HEF2 Series MANUAL
96
16.1.
Basic on/off control
❖
The Relative Humidity probe (SHR) must be placed in the room or in the return. It is
responsible for turning the pump on or off (ON/OFF) according to the set-point ± hysteresis
value. The pump will wet all the cassettes.
For example, Set-point 50 ± 5% RH (Pump starts at 45% RH - Pump stops at 55% RH)
❖
The Temperature probe (ST) is located in the drive and controls the Pre-heating coil (BC) via
the PID loop. This BC must have 10-20% extra capacity as a safety factor.
BC:
Pre-heating coil
ST:
Temperature sensor
SHR:
Relative Humidity Sensor
HEF2E
BC
ST
SHR
Summary of Contents for HEF2 SERIES
Page 2: ...HEF2 Series MANUAL 2...
Page 13: ...HEF2 Series MANUAL 13 Machine type rating plate Partly completed machinery type rating plate...
Page 66: ...HEF2 Series MANUAL 66 Wiring Diagram connections Dimensions GDB13 1 GDB13 1...
Page 67: ...HEF2 Series MANUAL 67 Adjusting A B Auxiliary contacts...
Page 69: ...HEF2 Series MANUAL 69 Wiring Diagram connections Dimensions...
Page 70: ...HEF2 Series MANUAL 70 Manual positioning...
Page 76: ...HEF2 Series MANUAL 76 13 9 G Perimeter closures cover plates dimensional drawings...
Page 78: ...HEF2 Series MANUAL 78 Dimensional drawing for Top Cover Plates...
Page 98: ...HEF2 Series MANUAL 98 H1 ON OFF or BUS...
Page 101: ...HEF2 Series MANUAL 101 1 Cassette ON 2 Cassettes ON 3 Cassettes ON Ideal Stage Control...
Page 102: ...HEF2 Series MANUAL 102 Control by stages or control ON OFF...
Page 103: ...HEF2 Series MANUAL 103 H1 ON OFF 0 10Vcc regulated or BUS...
Page 105: ...HEF2 Series MANUAL 105 Dew point control Dew point control...
Page 106: ...HEF2 Series MANUAL 106 H1 ON OFF or BUS...
Page 117: ...HEF2 Series MANUAL 117...
Page 120: ...HEF2 Series MANUAL 120 Remove the PP R D25 piping to the header PP R D25 pipe...
Page 121: ...HEF2 Series MANUAL 121...
Page 122: ...HEF2 Series MANUAL 122...
Page 123: ...HEF2 Series MANUAL 123...
Page 125: ...HEF2 Series MANUAL 125...
Page 126: ...HEF2 Series MANUAL 126 23 CLEANING THE INDIVIDUAL IRRIGATION SYSTEM...
Page 127: ...HEF2 Series MANUAL 127...
Page 128: ...HEF2 Series MANUAL 128 24 LIST OF SPARE PARTS...