Thermo Pride MHA1-50N Installation And Service Manual page 61

All installations and services must be performed by qualified service personnel.
MID-EFFICIENCY COUNTERFLOW / HORIZONTAL GAS FURNACE SPECIFICATIONS
Model NO.
Heat input rate (BTUH)
Heating capacity (BTUH)
Nominal temp. rise
Heating fan speed
Burner orifice size for nat. gas
Burner orifice size for L.P. gas
AFUE %
Height of casing
Width of casing
Depth of casing
2
Warm air outlet
2
Return air inlet
Approx. shipping weight
Dia. of flue (vertical vent)
Dia. of flue (sidewall vent)
CFM @ .2" & .5" W.C. external
static pressure
@HI speed
@MH speed
@ML speed
@LO speed
Blower motor type & frame
Blower motor nominal HP
Blower motor full load amps
Motor shaft diameter
Direction of rotation (shaft end)
No. of speeds
Run capacitor
Blower size
Size of filters
Largest recommended air
4
conditioner
Electrical power requirements
Min. Fuse size
Combustible Floor Base
Horizontal Plenum Angles
Vent Kit (top vent option)
NOTES:
1. BTU output based on annual fuel utilization efficiency rated by manufacturer.
2. On all outlet and inlet dimensions, the first dimension is width.
3. The MHA1/MDA1 furnaces are approved for sidewall venting using only an approved sidewall power venter. Refer to Side
Wall Venting section of the Installation and service manual provided with the furnace for additional information.
4. To permit largest recommended air conditioning (at .5 static pressure), selection of the highest motor speed is required.
5. All specifications are subject to change without notice.
MDA1-50
50,000
1
40,000
LOW
81.0
17"
15" x 18"
15" x 18"
131 LBS
3"
3
3"
.2" .5"
900 730
835 680
-
580 425
1/5
3.25
3
10 mfd
370 VAC
10-9 R DD
(2) –1" x 17 ¾" x
11 ¾"
2 Ton
15 AMP
ACCESSORY ITEMS
50DA-BASE
MDA1-75
75,000
60,000
70° F.
MD LOW
0.0935" (#42)
0.0591" (1.5 mm)
80.0
44-1/4"
17"
27 ½"
15" x 18"
15" x 18"
143 LBS
4"
4"
.2" .5"
1400 1220
1200 1075
- 926 850
765 700
Permanent split capacitor, air over, 48 Y
1/3
6.0
Clockwise
4
10 mfd
370 VAC
10-9 R DD
(2) –1" x 17 ¾" x
11 ¾"
3 Ton
115 volts, 60 Hz., 1 phase
15 AMP
50DA-BASE
AOPS4942
AOPS4941
57
5
MDA1-100
100,000
81,000
LOW
81.0
17"
19" x 18"
19" x 18"
170 LBS
4"
4"
.2" .5"
1595 1370
1460 1260
1360 1170
1220 1075
1/2
8.0
½"
4
10 mfd
370 VAC
10-10 R DD
(2) – 1" x 17 ¾" x
13 ¾"
3.5 Ton
15 AMP
100CA-BASE
MDA1-125
125,000
101,000
MD LOW
81.0
17"
22" x 18"
22" x 18"
186 LBS
4"
4"
.2' .5"
2075 1790
1830 1605
1620 1430
1345 1265
3/4
11.0
4
15 mfd
440 VAC
10-10 R DD
(2) – 1" x 17 ¾"
x 17 ¾"
4 Ton
20 AMP
125CA-BASE