Carrier 42DH - Page 11

11
Fig. 18 — 42DH Hydronic Coil Piping Connection Diagram, Left Hand Unit with Reheat Coil Shown
Fig. 19 — 42DV Hydronic Coil Piping Connection Diagram, Right Hand Unit with Reheat Coil Shown
COIL HEADER CONNECTION SIZE
Unit
Size
8 Row 6 Row 4 Row 2 Row HW 1 Row HW
Nom.
Size
OD
Nom.
Size
OD
Nom.
Size
OD
Nom.
Size
OD
Nom.
Size
OD
CR - Cold Water Return
HR - Hot Water Return
CS - Cold Water Supply
HS - Hot Water Supply
RH - Right Hand
LH - Left Hand
NOTES:
1. Horizontal, left hand unit with re-heat coil shown.
2. Dimensions are in inches (mm).
0
0
2 (51)
B
C
6-7/8(175)
8-5/8(219)
E
D
1-5/8 (41)
A
2-11/16(68)
G
F
10-3/8(264)
06-12 1 1.125 3/4 0.875
3/4
0.875 1/2 0.625 1/2 0.625
16-22 1 1.125 1 1.125 1 1.125
1
1.125 1/2 0.625
30 1-1/2 1.625 1-1/2 1.625 1-1/2 1.625 1-1/2 1.625 1/2 1.625
HR
CR
CS
HS
Return Air
Drain
LH TELL-TALE
RH TELL-TALE
LEGEND
2. Vertical, right hand unit with re-heat coil shown.
0
0
2 (51)
6-7/8(175)
8-5/8(219)
RH UNIT
1-5/8 (41)
2-11/16(68)
10-3/8(264)
LH UNIT
TELL-TALE
TELL-TALE
HR
CR
CS
HS
D
C
B
A
Drain
E
Return Air
G
F
COIL HEADER CONNECTION SIZE
Unit
Size
8 Row 6 Row 4 Row 2 Row HW 1 Row HW
Nom.
Size
OD
Nom.
Size
OD
Nom.
Size
OD
Nom.
Size
OD
Nom.
Size
OD
CR - Cold Water Return
HR - Hot Water Return
CS - C W S
HS - Hot Water Supply
RH - Right Hand
LH - Left Hand
1. Dimensions are in inches (mm).
06-12 1 1.125 3/4 0.875 3/4 0.875 1/2 0.625 1/2 0.625
16-22 1 1.125 1 1.125 1 1.125 1 1.125 1/2 0.625
30 1-1/2 1.625 1-1/2 1.625 1-1/2 1.625 1-1/2 1.625 1.625
1-1/2
NOTES:
LEGEND