Direct Expansion Coils & Heating Coils - Daikin AVS Installation Manual

Coil Headers, Locations
Chilled Water and Heating Coils
Figure 47 - Chilled/Hot Water (2-pipe) Unit
(Coils D, E, U)
Left Hand
Air Flow
S = Supply
R = Return
B
A
R
13-3/4" 13-3/4"
S
(349mm) (349mm)
8-1/2"
(216mm)
J
Note: For opposite end drain steam coils (code 78,79) Return (R) is 7
table 6 for dimensions)
Direct Expansion Coils and Heating Coils (See Table 7 for Direct Expansion (DX) Coil)
Figure 50 - Direct Expansion (G) and Hot Water Unit
(Cooling Coil G) (Heating Coils 65, 66, 67) (Not Reheat)
(Cooling) Left Hand
Air Flow
B
F
I
SL
S
LL
14-1/4"
13-3/4"
R
(368mm)
(349mm)
8-1/2"
(216mm) (410mm)
J
A
Figure 52 - Direct Expansion and Electric Heating
(Cooling Coils G) (Heating Coils 12, 13)
Right Hand
Junction Box
14"
(356mm)
Table 8 - Heat/Cool Position/Combinations In Air Stream (one coil per position) Note: X indicates Available.
First Position in Air Stream
Heating Coils
65 = 1-Row Hot Water Coil
66 = 2-Row Hot Water Coil
67 = 3-Row Hot Water Coil
68 = Low Capacity Steam Coil
69 = High Capacity Steam Coil
78 = Opposite End Drain Low Capacity Steam Coil
79 = Opposite End Drain High Capacity Steam Coil
12 = Low Electric Heat Coil
13 = High Electric Heat Coil
00 = None
See Notes and Tables 6 and 7 on page 18
IM 817-4
Figure 48 - Chilled Water and Hot Water Unit
(Cooling Coils S, W, V) (Heating Coils 65, 66, 67)
Right Hand (Cooling) Left Hand
Air Flow
Air Flow
F
B
E
R
A
R
S
S
8-1/2"
(216mm)
J
J
(Heating) Right Hand
Air Flow
B
I
LL
S
R
13-3/4"
(349mm)
16-1/8"
8-1/2"
(216mm)
J
A
Air Flow
D
C
LL
11-3/4"
SL
(299mm)
7-1/4"
(184mm)
J
L
Second Position in Air Stream
F U D E 00
65 66 67 V
65 66 W
65 66 67 G
G 12
V S W 12
V S W 12
G V S 68
65 Y
(Heating) Right Hand
Air Flow
S = Supply
R = Return
S
16-1/8"
(410mm) 13-3/4"
(350mm)
11"
8-1/2"
(279mm)
(216mm)
⁄ " (184mm) from bottom of unit and H - 2" (51mm) from back of unit. (see
1
4
Figure 51 - Direct Expansion (G) and Steam Unit
(Cooling Coil G) (Heating Coils 68, 69, 78, 79)
(Cooling) Left Hand
K
G
H
SL
14-1/4"
14-1/4"
(368mm) R
(368mm)
9-3/4" 10-1/8"
(248mm) (257mm)
J
Figure 53 - Chilled Water (1st Position) and Electric Heating
(Cooling Coils V, S, W) (Heating Coils 12,13)
Face and Bypass
AVS
S
13
13
69 78 79
Cooling Coils
U = 2-Row CW/HW 2-Pipe Coil
D = 3-Row CW/HW 2-Pipe Coil
E = 4-Row CW/HW 2-Pipe Coil
F = 5-Row CW/HW 2-Pipe Coil
V = 2-Row CW Coil
S = 3-Row CW Coil
W = 4-Row CW Coil
Y = 5-Row CW Coil
G = Direct Expansion Coil
Y = 5-Row CW Coil
Figure 49 - Chilled Water and Steam Unit
(Cooling Coils S, V)
(Heating Coils 68, 69, 78, 79)
(Cooling) Left Hand
Air Flow
S = Supply
B
B
R = Return
A A
R
R S
8-1/2"
(216mm)
J
J
Air Flow
B
D
S SL
LL
11-3/4"
11-3/4"
(299mm) (299mm)
13-3/4"
(349mm)
Right Hand
Air Flow
B
Junction Box
A
R
14"
S
(356mm)
8-1/2"
(216mm)
J
L
Valve
AVS Elect.. AVV AVV Elect.
X X
X X
X X
X X
X
X
X
X X
X X
(Heating) Right Hand
Air Flow
K
H
S
R
16-1/8"
13-3/4"
(410mm)
(350mm)
11"
(279mm)
J
(Heating) Right Hand
Air Flow
D
K
S
LL
H
14-1/4"
R
(368mm)
SL
10-1/8"
7-1/4"
(257mm)
(184mm)
J
C
13-3/4"
(350mm)
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