IM 725 (1-02)
21
Typical Steam Coil Piping
Figure 69 - Face and Bypass With End-of-Cycle Valve - Same End Drain
Connection (Piping Within Unit End Compartment)
Figure 70 - Face and Bypass With End-of-Cycle Valve - Same End Drain
Connection (Piping Outside Unit End Compartment)
Figure 71 - 2-Way Modulating Valve Control - Same End Drain Connection
(Piping Within Unit End Compartment)
14
13
13
4
6
7
8
15
9
14
4
6
7
15
9
15
15
14
13
4
6
7
8
15
11
Figure 72 - Opposite End Drain Connection – (78/79 Coils)
Left Hand Steam Supply and Right Hand Steam Return (Shown)
Control Valve: Install On Center Coil Connection
Drain Line
(By AAF-HermanNelson)
Vacuum Breaker Tube
(By AAF-HermanNelson)
Vacuum Breaker
(By AAF-HermanNelson)
Steam Supply
Steam Return
Vacuum Breaker Tube
(By AAF-HermanNelson)
Steam Trap (By Others)
1
⁄
4
˝ Flare By
1
⁄
2
˝ MPT Half-Union And
1
⁄
4
˝ Flare (By AAF-HermanNelson)
Tee (By Others)
Right End View
Left End View
