Aiko CTH3-150 Manuale Utente

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The heater can be configured so that several heaters 
within the same heating zone will modulate 
simultaneously with connection to a single heat 
demand control device. The heat demand control 
device (

See Page 44, Section 10.4) will be wired 

directly to a single heater configured as the central 
heater. The remaining heaters in the zone will be 
configured as satellite heaters and will modulate 
based on control signaling from the central heater. 
Zoning capability allows any CTH3-Series heater 
(regardless of input) to modulate based on the signal 
from the central heater. During modulation, each 
satellite heater will operate at the same percentage 
of full rated input as the central heater.

Central heater configuration is set by positioning of 
jumpers on pin blocks (J10 and J9) located on the 
control inside the heater compartment, 

Figure 23. Jumper position on J10 shown in Figure 
23, will configure heater as a central heater and at 
the same time configure the heater for the desired 
heat demand device (zone sensor, thermostat, 
analog input, or 10K Ohm pot.). If jumpers on J10 are 
positioned for "analog", jumper on J9 must be 
positioned for either 0-10 Vdc or 4-20 mA. If jumpers 
on J10 are not positioned for "analog", the J9 jumper 
may be left alone.