Magic-pac MHP4 Series Installation And Maintenance Instructions Manual - page 6
Page 6 of 18
506325-01
Issue 0941
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.
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
Figure 5
Condensate Drain Installation
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.
CAUTION
Blower Performance
Table 3
Blower
Speed
Medium/Low
0.1
External Static Pressure (in.w.c. w/filter)
Model
0.2
0.3
0.4
0.5
MHP4-9-12
MHP4-9-18
MHP4-9-24
MHP4-9-30
MHP4-9-36
MHP4-10-18
MHP4-10-24
MHP4-10-30
Medium/Low
Low
Medium/High
High
Low
Low
Low
Low
Medium/Low
Medium/Low
Medium/Low
Medium/High
Medium/High
Medium/High
Medium/High
High
High
High
High
450
440
425
400
370
700
690
680
650
600
810
800
790
770
730
940
920
875
850
810
620
600
580
560
535
840
820
785
750
700
975
940
870
825
760
1075
1000
930
880
800
750
720
680
650
620
1000
980
950
920
880
1100
1080
1050
1020
980
1270
1230
1200
1170
1130
450
440
425
400
370
700
690
680
650
600
810
800
790
770
730
940
920
875
850
810
630
620
610
580
550
900
890
850
800
750
1070
1030
1000
920
840
1220
1150
1100
1030
920