2
Table 1 – Accessory Heater Usage
ELECTRIC HEATER PART NUMBER SIZES USED WITH kW INTERNAL CIRCUIT PROTECTION
EHK2-05B 18-37 5 Circuit Breaker
EHK2-08B 18-37 7.5 Circuit Breaker
EHK2-10B 18-37 10 Circuit Breaker
Table 2 – Minimum CFM
Fan Coil Unit Size EHK2-05B EHK2-08B EHK2-10B
18, 19 325 350 375
24, 25 450 475 500
30, 31 575 600 625
36, 37 700 725 750
Heater
assembly
locations
Breaker box
locations
Unit sizes 18-25
Unit sizes 31-37
(Top View)
(Top View)
(Front View)
(Front View)
A13365
Fig. 1 -- Installation Locations for EHK2 Heaters
Ground
Lu
Field
Power
Wiring
Field
Ground
Wiring
ON
OFF
L1
L2
A00077
Fig. 2 -- 5--kW, 7.5--kW, 10--kW Circuit Breaker
and Disconnect Heaters
Ground Connections
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
According to NEC, ANSI/NFPA 70, and local codes, cabinet
must have an uninterrupted or unbroken ground to minimize
personal injury if an electrical fault should occur. The ground
may consist of electrical wire or metal conduit when installed
in accordance with existing electrical codes. (See
Ground/Conduit Note below.)
!
WARNING
NOTE: Use UL--listed conduit and conduit connector for
connecting supply wire(s) to unit to obtain proper grounding. If
conduit connection uses reducing washers, a separate ground wire
must be used. Grounding may also be accomplished by using
grounding lugs provided in control box.
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