Varifan MST-2B Installation Manual Download Page 36

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Page 36

MST-2B

DESCRIPTION

VALEUR

INPUT POWER

−

100 mA

−

115/230 VAC

−

60 Hz only

Output 1
(relay)

−

10 Amp. 115 / 230 VAC

−

1/2 HP @ 115V

−

1 HP@ 230V

−

Minimum load 10 mA @ 115 VCA*

−

Minimum load 20 mA @ 230 VCA*

Alarm (relay)

−

2 Amp., 30V AC / DC max

TECHNICAL SPECIFICATIONS

* Relay will not function properly if load is smaller than the

min. value.

Storage temperature:         20 to 55°C (-4 to 130°F)

Operation temperature:    0 to 50°C (32 to 122°F)

Weight:                             0.9 Kg (1.8 lbs)

Dimensions: 97 x 163 x 145 mm

(3.80x 6.40 x 5.70”)

Summary of Contents for MST-2B

Page 1: ...INSTALLATION GUIDE USER S GUIDE ADJUST MST 2B 2 STAGE MISTING 1 2 F2 REL REDUC PER DAY MIN MAX A L A R M A L A R M L I M I T OFF ON OFF Varifan ON 6 12 9 1 11 10 DIFF DIFF RH OFF STAGE 2 S T A G E 1...

Page 2: ...quipment For added security against line voltage surges it is recommended that surge and noise suppression devices be installed at the electrical distribution panel Use of shielded cable for probes is...

Page 3: ...2 Mist output 12 2 5 Temperature probes 12 2 5 1 Single temperature probe 12 2 5 2 Averaging 12 2 6 Alarm 13 2 7 Powering up 13 CHAPTER 3 USER S GUIDE LED status window 16 Control dials 16 PRIMARY FO...

Page 4: ...CONTINUED SECONDARY FUNCTIONS Relative humidity set point 30 Minimum Ramping 31 Low Temperature Alarm 32 High Temperature Alarm 33 Relative humidity display 34 APPENDIX Troubleshooting 35 Technical s...

Page 5: ...ow full control over temperature using evaporative cooling resulting in a comfortable environment for your livestock The MST family products offer the following features Display of the highest and low...

Page 6: ...ent temperature is not within the pre established limits The output is protected by a fuse and all programmed parameters are preserved even when the MST 2B is not powered The MST 2B offers automatic d...

Page 7: ...ired room temperature All other temperature parameters adjusted in the MST 2B are relative to this reference temperature AMBIENT TEMPERATURE The ambient room temperature RAMPING Automatic daily reduct...

Page 8: ...Page 8 MST 2B...

Page 9: ...1 installed temperature probe model number 2004 1KLT 1 fuse 1 installation guide user s guide The following optional items may be included 3 additional temperature probes for temperature averaging 1...

Page 10: ...acing down The MST 2B must operate in a temperature range of 32 F 120 F 0 C 50 C The enclosure is watertight but it is not splash proof or immersion proof DO NOT SPRAY the control Cover the control ca...

Page 11: ...Temperature Record and the Low Temperature Record are locked when this switch is set to OFF 2 4 CONNECTION PROCEDURE For the following connection procedures refer to figure 1 2 4 1 Input power Use a s...

Page 12: ...ons are illustrated in figure 2 whereas connections for temperature probe averaging are shown in figure 3 2 5 1 Single temperature probe Install the temperature probe in a location that best reflects...

Page 13: ...e to the casing of the MST 2B using the four screws previously removed Set the selector knob to position 12 Upon powering up the unit will test its LED display by lighting up all of its segments Make...

Page 14: ...B Fig 1 Wiring diagram for the mister output Note for figure 1 Power cut and protection devices in case of an overload 1 Fig 2 Probe and alarm connection Optional humidity probe WHITE BLACK RED RH 3 b...

Page 15: ...ON Fig 3 Probe connection for temperature averaging Fig 4 Main bottom Board Terminal blocks switches and fuse location Terminal Block Probe 1 Probe 2 Probe 3 Probe 4 It is recommended to solder the pr...

Page 16: ...cond one indicates that the mist is active on the second stage timer If one of the LEDs is blinking this indicates that the mist is on the inactive portion of the respective timer The third LED is lig...

Page 17: ...rough 11 are selected the LED status window displays a blinking value Function 12 displays room temperature The 5 secondary functions are 1 Humidity set point 9 Ramping minimum temperature limit 10 Lo...

Page 18: ...setting of 13 5 F 9 5 C to a maximum setting of 105 0 F 41 0 C Adjusting the main set point temperature rotate the Selector dial to position 1 rotate the Adjuster dial counter clockwise to decrease t...

Page 19: ...imer The differential is adjusted in 0 5 degree increments from a minimum setting of 0 5 F 0 5 C to a maximum setting of 10 F 5 0 C Adjusting stage 1 differential rotate the Selector dial to position...

Page 20: ...number 1 will be continuously illuminated The stage 1 timer run time is adjusted in 1 minute increments from a minimum setting of 1 minute to a maximum setting of 60 minutes Adjusting stage 1 timer ru...

Page 21: ...mum setting of 0 minutes to a maximum setting of 60 minutes If you do not wish to have the mist output use this timer set this parameter to 0 In this case mist will be continuously activated when ambi...

Page 22: ...rence from the main set point The stage 2 RSP is adjusted in 0 5 degree increments from a minimum setting of 0 0 F 0 0 C to a maximum setting of 18 0 F 10 0 C Adjusting the stage 2 RSP rotate the Sele...

Page 23: ...s adjusted in 0 5 degree increments from a minimum setting of 0 5 F 0 5 C to a maximum setting of 10 F 5 0 C Adjusting stage 2 differential rotate the Selector dial to position 6 rotate the Adjuster d...

Page 24: ...umber 2 will be continuously illuminated The stage 2 timer run time is adjusted in 1 minute increments from a minimum setting of 1 minute to a maximum setting of 60 minutes Adjusting stage 2 timer run...

Page 25: ...inimum setting of 0 minutes to a maximum setting of 60 minutes If you do not wish to have the mist output use this timer set this parameter to 0 In this case mist will be continuously activated when a...

Page 26: ...ition 9 rotate the adjuster dial counter clockwise to increase the ramping rate and clockwise to decrease it The ramping setting is displayed on the MST 2B NOTE When ramping is activated the main set...

Page 27: ...a minimum display of 13 5 F 10 0 C to a maximum display of 105 0 F 41 0 C If a temperature lower than 13 5 F is recorded Lo is displayed Viewing the lowest temperature recorded rotate the selector dia...

Page 28: ...from a minimum display of 13 5 F 10 0 C to a maximum display of 105 0 F 41 0 C If a temperature higher than 105 0 F 41 0 C is recorded Hi is displayed Displaying the highest temperature recorded rotat...

Page 29: ...ed to the nearest 0 1 degree from a minimum display of 13 5 F 10 0 C to a maximum display of 105 0 F 41 0 C If the temperature is lower than 13 5 F 10 0 C Lo is displayed If the temperature is higher...

Page 30: ...oint The humidity set point is adjusted in 1 increments from a minimum setting of 30 to a maximum setting of 80 Adjusting the humidity set point rotate the selector dial to position 12 rapidly rotate...

Page 31: ...Adjusting the minimum ramping setting rotate the Selector dial to position 12 rapidly rotate the Adjuster dial back and forth to enter secondary function mode rotate the Selector dial to position 9 r...

Page 32: ...emperature alarm is adjusted in 0 5 degree increments from a minimum setting of 32 0 F 18 0 C to a maximum setting of 0 0 F 0 0 C Adjusting the low temperature alarm setting rotate the selector dial t...

Page 33: ...e alarm is adjusted in 0 5 degree increments from a minimum setting of 0 0 F 0 0 C to a maximum setting of 32 0 F 18 0 C Adjusting the high temperature alarm rotate the selector dial to position 12 ra...

Page 34: ...of 90 If the humidity read by the probe exceeds 90 the value displayed will remain at 90 If the humidity read by the probe is lower than 30 or if the probe is not present F2 will be displayed Display...

Page 35: ...Probe is unplugged or defective Mist output is not functioning Make sure LED 1 or 2 is illuminated If the LED is flashing the mist output is in the timer s idle time If the LED is continuously activa...

Page 36: ...nimum load 10 mA 115 VCA Minimum load 20 mA 230 VCA Alarm relay 2 Amp 30V AC DC max TECHNICAL SPECIFICATIONS Relay will not function properly if load is smaller than the min value Storage temperature...

Page 37: ...5 C 11 High Temperature Alarm 20 F 12 C RECORD FORM SECONDARY FONCTION 1 Main set point 77 F 25 C 2 Stage 1 differential 5 5 F 2 C 3 Stage 1 timer run time 31 31 4 Stage 1 timer idle time 30 30 5 Sta...

Page 38: ...Page 38 MST 2B...

Page 39: ...flood fire hail or any other natural disaster Any unauthorized work modification or repair on this product automatically voids the warranty and disclaims the manufacturer from all responsibility The...

Page 40: ...MAV MST 2B Version 1 1 June 2005...

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