Electric Heater - Lennox FLEXY II Series Installation, Operating And Maintenance

HEATING : ELECTRIC HEATER
G I
ENERAL NFORMA TI ONS
The electric heater comprises of shielded resistance heaters, which are smooth stainless steel tubes 6 W/cm2 capacity.
High temperature limit control offers ov erload protection and is set to 90°C and located at less than 150mm after electric
heaters. This is provided as a standard feature on the electric heater, with the electric power supply cables made of reticulated
silicon rubber, resistant to temperatures up to 200°C. For any rooftop unit size, three sizes of electric heater are av ailable, S
(standard), M (Medium) and H (high).
FLEXY 2 85, 100 and 120 have:
Standard heat: 30 kW, 2 stages
Medium Heat: 54 kW, Fully modulating (Triac)
High Heat: 72 kW, Fully modulating (Triac)
FLEXY 2 150 and 170 have:
Standard heat: 45 kW, 2 stages
Medium Heat: 72 kW, Fully modulating (Triac)
High Heat: 108 kW, Fully modulating (Triac)
FLEXY 2 150 and 170 have:
Standard heat: 72 kW, 2 stages
Medium Heat: 108 kW, Fully modulating (Triac)
High Heat: 162 kW, Fully modulating (Triac)
Capacity of the medium and high heat heater can be limited electronically to an exact v alue through the CLIMATIC™ 50.
To reduce installation time and hence cost, electric heaters are always factory f itted, fully wired and tested, prior to shipment.
Module size (kW) Current (A) Cap (kW) Current (A) Cap (kW) Current (A) Cap (kW)
IOM – FLEXY II – 1007 – E
380V
30 40.7
45 61.1
54 73.4
72 55.1
108 146.8
162 220.2
400V
26.8 42.5 29.5
40.5 63.8 44.3
48.4 76.6 52.9
36.2 57.5 39.8
96.8 153.2 105.8
145.2 229.8 158.7
415V
44.5 32.0
66.8 48
80 57.7
60.0 43.1
160 115.4
240 173.1
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