943 417. 992 | 4 60 1038 502 :1080: 5,42 1121: 581:1159: 621 1197: 56231234; 704: 1270 Mo
8500 941. 442 990 489 1037’ 535 1081 : 579:1122: 6 23:1162: 665: :1199.: 70721235: 74912707 BB us
9000: 991| 51911037: 558 :1082: 6171125: 6 65:1165: 7.12 1203: 757 33 240; 803:1275. 846; + 5 :
9500 1041 6.04:1085: 656:1128 708:1169: 7591208: 809:1246: 858:7287: 905: | Doo: 3
0000 1091 6.99:1133; 753:1174 8.09:1214: 8.52: 1252: 2.15.7288: 9.67° о L 103 A Ra ER A
7500; 662: 1 78 731 225 | 791 | 271: 848: 321] 904 | 376; 956: 436! 1005 | 498/1054 569 1105 647 ti 53 ELS 818.
8000: 696! 209 763 260 820 307 877 | 3 60 928 415 980 4 76 1028 | 54011074 607 1120: 682.1162: 7.64:1213: 8,53:
8500 730 243 796 299; 85° 349: 905: 103) 955. 4 59 | 1004 520 1052 587 1096 655.1140. 7261183" 805:1227.,.8.9%
92000: 764: 281: 829; 341: 883 | 395 933 | 449: 983" 50¢ 1028 570 1076: 636 1120: 708: 1162: 7.80:1203: 8 55:1244‹ 9.37
9500 | 799: 322 862 387 915: 446: 963 E OS 10101 563'1057! 626:1100: 692:1144: 763:1186: 839: 1226: 9.35:1264 : 9.3:
0000 834. 368 895 437 948 501: 994 | 559 1040, 6 20 1085: 687:1127: 753:1169: 8.24 1210: 9.00: 11250: 981: 1287: 10.60
0506 870. 420 929 490 981: 5601027 | 620 1069 680 1113: 750:1155: 820:1194: 39071234: 70: 3273: 10580: 1 |
1000; 905° 470: 963. 550 1014 620 1059 69C 1100 750:1142: 8.20:1184; 900:1222.. 9.701260: 10.40: 1298 : (11208 LE
1500 941 530 997: 610 1047‘ 590 1092 7$60:11322: 830:1171: 290-1212 8.7 701125173030: 1286: 11.30; BE EOS
2000: 977: 6 00:1031; 680 1080: 7701125 8.40: 1165: 910:1202: 9,8031 240: 1060: 12793: 11540; Co
2500 1013. 6.701065. 7.60 1414 840 1157 9.30: 1197! 10.00 11234: 10.70 :1270: 11 507 E + _ LEE LE mined
9000 690 286 755 340: 812. 391, 865 442 916. 4 94 ‘ od 542 1006. 594; 11052! 648 1064. 702 1133. 787: 1173 818
9500| 720: 329 784 388 | 839 442 891 495. 940 | 549! 985: 603 1026; 654 1971 710 1114. 787:1153. 824:1190: 881:
0000 751. 376 813: 440. 867 497 917 | 553 964 609 1010 667 1051 | 722 108%: 777:1133. 836:1174 897. ABIL 9560:
0500 782 428 842 496 895! 557‘ 943 616, 018 675 1034 735 1075/ 796 1114: 8.81 :1152- 910:1193: 9731232 :10.37:
11000: 814. 480. 871, 560 | 923, 620 971 | 680.1016) 7501106591 810 1100: 870:1139. 930:1174; 990 1212: 10.80: 1250::11.20:
11500 845: 550 901 620. 952 E 999: 760 1042 820 1085. 880:1125: 950:1164 1020:1200 10.80 :1233: 11340: 3270: 112.30
12000. 877 610! 931! 7 00 | 981 770 1027 840 1069” 9.00:1110: 97011509 1040:1188:11 10:1225:11.80.: 1258: 12:40! 1291 13.20;
12500 909 680 962: 770 1010 852/1055! 920 1097: 990:1136 1060 1176/11 3071213: :12.00:3249: 142.20: 8: 113.50: EII -
13000; 941 760. 992 850 1039 940 3083.1010 1125:10920: 1162: 11.60 1201 1123011238113 10112735 11380: 5
13500 973. 850 1023 | 940 1069 1030 1112:11.10 1153'1190:1191 12:60. 1227 13.20: 1264 : 14.10! 1298: 1480: Ro Do FE
1400011006 | 9401054 1040 1099 11 3C. 1141.12 10.1181: 112801218 :13 70. 1254 114.50: 1290: 1530: o о E E
145001038 1030 1085 1120:1129:1230:1170:1320 1209-14 10:1246 114.80 1282 15.70° + io Lf EF d
1500011071 11.30 1116 1240 1159 13.50 1200 14.40 112381530 12751610 Ц ES E dE
12000: 734 4 80 | я | 540 | 838 6 20! 889 | 700: 937; 780; 987 | 8701034 | 350 1081 1050 1125:1140: 1169: 1250, я Tavo,
13000: 791 6 831: 660: 883: 740 930 8 20 | 977 | 910 1022, 1000 1068 1100 1110:1190 1165:12.90:1195 13 9071 1237 15.10
14000: 848: 740 | 880 790 | 928 8 80 | 974 970 1017: ¡1060 10601 16011021269 1145:1360:1184'1450:1227 1580:1266: 16.70
15000 907 910 932 950 974 1040:1019 1140 10601240: 3101:1340 :1440 : :14 40 1179:1940; 1220. 16.50.1257 :17.50:1295 : 18.80;
16000! 966 :11 00 | 985 1140 11022 {12 20° 1064 1330 1104:1430:1142:1530:1181 16.40 1217 17.50 :1254 318.60: 1292: 19701 à В
17000 1026 1330 1040 1350 1071 '14 30. 1110 15 30 :1150:16 50 : 1186.32.80. 1221 :18.60 ; 1258; 19.80: 1292 120807. NOE EN
180001086 :1570:1097'15 90 :1122 1660:1157: 17 60:1195:18.80:1231 “20.00 : 1265 321 40: 1299: 122 30: ES )
19000 1147 1850 11541860 1175.19 201205 20.2011241:21.40; 4276 | 22.70; : 3 a PRE >
20000. 1298: :21.70 1212: 21.70: 11229: 122.20: 1205: 23.07: 7238: ‘24.20: Е ВИ o E Be 3
15000, 704 5 08 | 772 | 610 | 829 | 6 94 | 882 | 7 80 ; 933: 8711 983, 968 1091 1067, 1077 1175 1122: 1282. 3166. 1387: 1206 :14 94.
16000 741 | 600; 807 713 863 808 913: 393 963 99: 1010 1089 1057 11 93 1101 1299 1144 1413:1187:1529:1228 :1641.
17000: 779: a 843 826 898 932 Е 993 1121 1089/1225 11083 1331 1127 1442 1169 :1554' 1209 16 75:1249 1799
18000 817 817; 878. 951 533 1068 980 11 70, 1024 [12 66 106911375 1112 1484 11531597: 11194:1716:1234 118 3411272 :19 61
19000 | 855 944: 91511087] 966 1216 e 11058 1430 1100 1536 31342 :18 54 :118* :17 681221 :18 89: 1260 :20 14 :1297 21 39:
20000: 894 | 1084 | 951,1237 1003 1376/1050 1500 1092 1611 1132:1717:1172 :18 35 :1211 :19 58: 1248 :20.79 : 1286 : 122 07:14 22312339:
21000 933112 38 | 9881400 1038 1550 1084 16.85 :1126:1807 1165:1519:1203 :20 32 :1241 :21 62: 1278. 2290:1314 24.17: 134912552
22000 972 1406 1025 1577 1074 17237 1119 ‘18 84 ‘1161 :20 17 1199:21 38 :1235 :22 54 1272: 1208 :25.16:1343 2649: 1377 227.82)
23000 1011 15 90 1062 ‘17 69 1110 1940 :1155 :20 98 :1196 22.42 1234 : 23 74 :1269 :24 97 : 1304 :26.19:1338: 2754: 1373: 128.98 31407; 130.36 °
24000 1051 1790:1100:1878 1147 21 58 :1190 :23 27 :1231 :24 83 1268: 126,25 :1304 127.58 ; 143371 28 85 ; 1370 : 301371 203 :31,59 ; 437. 35.09:
25000 1080 2005 11138 2203 1183 23 92 1226 125 72: 1266: 2739; 11303 28.93 1338 12036: 11371 131.73 11403 33.03: 1434 13440 | A Е
Alternate fan motor or drive is required
: Field supplied drive required
Bhp — Brake horsepower
Rpm — Revolutions per minute
NOTES:
1 Values in italics indicate that motor larger than optional fan motoris required
2 Fan performance has deductions for unit casing losses, wet coil and clean
standard filters
3 Fan motor bhp is based on minimum voltages and 80 F air across motor
EXTERNAL STATIC PRESSURE (in. wg)
| СРМ | 078 | 1,00 | 1.25 150 1.75 2 00 2 25 2.50 2.75 3.00 3.25
Rpm | Bhp _ Rpm | Bhp |Rpm . Bhp Rpm ‘Bhp Rpm Bhp |Rpm Bhp Rpm | Bhp | Rpm | Bhp | Rpm Bhp Rom | Bhp. Rpm. Bhp
15000 868 | 756 934 872 996 | 994 1054 11 20 1110 1255 1165 1385 1216 15 21 1266 1661 1314 1806 1361 1954 1405 21 04
16000 : 901 | 871; 963. 990 1022 11 16: 1079 1246 1134/1384 1186, 15 29 1237 16671286 1811 13331959 1378 21 12/1423 22 68
117000! 935 1002, 993,11 20 1050 1251 1106 1388 1158 1526 1209 16 7511258 (18 29 1307 119 75 1353: 2127 1397 22 83 1441 2444
118000 969 1145 1024 1265 1080 1401 ‚1133 15 41 (1185 1688 1234 18 34 1282 19 94 1329 21 57 1375 (23 12 1419 24 71 »
119000 {1004 1302 1958 1679119 115641162 1710/1212 1860 1260 20161307 21 71 1352 2340 1396: 2513 1440 26 78
120000 1038 1471 :1092:1611 114? 19471122 1896 1240 2049 1287 2210 133212373 1376 2537'1420 2715 | ;
121000 1074 1653 1126 1807 1175 1947 1222 20 94 1269 22 56 1314 24 19 1359 25 89 1402 27 60 1444 :29 32 :
2000 1109 1850 1161 2017 1208 21 6711253 23131298 24 78 1343 26.43 1396 28 20 1429:29 98, ¡ |
123000 1144 2062 1196,22 42. 1243 2405 1287 2558 1329 2718 1373.28.95: 1415 :3071 | f
122000 1180 122 89 123112483 1277 26.59 1320 2822 1361:29.81 1403 31 5611444 | 133.42 | | |
125000, 1217 25 32 2 1266 |27 40 1312 129.30: 1355 31.04 : 1395 : 32.70: 1434: 134 40 ; : ; | |
"Alternate fan motor and drive required
12
e
MODEL ¡VOLTAGE “COMPR
NOMINAL RANGE NO. 1
H/HZ -
CET min | Max | RLA | LRA
|
|
|
50DF024 187 254 80 | 345
208-230/3/60 ;
50DF024 ¡414 508 370 173
460/3/60
50DF024 518 632 300! 120
575/3/60
50DF028 1187 | 254: 635 266
208-230/3/60
50DFO28 1414 | 508 | 275! 120
460/3/60 |
dd 1 - |
| |
50DF028 |518 | 660 220 96 |
575/3/60 |
cn - tt — |
COMPR — Compressor
FLA — Full Load Amps
Hp — Nominal Horsepower
Kw — Kilowatts
LRA — Locked Rotor Amps
COMPR
NO. 2
RLA | LRA |
43 191
86
MCA
MOCP
RLA
*Fuse only
i
OUTDOOR
~J
“zi NS
a a
o
FAN
MOTORS
Qty FLA '
2 76
{ea)
2 33
(ea)
2 27
(eá)
2 76
(ea)
2 33
i (ea)
2 27
(ea)
INDOOR
FAN |
MOTOR
Hp |
75
75
75
75
75
~J
~J
EE Aa
сл сл coool QU O1 сл сл
~J
on
“о она о
a a © сл сл
75:
'
LEGEND
Minimum Circuit Ampacity
— Maximum Overcurrent Protection
Rated Load Amps
110
110
|110
110
110
140
140
140
FLA
24 2
24 2
24 2
24 2
24 2
24 2
24 2
24 2
24 2
24 2
24 2
24 2
24 2
24 2
24 2
24 2
Pa
140
140
140
140
90
90
110
110
13
EXHAUST |
EAN
MOTOR
Hp | FLA
3 11
31 11
3 01
3 | 11
3 11
3 | 11
31 11
3 11
3 as |
1.
HEATERS Circuit
| No. 1
Kw FLA | mca | MOCP
— — 138 200
— — 1 149 225
— — 138 200
30- 366 | 83- 92 | 138-146 | 200-200
45- 54 9 | 125-138 187-203 200-225
75- 915 | 208-230 ‚ 138-146 | 200-200
— — 149 225
30- 366 83- 92 149-149 | 225-225
45- 549 | 125-138 | 187-203 | 225-225
75- 915 208-230 | 149-149 | 225-225
30- 366 83- 92 128-146 200-200
45- 54 9 | 125-138 | 187-203 , 200-225
75- 915 208-230 138-146 200-200
30- 3656 | 83- 92 149-149 225-225
45- 549 125-138 187-203 | 225-225
75- 915 208-230 | 149-149 225-225
— — 60 90
— — 65 100
— — 63 100
36 6 46 67 90
54 9 69 96 90
91 115 154 125
— — 68 100
36 6 46 67 100
54 9 69 196 100
91 115 j 154 125
36 6 46 72 100
54 9 69 100 110
91 115 ! 158 150
36 6 46 72 100
54 9 69 100 110
91 115 158 150
— — 49 70
— — 53 80
— — 52 80
— — 56 80
“oi — 160 225
— AN 225
167 225
| 45- 549 125-138 187-203 | 200-225:
60- 732 ; 166-184 | 238-261 | 250-250 |
90-1098 | 249-276 187-203 225-225
— ; — : 178 225
45- 549 125-138! 187-203 225-225
60- 732 166-184 238-261 | 250-250
90-109 8 | 249-276 | 187-203 225-225
45- 549 125-138 195-211 ; 225-250
60- 732 166-184 246-269 250-300
90-1098 249-276 | 195-211 225-250
45- 54 9 | 125-138 195-211 225-250
60- 732 | 166-184 | 246-269 | 250-300
90-109 8 | 249-276 | 195-211 | 225-250
— 1 — 71 90
— — 76 100
— = 74 100
55 69 100 110
73.2 92 129 125
109 8 138 187 | 175
— — 79 : 100
55 69 100 | 110
732 92 129 © 125
109 8 138 187 | 175
55 69 104 | 126
732 92 133 125
1098 138 199 | 175
55 69 104 . 125
732 92 133 | 125
109 8 138 199 ‘ 175
— — 57 : 70
— — 61 | 80
— — 59 | 80
— — 63 | 80
NOTES:
POWER SUPPLY"
Circuit
156-173
156-173
166-173
166-173
156-173
156-173
156-173
156-173
1 All outdoor fan motors are single-phase motors
2 All heaters are 3-phase assemblies
3 Circuit no 2 is provided as indicated; total unit MCA equals
the sum of circuit no 1 MCA plus circuit no 2 MCA
175-200
175-200
175-200
175-200
175-200
175-200
175-200
175-200
— Locked Rotor Amps
14
_ POWER SUPPLY
Circuit
—. No.2
MCA
NOOO
156-173
208-230
156-173
208-230
156-173
208-230
156-173
208-230
208-230
259-288
208-230
259-288
208-230
259-288
208-230
259-288
MOCP
175-200
225-250
175-200
225-250
175-200
225-250
175-200
225-250
a a re
275-250
300-300
225-250
300-300
225-250
300-300
225-250
300-300
PEI
RANGE NO. 2 Circuit
MOTORS | MOTOR | MOTOR No. 1
VOLTS/PH/HZ lin | Max RLA Qty | FLA | Hp | FLA | Hp Kw FLA MCA | MOCP
10 1308 | — — — 197 250
10 1308 | 3 — — 208 250
15 {460 | — — — 212 250
10 1308 | — 45- 54.9 |125-138 | 197-211 | 250-250
10 1308 | — 75- 915 | 208-230 | 197-197 | 250-250
10 {308 | — 105-128 1 1291-322 197-211 | 250-250
15 460 3 — — 223 250
10 308 3 45- 54 9 125-138 208-211 | 250-250
187 | 254 635 3 176 1491308] 3 75- 915 208-230 208-208 | 250-250
208-230/3/60 (ea) | 10 1308 3 105-128 1 1291-322 |208-211 | 250-250
15 [460 | — 45- 54 9 125-138 214-230 | 300-300
15 1460! — 75- 915 208-230 212-212 | 250-250
15 1460 — 105-128 1 291-322 | 214-230 | 300-300
15 1460 3 45- 549 125-138 | 223-230 | 300-300
15 1460 3 75- 915 208-230 223-223 250-250
15 1460 3 105-128 1 1291-322 |223-230 | 300-300
101140 — — — 86 110
10 | 140 | 3 — — 91 110
15 1210 — — — 93 110
10 {140 | — 54 9 69 104 125
10 |140 | — 915 115 162 150
10 140! — 1281 161 219 200
15 | 200 | 3 — — 98 125
10 |140 | 3 54 9 69 104 125
414 | 508 275 3 oo 10 | 140 | 3 91 5 115 162 150
10 140: 3 128 1 161 219 200
15 |210 | — 54 9 69 113 150
15 | 210 | — 91 5 115 170 175
15 |210 | — 128 1 161 228 225
15 1210 3 54 9 69 113 150
15 121013 915 115 170 175
15 |210 | 3 128 1 161 228 225
10 1110] — — — 69 90
10 | 110 | 3 — — 73 90
518 | 660 220 3 27 | — — e 90
lea) | | _ | 3 — — 79 100
15 1460 | — — — 249 300
15 460 3 — — 271 350
20 |535 | — — — 263 300
15 |460 | — 60- 732 166-184 | 265-288 350-350
15 460 | — 90-109 8 249-276 249-249 | 300
15 460 | — 135-164 7 | 374-414 | 265-288 | 350-350
20 | 535 | 3 — — 285 350
15 |460 | 3 60- 732 | 166-184 | 271-288 | 350-350
187 | 254 80 3 | 78 15460 3 90-109 8 249-276 | 271-271 | 350-350
208-230/3/60 (es) | 15 460. 3 135-164 7 {374-414 | 271-288 | 350-350
20 | 535 | — 60- 732 | 166-184 | 283-305 | 350-350
20 | 535 | — 90-109 8 | 249-276 | 263-263 | 300-300
20 |535 | — 135-164 7 | 374-414 | 283-305 | 350-350
20 | 535 | 3 60- 732 166-184 285-305 | 350-350
20 |535 | 3 90-109 8 | 249-276 | 285-305 | 350-350
20 | 535 | 3 135-164 7 | 374-414 | 285-305 | 350-350
15 |210 | = — — 115 150
15 | 210 | 3 — — 124 150
20 | 270 | — — — 121 150
15,210 — 732 92 142 175
15 | 210 | — 109 8 138 199 200
15 | 210 | — 164 7 207 142 175
20 | 270 | 3 — — 130 150
15 210! 3 732 92 142 175
414 | 508 370 3 oe 15121013 109 8 138 199 200
15 | 210 | 3 164 7 207 142 175
20 | 270 | — 73 2 92 149 200
20 { 270 | — 109 8 138 207 225
20 | 270 | — 164 7 207 149 200
20 | 270 | 3 732 92 149 200
20 | 270 | 3 109 8 138 207 225
20 | 270 | 3 164 7 207 149 200
16 | 154 | — — — 93 110
518| 632 300 3 | 27 20 354 3 — — ol 128
(ea) | 55120 | 3 — — 106 125
LEGEND
COMPR — Compressor MCA — Minimum Circuit Ampacity NOTES:
— Full Load Amps MOCP — Maximum Overcurrent Protection 1 All outdoor fan motors are single-phase motors
— Nominal Horsepower RLA — Rated Load Amps 2 All heaters are 3-phase assemblies
— Kilowatts *Fuse only
3 Circuit no 2 is provided as indicated; total unit MCA equals
the sum of circuit no 1 MCA plus circuit no 2 MCA
e
POWER SUPPLY*
MODEL ¡VOLTAGE | COMPR COMPR OUTDOOR INDOOR EXHAUST sens LP
RANGE NO 1 NO 2 F N HEA Circuit Circuit
NOMINAL MOTORS | MOTOR | MOTOR No. 1 No. 2
VOLTS/PH/HZ [vin | Max |RLA | LRA | RLA | LRA | Oty | FLA | Hp | FLA | Hp TFLA | Kw FLA | MCA | MOCP | MCA | MOCP
20 600| — — — 312 400 — —
20 1600|/ 3 | 11 — — 334 450 — —
25 |750 | — | — — — 327 400 | — —
201600|— | — | 75- 915] 208-230 | 335-363 | 400-450; — —
20 | 600 | — | — 1120-1466 332-368 | 312-312 | 400-400! 260-288 | 300-300
20 | 600 | — | — 1165-201 3| 457-506 | 335-363 | 400-400 | 312-345 | 350-400
25 | 750 | 3 | 11 — — 349 450 — —
20 600 3 | 11 | 75- 91.5] 208-230 | 335-363 | 450-450 | — —
SoDFo54 187 | 254 |117 | 506 | 785 | 345 lea) 20 | 600 | 3 | 11 |120-146 6 | 332-368 | 334-334 | 450-450 | 260-288 | 300-300
208-230/3 20 600! 3 | 11 |165-201 3| 457-506 | 335-363 | 450-450 | 312-345 | 350-400
25 1750 — | — | 75- 915] 208-230 | 354-382 | 500-5001 — —
25 | 750 — | — 1120-146 6] 332-368 | 327-327 | 400-400 | 260-288 | 300-300
25 | 750 | — | — |1165-201 31 457-506 | 354-382 | 500-500 | 312-3491 350-400
25 1750 3 | 11 | 75- 91.5] 208-230 | 354-382 | 500-500 | — —
251750| 3 | 11 [120-146 6| 332-368 | 349-349 | 450-450 | 260-288 | 300-300
oo ] _ ne 25 | 750 | 3 | 11 | 165-201 3| 457-506 | 354-382 | 500-500 | 312-345 | 350-400
201270 — | — — — 141 175 — —
20 270 3 48 — — 151 200 — —
251340 — | — — — 148 200 — —
20 | 270 | — | — 91.5 115 178 200 — —
20 270 — | — 146 6 184 264 250 — —
20 270 — | — 201 3 253 149 200 202 225
25 | 340 | 3 | 48 — — 158 200 — —
20 | 270! 3 | a 915 1 17 2 — —
50DFO54 [414 | 508 | 530 | 253 | 360 173 33 2 e 15 166 184 rag 290 — —
460/3/60 (ea) | 20 | 270 | 3 lag 201 3 253 151 200 202 225
251340] — | — 91.5 115 187 250 — —
251340 — | — 146.6 184 273 300 — —
251340 — | — 201 3 253 158 200 202 225
25 | 340 3 | 48 915 115 187 250 — —
25 | 34.0 3 | 48 146 6 184 273 300 — —
_ | JUL | 25 | 34.0 | 3 | 48 201 3 253 158 200 | 202 225
201220] — | — — — 113 150 — —
sODFOS4 |518 | 632 |425 | 176 | 286 | 120 27 > 229 3 |39 — — 18 10 — —
| 5675/3760 | (es) |25|270| 3 |39| — — | 126 150 | — | —
| 25 | 75 0 — | — — — 370 400 — —
25 750 110 — — 392 450 — —
30 | 880 | — | — — — 383 450 — —
25 |750 | — | — | 75- 915} 208-230 | 370-382 | 500-600] — —
25 750| — | — |1120-146.6| 332-368 | 370-370 | 400-400 | 260-288 | 300-300
30 | 880 | 3 |110 — — 405 450 — —
SoDFo64 187 | 254 |119 | 506 | 119 | 506 lea) 26 1750] 3 |110| 75- 9151 208-230 | 392-392 | 500-5001 — —
208-230 25 | 750 | 3 |110] 120-146 6! 332-368 | 392-392 | 450-450 | 260-288! 300-300
30880] — | — | 75- 915| 208-230 | 383-398 | 500-500] — —
30 | 88.0 | — 120-146 6| 332-368 | 383-383 | 450-450 | 260-2881 300-300
30 | 880! 3 :110| 75- 91 5| 208-230 | 405-405 | 500-500, — —
_ N 30 | 88 0 | 3 |110! 120-146 6| 332-368 | 405-405 | 450-450 | 260-288 | 300-300
| 25 1340 — | = — | = 166 200 — —
25 | 340 48 — — 175 200 — —
30 | 400 | — | — — — 172 200 — —
251340 — | — 915 115 187 250 — —
25/1340 — | — 146 6 184 273 300 — —
30 | 40.0 — — 181 2 — —
50DF064 ¡414 | 508 | 53 | 220 | 53 | 220 30 | | 340 3 8 от Ts 19 50 — —
460/3/60 (ea) | 25 | 340| 3 | 48 | 1466 184 273 300 — —
30 {| 400 — | — 915 115 194 250 — —
301400] — | — 146 6 184 280 300 — —
30 | 400 | 3 | 48 91.5 115 194 250 — —
30 | 400! 3 | 48 146 6 184 280 300 — —
LEGEND
COMPR — Compressor MCA — Minimum Circuit Ampacity NOTES:
FLA — Full Load Amps MOCP — Maximum Overcurrent Protection 1 All outdoor fan motors are single-phase motors
Hp — Nominal Horsepower RLA — Rated Load Amps 2 All heaters are 3-phase assemblies
Kw — Kilowatts *Fuse only 3 Circuit no. 2 is provided as indicated; total unit MCA equals
LRA — Locked Rotor Amps
15
the sum of circuit no 1 MCA plus circuit no 2 MCA.
CONTROL BOX 1 ©
QUTDOOR a Pn eo E - с Е T8 я LE В о 4 x 4 e : у . ce - ; & y { o - =
MAKEUP AIR — Soe, AS Be. € Бок cet
A CIELO POWER
Re SUPPLY FOR
E = COOLING ONLY
EXHAUST ae i
AIR
CONTROL WIRE (24-V)
№ ; x ` \ ~. ВЕ |. до a me * y : | a _ : ‘ 7 й 7 | > FROM THERMOSTAT
— À BAN E. | EZ и 7 TO CONTROL BOX |
rome > Na CE eet ROOF CURB 0
FIELD POWER SUPPLY
FOR HEATING/COOLING UNITS
ut
PIC
aaa ne
a
"aaa
A
Г
La
uen
a ata
axe ata
an анию.
| a
Ae A AA E Ea UN
a
E
Nara 02 ES
EC A
ue ate me ty a Ee
2.
AC A ASA a,
Controls
Operating sequence with economizer — (With- Compressor(s), working simultaneously with econo-
out energy management Option/Accessory) using mizer, will be staged on to meet cooling load.
thermostat with subbase. As conditioned space temperature approaches thermo-
stat’s cooling set point, stages cycle off, last stage first.
Cooling After all stages of mechanical cooling are off, economizer
System switch set at AUTO. or COOL, indoor air fan runs modulates to minimum position. a
continually. Thermostat set at desired setting. During the cooling cycle, a discharge air sensor senses
discharge air temperature. If discharge air temperature
drops below 62F, economizer starts to modulate toward
the minimum position. At 50F, economizer will be at the @ |
When thermostat calls for cooling and outdoor air
enthalpy is below setting of enthalpy controller, economizer
modulates open. (If outdoor air enthalpy is above enthalpy
) | . — i” minimum position.
set point, economizer remains at the minimum position.)
Economizer acts as first stage of cooling, providing “free Heating
cooling” with outside air. If outside air alone cannot satisfy System switch set at HEAT and AUTO., thermostat set
the cooling requirements of the conditioned space, econo- at desired setting. When thermostat calls for heating, one or
mizer cooling is integrated with mechanical cooling. 2 stages of heat energize to satisfy the heating demand.
16
©
0
As space temperature approaches the heating tempera-
ture set point, heating stages cycle off.
During heating, economizer is limited to the minimum
position to provide minimum outdoor air for ventilation
requirements.
Operating sequence with economizer and energy
management Option/Accessory (Using electronic
thermostat or transmitter)
Clock in remote control box switches controls to DAY
(OCCUPIED) mode. Indoor air fan runs continually while
in DAY (OCCUPIED) mode.
If return air temperature is below the adjustable setting of
the morning warm-up thermostat, economizer remains
closed.
When return air temperature goes above the setting of
morning warm-up thermostat, economizer goes to adjust-
able minimum position.
When thermostat calls for cooling and outdoor air
enthalpy is below setting of enthalpy controller, economizer
modulates open. (If outdoor air enthalpy is above enthalpy
set point, economizer remains at minimum position.) The
economizer acts as first stage of cooling, providing “free
cooling” with outside air. If outside air alone cannot satisfy
cooling requirements of conditioned space, economizer
cooling is integrated with mechanical cooling.
Compressor(s), working simultaneously with econo-
mizer, will be staged on to meet cooling load.
As conditioned space temperature approaches the
thermostat’s cooling set point, stages cycle off, last stage
first. After all stages of mechanical cooling are off, econo-
mizer modulates to minimum position.
During cooling cycle, a discharge air sensor senses dis-
charge air temperature. If discharge air temperature drops
below 62 F, economizer starts to modulate toward minimum
position. At 50F, economizer wil be at minimum position.
At end of the DAY (OCCUPIED) mode on the clock, unit
controls enter NIGHT (UNOCCUPIED) mode. Econo-
mizer closes. Indoor air fan runs only on a call for heating
or cooling. The temperature controls go into a HEATING
SETBACK, COOLING SETUP or COOLING SHUT-
DOWN mode.
The HEATING SETBACK is field selectable at the unit
for 5, 8, 12 or 15F below set point on the room thermostat.
The COOLING SETUP is field selectable at unit for 5, 8,
or 12F above the set point on the room thermostat.
During the UNOCCUPIED mode, unit continues to use
economizer cooling first and then integrates economizer
cooling with mechanical cooling to meet cooling
requirements.
A 5-hour manual bypass timer is located in the remote
control box to provide for times when air conditioning is
needed during normally unoccupied hours.
> Two-speed indoor fan option
The 2-speed indoor fan staging sequence is based upon
room demand. As the conditioned space requires cooling,
this cooling demand is transmitted from the room thermo-
stat to the logic panel. Up to 4 stages of cooling can be
sequenced on to meet the demand from the conditioned
space.
As shown in the 2-speed indoor fan staging tables, the
high fan speed is used only if and when needed.
17
When outdoor air enthalpy permits economizer opera-
tion, the indoor fan runs at high speed only when necessary
to take maximum advantage of outside air to provide cool-
ing. Low speed is used when modulating economizer can
handle the cooling load.
When outdoor air enthalpy does not permit economizer
operation, the economizer dampers remain at minimum
position and the indoor fan motor runs at high speed only
when cooling is at its highest demand.
During HEATING mode, the fans operate at low speed
for ventilation only, and at high speed at all times during
active heating.
TWO-SPEED INDOOR AIR FAN STAGING
ECONOMIZER COOLING (Enthalpy Permitting)
OPERATING | FAN | ECONOMIZER! compresson |
CONDITION | SPEED, POSITION | OPERATION
No Call tor Cooling | Min
(Vent Air) Low Position Off
| — Modulating
Step 1 | Low Between Off
(Call for Minimum Cooling} | Min and Full
| | | Open
Step 2 ;
(Economizer Cooling) High Full Open | Off
Step 3 | |
(integrated High Full Open Compr 1
Econ /Mech Cooling) |
Step 4 | a
(Integrated i High Full Open | Compr 1 and 2
Econ /Mech Cooling) | |
MECHANICAL COOLING
(Enthalpy Not Permitting Economizer Cooling)
OPERATING ran Ea ¡COMPRESSOR
CONDITION ; SPEED: POSITION OPERATION |
Маноло АН] © | Low Min Position ï off
Step to x Low Min Position | Off
Step 2 - ` Low | Min Position | ) Compr 1
Step 3 Л Low _ Min Position Compr 1 and 2
Step 4 . High | Min Position | oor 1 and 2
Electrical protection devices
Compressor circuit breakers, calibrated for specific
applications, are current sensitive and temperature com-
pensated to shut off compressor if current draw is excessive.
Must be manually reset.
Inherent compressor thermal protection with auto-
matic reset de-energizes control circuit if extreme motor
temperature should occur due to excessive suction gas
temperature or motor overloading.
Low-pressure switch automatically shuts off compressor
if refrigerant pressure drops below setting for loss-of-charge
protection.
Fusible plugs, located in refrigerant system, protect
against excessive pressures or temperatures in case of fire
or other abnormal high-temperature condition.
Inherent outdoor fan motor protection with auto-
- a . . Y”
matic reset — Power circuit opens if motor temperature
becomes excessive.
Indoor fan motor circuit breakers — These manually
reset circuit breakers protect against fan motor overload.
Limit switches, heat limiters and overcurrent circuit
breakers provide thermal and overcurrent protection for
electric resistance heaters.
HEAT | , HR
MEAT 2 MED ELECTRIC HEAT OPTION LJ |
Ho — =m = {HR — !
« ` IFR
<< HT | << E x IFR3
COOL 4 р
O ива
COOL. |
cool 2 |
“O Fo cR2—
3
COOL EE (O) IFR3
per} | TB4
SEE NIGHT SET-BACK A
OPTION LABEL TBa mas] TA
PER IFR3 | ©) () TRAN
10 НО Ll Lx
r= — | В buz LFR
Pod Le
| a > FRI s | ECON OPTION”
Lo MT POWER EXHAUST OPTION
K 8 —
| | | > | (2) Ш
| | | | = ————]— SS 7]
| rT Gr 3) TN USED WITH FAN SWITCHING SUBBASE TB4
,, | | | | a a
A
|
к | TT 2 <> USED WITH ENERGY MANAGEMENT KIT
| Torr ©
| | | | {1 T
LA ne
| | |
990000000
| THERMOSTAT
| ECON OPTION
| @ |
| |
7 |
w (ро РМ
| {1 —O HO D PER | (a+) TMI
® —®
В {8}
15 V
R
24V
TB
(т) DISCHARGE AIR
a TEMP SENSOR
LEGEND
CCSV — Capacity Control Solenoid Valve OFM — Outdoor Fan Motor O Terminal (Circuit Board, Field
CR — Control Relay PER — Power Exhaust Relay or Accessory Connected)
DM — Damper Motor Pi — Plug Factorv Wirin
DMAS — Damper Motor Auxiliary Switch Sec — Secondary ory 9
Econ — Economizer TB — Terminal Block Circuit Board Run
EMC — Exhaust Motor Contactor TM — Timer Motor — == Option Wiri
ENTH — Enthalpy Control Tran — Transformer ption vviring
FPT — Freezeup Protection Thermostat — —. Field Wiring
Fu — Fuse [J Terminal Block Sol
Hr — Heater Relay . plice
ked
IFC — Indoor Fan Contactor O Terminal (Unmarked) NE To indicate common potential only;
IFM — indoor Fan Motor e Terminal (Marked) not to represent wire
IFR — Indoor Fan Relay
IP — Internal Protector mm Terminal (Circuit Board, Factory <— Plug
LAL — Low-Ambient Lockout Connected) R
LPS — Low-Pressure Switch - eceptacie
OFC — Outdoor Fan Contactor
1182 18
®
Duct connections — Concentric
ducting requires a field-fabricated tran-
sition piece external to the unit.
Field conversion to side duct connec-
tions 1s possible on all models except
those utilizing power exhaust. Units
using economizer with side duct con-
nections require accessory conversion
kit.
Head pressure control — The refrig-
eration systems in all units are inherently
designed to operate efficiently at out-
door air temperatures down to 35F
without extra controls or modifications.
An outdoor air temperature activated
fan cycling thermostat is factory in-
stalled in each unit, as required, to
accomplish this.
To permit unit to operate at outdoor
air temperatures below 35F, a Motor-
master® head pressure control may be
field installed. This control varies the
outdoor air fan speed to maintain
correct condensing temperature at out-
door air temperatures down to -20F.
A Motormaster accessory package is
available for each unit and voltage
configuration.
Sound and vibration — Operation of
rooftop units on modern, light roof
construction may induce sound and
vibration problems. On each individual
job, unit location, vibration isolation,
sound attenuation and local outdoor
noise codes may require special con-
sideration. For installation information,
refer to ASHRAE Systems Handbook,
Chapter 35, Sound and Vibration and
Carrier application literature.
THRU-THE-SIDE
DUCT CONNECTIONS
NOTE: Thru-the-side connections are not —
applicable to units with power exhaust
option.
| AIRFLOW
CONCENTRIC DUCT CONNECTION
ROOF CURE
(ACCESSORY)
3-0" MINIMUM
TRANSITION DUCT
{FIELD SUPPLIED)
STRAIGHT DUCT
(FIELD SUPPLIED)
CEILING DIFFUSER
(FIELD SUPPLIED)
DIMENSIONS (ft-in.)
{ ; :
UNIT
A 1-6: 1-5: 1.5
8 4-11 : 6-11 1 99
С 3-0:3-0: 30
i Determined by size of
D.EF.G ¢ diffuser selected
BASE UNIT
Unit shall be of a one-piece air-to-air electric cooling and
electric heating unit and shall be mounted on a full perimeter
roof curb.
Btuh or
Btuh or greater
cfm evaporator air entering unit
dry-bulb and condenser entering
dry-bulb.
Heating capacity of the system shall be
Total cooling capacity of the unit shall be _
greater, and sensible capacity shall be
at conditions of:
at. — wet-bulb,
air temperature of
kw
Unit cabinet shall be constructed of galvanized steel,
bonderized and coated with baked enamel.
Compressor system — The unit shall contain serviceable
hermetic compressor(s) with service valves, suitable vibra-
tion isolators, crankcase heater(s), sight glass(es) and
filter drier(s).
Coils shall be aluminum plate fins mechanically bonded to
copper tubes. They shall be of an intertwined design for
equal circuit loading and full active coil on part load opera-
tion to