Carrier MODU-PAC 50DF - Manual (Page 32)

I 50DF Modu-Pac® |
Performance data (cont)
INDOOR AIR FAN PULLEY DATA
925
931
1073
1033
1159
1225
1300
MOTOR
PULLEY
No. Grooves
2—3V-6 0
2-3V-6 5
2-3V-5 0
2~3V-5 3
2-3V-5.8
2.-3V~6 0
FAN
PULLEY
925
984
1073
1093
1139
1159
1225
1300
2-3V-5 6
2-3V-4 S
2~3V—6 S
2~-3V-5,0
2— 3V—6.9
3— 3V-5 3
2-3V-56
2—3V-6 0
-Type-
1— 3V-
2— 3V-
2—3V-
2-3V-
2--3V-
2—3V-
2—3V-
2--3V-
2-3V-
2-3V-
2-3V-
2- 3V-
3— 3V-
3—3V-
2—SV­
IO 6
106 :
106 ;
80 •
80 Н
80 Н
80 '
Toe'T
■ 80 '
106 :
■ 80 '
■10.6 i
■
SO ;
■ 80 •
80 ;
BELT
NO -SIZE
'2—3V-7ÌÓ '
2—3V-750
2—3V—750
2-3V-670
2-3V-670
2—3V-670
2-3V-710
2—3V-
2-3V-
2—3V-
2-3V-
2— 3V-
3- 3V-
3—3V-
2-3V-
750
■670
750
■710
■750
■710
■ 710'
■710
325
991
1073
1093
1141
1159
1225
1300
2-3V-5 6
2_3V~6 0
2—3V—6 5
3_3V_S 0
4_3V-^ 5
4-3V-5.3
4—3V—5 6
3~3V~6 0
925 !
991
1073 :
1093
1159 '.
1225 ;
1300 '
925^
991 ;
1039 ■
1073 ;
1093
1159 :
1225 Í
4_3V—5.6
3— 3V—6 0
4— 3V—6.S
4- 3V-5 0
5- _3V-5 3
4...3V-S
6
4_3V_6 0
T—3V—5 6‘
4~3V—6 0
S_3V—4 75
4_3V—6 5
5-3V-5 C
S-3V-5 3
5„3V~5 6
2—3V-
2—3V-
2- 3V-
3- 3V-
4-
3V-
4_3V~
4-3V-
3-3V-
•106 :
■106 ■
■106 ;
80 :
69 I
8.0
:
80 :
■ 80
2-3V-
2—3V-
2— 3V-
3— 3V-
4— 3V-
4—3V-
4—3V-
3—3V- -750
-750
-750
-710
-670
-710
-710
-710
-1
4~3V-
3- 3V-
4— 3V-
4- 3V-
5— 3V-
5-3V-
4—3V-
4_3V_
4- 3V-
5— 3V-
4— 3V-
5- -3V.
5—3V-
5-3V-
-10.5 ;
-TO 6
-105 ;
- SO '
- 80 :
- 8.0 ;
- 80 ;
-ioT*!
-10 6
- S 0
- 1 0 6 :
- 8 0
- 8 0 :
- 8 0 ;
3~3V-
3—3V-
3— 3V-
4— 3V-
5— 3V-
5—3V-
4—3V-
4::_3V-
4— 3V-
5— 3V-
4— 3V-
5- 3V-
5--3V-
S--3V-
■7S0t
■750
•750t
■710
■710
■ 710*
■710
■7’50“
■750
710
750
710
■710
■710
925 4—3V—6 6 1 4--3V—1 0 6 4—3V—750
991 4—3V—6 0 I 4—3V—10 6 4—3V—750
i 1039 5-3V—4 75 1 5—3V— 8 0 5—3V-710
1073 4—3V—6 5 i 4—3V—10 6 4—3V-750
1093 5—3V—5 0 i 5—3V— 8 0 5—3V--710
1159 5—3V—5 3 1 5—3V— 8 0 5—3V—710
1225 5...3V—5 6 ; 5—3V— 8 0 5—3V-710
1312 5—3V—6 0 ; 5—3V— 8 0 5-3V-710
1450 S-3V—5 0 : 5—3V— 6 0 5—3V—670
Shaded values indicate standard or optional pulley combinations
available as shown in Physical Data table All other combinations
are field supplied
'Remove one belt.
fDrive requires 3 belts: 4 belts may be used if desired
OPTIONAL EQUIPMENT RESISTANCES (in. wg)
UNIT
MODEL
50DF
024-
044
50DF
054
50DF
064
OPTION
Bag Filter
Economizer
Economizer with Exhaust
Electric Heaters 0 5 1 (Low)
(Heat: Cool Ratio)0 75 1 (Med)
_ 1 0:1 (High)
Bag Filter
Economizer
Ecormmizer with Exhaust_
Electric Heaters 05 1 (Low)
Bag Filter
Economizer
Economizer with Exhaust _
Electric Heaters 05 1 (Low)
HEATING CAPACITIES
UNIT CFM/TON
300 400 500
14 25 38
03 05 08
09 .15 .23
06 09 13
09 15 23
14 .25 .35
14 25 38
03 04 08
11 .15 .24
12 .23 .38
.20 36 55
04 07 —
.13 .21
—
18 35 —
VOLTS
(Nominal)
"2Ò8-230’"
460
208-230
460
208-230
460
208-230
460
208-230
460
208-230
460
KW
30-37^
37
45-55
55
45-55
55^
60-73
73
75-91
91
75-91
91
J...
BTUH
126,280
187.715
187.715
249,150
310,585
,585
Controls
Variable volume operating sequence (with
optional electric heat)
Clock in remote control box switches controls to DAY
(OCCUPIED) mode. Indoor air fan runs for one minute
before any other controls function. (This allows sensing
of unit discharge air to start from the conditioned space
ambient rather than initial unit ambient.)
If return air is below adjustable set point of first stage of
the morning warmup thermostat, heaters energize. Out­
door air dampers remain closed. Normally open contacts
in base unit override the VAV terminal controls and room
terminals remain open during heating. (Field-supplied
controls)
When first stage of morning warmup thermostat is
satisfied, heaters shut down, indoor air fan runs contin­
uously, and outdoor air dampers remain closed.
When conditioned space temperature rises to adjustable
set point of second stage of morning warmup thermostat,
unit switches to COOLING mode; outdoor air dampers go
to at least the minimum position. (Once the unit has gone
into cooling mode, heat cannot come on during occupied
time period set on the clock.)
If outdoor air enthalpy is below setting of enthalpy con­
troller, economizer modulates open. (If outdoor air enthalpy
is above enthalpy set point, economizer remains at mini­
mum position.) Economizer acts as first stage of cooling
providing “free-cooling” with outside air. If outside air alone
cannot satisfy cooling requirements of the conditioned
space, economizer cooling is integrated with mechanical
cooling.
Compressor(s) will start, stop, load and unload and
economizer will modulate to maintain discharge air tem­
perature. If outside air temperature drops below the
adjustable setting (normally 50 F) of the low-ambient
lockout, the compressor(s) will shut down.
At end of DAY (OCCUPIED) mode on the clock, the
unit enters the NIGHT (UNOCCUPIED) mode. The out­
door air damper closes, and indoor fan and compressors
shut down.
1182 32