Modine Manufacturing Airedale ClassMate CMD Installation And Service Manual page 11

INSTALLATION
Piping Installation - Hot Water Coils
CAUTION
1. Units not approved for use in potable water systems.
2. Hot water supplied to the hot water heating option must not
exceed 200°F (93°C) temperature or 125 PSIG (862 kPa)
pressure.
3. Do not attempt to reuse any mechanical or electrical
component which has been wet. Such component must be
replaced.
ATTENTION
1. Ces unités ne sont pas approuvées pour l'usage dans des
systèmes à eau potable.
2. La température de l'eau chaude alimentée en vertu de
l'option de chauffage de l'eau chaude ne doit pas dépasser
200 °F (93 °C) ou une pression de 125 lb/po² (862 kPa).
3. Ne tentez pas de réutiliser un composant mécanique ou
électrique qui a été mouillé. Ces composants doivent être
remplacés.
All plumbing connections made in the field must comply with
local building codes and be properly leak tested.
Units without Piping Package
1. Hot water coils are supplied from the factory with unions.
Field installed piping can be mounted to the supplied
unions with 3/4" female sweat connections.
2. Install shut-off valves in lines to and from each coil to allow
maintenance or replacement of unit without shutting down
and draining entire system.
3. Include a circuit setter in the return line for water flow
regulation.
4. It is advisable to use a pipe line strainer before each coil.
5. Provide adequate pipe hangers, supports, or anchors to
secure the piping system independently of the coil.
Units with Piping Package
1. Hot water piping packages are supplied factory assembled
and installed to the coil. All piping packages include the
following: control valve, shut-off valves, strainer, circuit
setter, PT ports, and balancing valve (when three-way
control valve is selected).
2. Piping package terminations are threaded drop ear
connections, and are 3/4". Drop ear connections are
attached to fixed plates, and along with the coil provide
support for the piping package.
Piping Insulation
Hot water piping and components are recommended to be
insulated to reduce heat loss
Figure 11.1 - Typical 2-Way Piping Schematic j
Figure 11.2 - Typical 3-Way Piping Schematic j
j Schematics are general and represent typical piping components. For
factory installed valve and piping packages, multiple components may be
combined into single components.
AIR 2-504.0
11