Anemostat EST - Manual (Page 9)

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1220 Watson Center Road • Carson, CA 90745
Tel: (310) 835-7500 • Fax: (310) 835-0448
www.anemostat.com • [email protected]
Hot Water Connections (when applicable)
• Hot water heating coils require a field sweat connection to control valve(s) and water supply. Refer to unit
construction submittal drawing for specific connection size. Use appropriate brazing alloy for connection.
• The hot water coil is provided in either a right or left hand connection configuration. If necessary, the coil can be
rotated 180 degrees for the opposite hand connection.
• Inlet water temperature should not exceed 200°F per UL 1995.
Electrical Connections
NOTE: The manual was written with the understanding that the line power and control wiring drawings submitted for
the specific project have been acquired and are available during installation.
• Electrical wiring, connections, fusing and installation must conform to the local building codes and the NATIONAL
ELECTRIC CODE.
• For terminal with electric heat, check the unit wiring diagram for single or dual point connection for electric heater
and fan motor voltage.
• The fan terminal I.D. label lists Maximum Overcurrent Protection (MOP) for single point connection fan terminals that
have loads consisting of both blower motor and electric heater. This is considered a motor group installation. For
these units, the supply circuit must be fused individually.
• UL standards dictate that the power source must be within 10% of nameplate voltage, for safety and longevity. If
incoming voltage is 10% above or below nameplate voltage, contact power Company to correct before operating
terminal.
• The supply circuit can be fused external to the unit by the installer. The electric heater may be specified with primary
circuit fusing which would not require external fusing.
• If the blower motor is the only load, the MOP value on the fan terminal label is blank. In this case, the units may be
field wired for multiple hookups from a single branch circuit, as specified by the National Electric Code/Canadian
Electric Code and Local Codes.
• Only special HACR-type circuit breakers may be used in place of fusing for over current protection of motor group
installations.
• To determine the minimum wire size for terminals without electric heat, use the motor amperage listed on the fan
terminal label. The label lists the Minimum Circuit Ampacity (MCA) to determine the proper size for units with
electric heat. The power supply wiring is to be sized in accordance with the National Electric Code/Canadian Electric
Code and Local Codes.
• The power supply terminal block is for use with copper conductors only.
• Field installed electrical components must be mounted and wired per factory supplied wiring diagram. Factory
wiring must not be altered without written approval from ANEMOSTAT; violation of this will void warranty.
For fan terminals provided with electric heating coil: note these additional instructions:
• Connect the fan terminal as shown on the heater wiring schematic diagram found inside the heater wiring enclosure,
and also per interlocking VAV controls where applicable.
• The minimum airflow allowed is 70 CFM per KW of electric heat.
• 480 volt/3 phase coils may incorporate "wye" or other unbalanced configuration for multiple steps.