– 5 –
SECTION IV - DUCTWORK AND TRANSITIONS
A. To obtain rated performance from the coils and
to eliminate air temperature control problems due
to improper duct design and/or installation, use the
following suggestions as a guide in the design of ducts
and transitions.
Angle “X” in Figure 5 should not exceed 15 degrees.
Steeper angles in duct transitions will create low
air velocities in one portion of a coil, and high air
velocities in the other portion of the coil, resulting in
poor downstream temperature control.
B. Turning vanes must be used to assure even
distribution of air over the entire coil where elbows are
used in the inlet and/or outlet side of a preheat coil.
(See Figure 6.)
C. When the coil is used as a preheat coil in
conjunction with a cooling coil located downstream
of the heating coil, a minimum space of 36" should
be allowed between this coil and the cooling coil, as
shown in Figure 7. When the cooling coil is too close
to this coil, the closed face (or by-pass) dampers on
the coil during summer operation will partially block
areas of the face of the cooling coil, reducing its
effectiveness.
D000746
Содержание MV
Страница 7: ... 7 Photo of Direct Coupled VIFB Entering Air Side Photo of Direct Coupled VIFB Leaving Air Side ...
Страница 8: ... 8 SECTION VI PARTS DRAWING Enlarged View C Section A A Section D D Elevation ...
Страница 11: ... 11 STEAM PIPING VIFB Coil Piping Diagram 15 psig and below W12A ...
Страница 12: ... 12 STEAM PIPING VIFB Coil Piping Diagram Above 15 psig W33B ...
Страница 13: ... 13 HOT WATER PIPING VIFB Coil Piping Diagram One or Three Row Coils W13B ...
Страница 14: ... 14 HOT WATER PIPING VIFB Coil Piping Diagram Two Row Coil W32B ...
Страница 15: ... 15 STEAM PIPING MV Coil Piping Diagram 15 psig and below W27A ...
Страница 16: ... 16 STEAM PIPING MV Coil Piping Diagram Above 15 psig W28A ...
Страница 17: ... 17 HOT WATER PIPING MV Coil Piping Diagram Two Row Coil W29A ...
Страница 19: ... 19 ELECTRIC AND PNEUMATIC CONTROLS D000756A ...
Страница 23: ... 23 ...
Страница 24: ...4830 TRANSPORT DRIVE DALLAS TX 75247 TEL 214 638 6010 www ljwing com ...