Magic-pac MHP4 Series Installation And Maintenance Instructions Manual page 6

Model
MHP4-9-12
MHP4-9-18
MHP4-9-24
MHP4-9-30
MHP4-9-36
MHP4-10-18
MHP4-10-24
MHP4-10-30
Condensate Drain
Provisions must be made to properly drain the indoor and
outdoor drain pans of this appliance.
Indoor drain connection: 1/2" NPT to 3/4" PVC fitting (schedule
40). Outdoor drain connection: 3/4" NPT to 3/4" PVC fitting
(schedule 40). Both drains must be trapped as shown in Figure
5. The drain line should pitch gradually downward at least 1"
per 10' of horizontal run to open drain.
CAUTION
Use thread sealant on the threaded fittings. Install
threaded fittings by hand only. Do not over torque the
fittings.
Do not thread metal condensate fittings to unit drain
pan.
If local codes require the use of metal condensate lines, do
not thread metal fittings into the unit drain pan. A 1/2" x 3/4"
threaded plastic nipple is available from the manufacturer as
Page 6 of 18
Blower Performance
Blower
Speed
Low
Medium/Low
Medium/High
High
Low
Medium/Low
Medium/High
High
1075
Low
Medium/Low
1000
Medium/High
1100
High
1270
Low
Medium/Low
Medium/High
High
Low
Medium/Low
Medium/High
1070
High
1220
Table 3
Issue 0941
External Static Pressure (in.w.c. w/filter)
0.1 0.2
450 440
700 690
810 800
940
920
620 600
840
820
975 940
1000
750
720
980
1080
1230
450
440
690
700
810 800
940 920
630 620
900 890
1030
1150
Condensate Drain Installation
0.4
0.3
425 400
650
680
790 770
875
850
580 560
785 750
825
870
930 880
680 650
950 920
1050 1020
1200 1170
425 400
680
650
790 770
850
875
610
580
850 800
920
1000
1100 1030
Figure 5
0.5
370
600
730
810
535
700
760
800
620
880
980
1130
370
600
730
810
550
750
840
920
506325-01