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IM 830-6
Coil Connection Locations
Heating Only
Note:
1. Unless otherwise noted left hand connections
are the same as right hand connections.
2. Right-hand connections shown in figures.
Figure 2: Hot Water Heating Only Unit (Coils 65, 66, 67)
Figure 3: Steam Heating Only Unit (Coils 68, 69)
Figure 4: Electric Heating Only Unit (Coils 12, 13)
Notes:
1.
All coils have the same end supply and return connections.
2.
All water coil connections are
⅞
" I.D. (female) sweat and all steam
coils are 1
⅛
" (female) sweat connections. All coil connections
terminate 9" (229mm) from the end of the unit.
3.
Steam coils have a factory installed pressure equalizing valve and
a 24" (610mm) long pressure equalizing line which terminates in a
½
" M.P.T. fitting.
4.
Condensate connection is same end as coil connections, but is
field reversible. Drain can be sloped in field.
5.
All dimensions are approximated.
Table 4: Heating Only – Coil Position / Combinations in Air Stream
First Position in Air
Stream
Second Position
in Air Stream
Face and
Bypass
Valve
AHF
AHV
AHV
Elec.
65, 66, 67, 68 69
Z
X
X
12, 13
Z
X
Note:
X Indicates Available. One coil per position.
Heating Coils
Cooling Coils
65 = 1-row Hot Water Coil
Z = None
66 = 2-row Hot Water Coil
67 = 3-row Hot Water Coil
68 = Low Capacity Steam Coil
69 = High Capacity Steam Coil
12 = Low Electric Heat Coil
13 = High Electric Heat Coil
