background image

VALLOX 252 M

INTERNAL WIRING DIAGRAM VALLOX 252 M

2

18

K4 = Contactor, disconnection of the heating units for heat recovery bypass
S = Service switch (door switch)
LP1 = Preheater 2,500W (optional)
LP2 = Post-heating unit 2,500W (optional)
TZ1 = Overheating pro60oC
TZ2 = Overheating pro95oC (manual reset)
PDS1 = Supply air duct pressure difference switch (optional)
PDS2 = Discharge air duct pressure difference switch (optional)
F1 = Fuse 4A
F2 = Fuse 1.6A

TF  = Supply air fan 2x230W
PF  = Discharge air fan 2x230W
C = Capacitor 6mF
FG = Damper motor
TR = Transformer 230V 4A/24V 25VA
TS1 = Defrosting thermostat for heat recovery cells + 2oC (adjustable)
TS2 = Thermostat for post-heating unit +15oC...25oC
TS5 = Thermostat for pre4oC (adjustable)
K1 = Contactor max. speed
K2 = Contactor min. speed
K3 = Contactor 1/2 speed

Summary of Contents for 252 M

Page 1: ...charge air 210 dm3 s 100 Pa 230 dm3 s 100 Pa 2 heat recovery cells 70 Manual or remote monitoring control 2 5 kW 11 A 2 5 kW 11 A Approx 5kW EU 3 EU 7 EU 3 EU 5 210 kg 2x230 W 1 A 2x230 W 1 A Fans Hea...

Page 2: ...tarts when outdoor air temperature falls below ca 5 C VALLOX 252 M can be operated with the manual cont rol unit contained in the delivery With the manual control unit you can select the min or max ve...

Page 3: ...8 Fan speeds 90 100 110 130 140 160 200 230 Control voltage V 200 230 275 350 390 450 590 675 Input power W 3 1 2 3 4 5 6 7 8 90 100 110 130 140 160 200 230 200 230 275 350 390 450 590 675 74 85 99 1...

Page 4: ...OW Sound power level from VALLOX to discharge air ducts by octave band Lw dB CONTROL POSITION AIR FLOW Medium frequency of the octave band Hz Sound power level coming from VALLOX through the envelope...

Page 5: ...ntering the radiator tv 55 C Temperature of air entering the radiator ti 15 C Cooling of water in the radiator C Water flow dm3 s Total output of the radiator kW Cooling of water in the radiator C Wat...

Page 6: ...OL 2 6 Control Diagram VALLOX 252 M MANUAL CONTROL UNIT Distribution Panel 2x16A if equipped with a preheater Internal electrical and control connections Post heating unit electric Preheater electric...

Page 7: ...entilation zone Supply Air Temperature The control adjustment center of the unit directs the operation of the post heating unit LP2 on the basis of the measuring data on the sensor of the TS2 temperat...

Page 8: ...L CONTROL UNIT 2 8 Control Diagram VALLOX 252 M VKL MANUAL CONTROL UNIT Distribution Internal electrical and control connections Post heating unit water circulation Preheater electric Sound attenuator...

Page 9: ...ir Temperature A regulating valve not included in the VALLOX 252 M delivery directs the operation of the LP2 post heating unit on the basis of the measurement data given by the thermostat sensor in th...

Page 10: ...CONTROL Distribution Panel Internal electrical and control connections Post heating unit electric Preheater electric VENTILATION ZONE 2x16A if equipped with a preheater Pressure unit Pressure unit Sou...

Page 11: ...ccording to the control signal 24VAC received by the Min 1 2 and Max contacts in the connection box Remote monitoring receives potential free operation mo de information on the mode selected Min 1 2 M...

Page 12: ...L MANUAL CONTROL UNIT Distribution Panel Internal electrical and control connections Post heating unit water Preheating electric Ventilation zone Pressure switch REMOTE MONITORING CONTROL CENTER OF TH...

Page 13: ...l 24VAC received by the Min 1 2 and Max contacts in the connection box Remote monitoring receives potential free operation mo de information on the mode selected Min 1 2 Max Supply Air Temperature A r...

Page 14: ...he unit is equipped with an adjustable socle If the unit is mounted on a wall keep in mind the weight of the unit 190kg and vibration damping The unit is splash proof IP34 so it can also be mounted in...

Page 15: ...enuator unit also features detachable attenuation segments in supply and discharge air ducts 4 250 external fittings enable the laying of ducts straight from the unit by using bends etc The top of the...

Page 16: ...to be connected through the lead through tubes to the connection box inside VALLOX 252 If a water heating unit is used lead the supply and return pipes not included in the delivery of the heating uni...

Page 17: ...ith remote monitoring control Selection of Control Voltages for Capacity Modes Min 1 2 and Max BEFORE SELECTING CONTROL VOLTAGES MAKE SURE THAT THE UNIT HAS BEEN DISCONNECTED FROM THE MAINS SUPPLY If...

Page 18: ...al reset PDS1 Supply air duct pressure difference switch optional PDS2 Discharge air duct pressure difference switch optional F1 Fuse 4A F2 Fuse 1 6A TF Supply air fan 2x230W PF Discharge air fan 2x23...

Page 19: ...with a PREHEATER and a POST HEATING UNIT WITH WATER CIRCULATION the L1 and L on the terminal block are connected In this case THE PREHEATER DOES NOT NEED a separate power supply NOTE When the VALLOX...

Page 20: ...n on the 1 2 mode Operation mode information on the Max mode Operation mode information from the pressure difference switch Operation mode information from Pos 1 discharge air duct Entering operation...

Reviews: