Chapter hvac engineering Fundamentals: Part 1 Introduction

11.5.3
Induction units
These units are described in Sec. 11.2.5.
Equipment: Part 3
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Chapter Eleven
11.5.4
Terminal reheat
Reheat coils may be installed in conjunction with any of the terminal
units described above or may be installed in any zone branch duct,
similar to the arrangement shown in Fig. 11.4. When used with vari-
able-volume, the reheat coil is controlled to provide heating only when
zone airflow is at its minimum, usually 35 to 40 percent of maximum.
Then the room controller will allow heating as required. Normally,
reheat will be provided only in exterior zones.