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Page 19  

 
 

PRIMARY FUNCTIONS 

 
 

 

MAIN SET POINT 

 
 
The main set point establishes the target 
temperature in the building. This value is used 
as the reference point for other settings. The 
main set point temperature is adjusted in 0.5 
degree increments from a minimum 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 Adjustor dial counterclockwise to 
decrease the temperature setting, 
clockwise to increase it. 

 
The main set point temperature is displayed on 
the MST-1. 

 

Note: The ramping feature (primary 
function 9) must be (OFF) to adjust the 
main set point.

 

CHAPTER 3 - USER’S GUIDE 

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Содержание MST-1

Страница 1: ...MST 1 USER S MANUAL A L A R M A L A R M HI F2 LO ADJUST Varifan MST 1 TIMER on off reduc per day 9 L I M IT 8 8 8 9 9 P E R I O D DIFF COO L H E A T www monitrol com...

Страница 2: ...s equipment 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...

Страница 3: ...Switch 11 2 4 Connection Procedure 11 2 4 1 Input Power 11 2 4 1 1 115 VAC 11 2 4 1 2 230 VAC 12 2 4 2 Stage 1 12 2 5 Temperature Probes 12 2 5 1 Single Temperature Probe 12 2 5 2 Averaging 12 2 6 Al...

Страница 4: ...d High Temperature 24 Ambient Room Temperature Display 25 SECONDARY FUNCTIONS Heating or cooling mode 26 Duty cycle period 27 Minimum Ramping 28 Low Temperature Alarm 29 High Temperature Alarm 30 APPE...

Страница 5: ...The MST product line offers these features Heating or cooling mode Hi Lo temperature indication Automatic temperature reduction ramping Computer compatible with RCM 40 The MST 1 provides microprocesso...

Страница 6: ...s exceed alarm set points Further security may be obtained by connecting all MST series controls in a network configuration to a computer via the use of an optional RCM 40 remote monitoring unit This...

Страница 7: ...settings on the MST 1 are relative to the main set point temperature AMBIENT TEMPERATURE The actual temperature of the room RAMPING An automatic daily reduction in the main set point and all temperatu...

Страница 8: ...Page 8 MST 1 www monitrol com...

Страница 9: ...lled temperature probe model number 2004 1KLT 2 cable fasteners or fuses 1 User s manual The following optional items may be included 3 additional temperature probes for temperature averaging 1 specia...

Страница 10: ...and adapts the control panel for 115 VAC or 230 VAC line voltage Refer to Figures 1 and 2 To limit the unit s exposure to noxious gases install the unit in a hallway Make certain that the unit is moun...

Страница 11: ...In this case the temperature will decrease faster to the main set point Heat inverse logic 2 4 CONNECTION PROCEDURE For the connection procedures which follow refer to Figures 1 and 2 2 4 1 Input powe...

Страница 12: ...probe connections are illustrated in Figure 3 while temperature averaging connections are illustrated in Figure 4 2 5 1 Single Temperature Probe Install a single temperature probe in an area that bes...

Страница 13: ...g of the MST 1 using the four screws previously removed Set Selector knob to position 12 Upon power up the unit will test it s display by briefly lighting all the segments of it s LED Make certain tha...

Страница 14: ...Page 14 MST 1 Fig 1 Wiring diagram for One Fan Fig 2 Wiring diagram for One heating unit www monitrol com...

Страница 15: ...Page 15 Note for figures 1 and 2 Power cut and protection devices in case of overload 1 Fig 3 Temperature Probe and Alarm Wiring CHAPTER 2 INSTALLATION www monitrol com...

Страница 16: ...Page 16 MST 1 Fig 4 Temperature Averaging Probe Connection Fig 5 Main Board Terminal Blocks Switches and Fuses www monitrol com...

Страница 17: ...s window displays the operational status of Stage 1 via one LED shown above in LED win dow When illuminated the LED indicates that the stage is operating The second LED lights to indicate a low or hig...

Страница 18: ...lays a blinking value Function 12 displays ambient temperature The 5 secondary functions are 2 Stage 1 Heating or cooling mode 3 Duty cycle period 9 Ramping minimum temperature limit 10 Low temperatur...

Страница 19: ...rom a minimum 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 Adjustor dial counterclockwise t...

Страница 20: ...duces equipment wear The temperature difference between the two thresholds is the differential The differential is adjusted in 0 5 degree increments from a minimum setting of 0 5 F 0 5 C to a maximum...

Страница 21: ...ts from a minimum setting of 5 up to a maximum setting of 100 corresponding to continuous operation Adjusting the duty cycle setting rotate the Selector dial to position 3 rotate the Adjustor dial cou...

Страница 22: ...decrease the ramping rate clockwise to increase it The ramping setting is displayed on the MST 1 NOTE When ramping is activated or enabled the main set point temperature cannot be manually adjusted Ra...

Страница 23: ...splay 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 dial to positio...

Страница 24: ...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 is recorded Hi is displayed Displaying the highest temperature recorded rotate the Selec...

Страница 25: ...yed to the nearest 0 5 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 41 0 F Lo is displayed If the temperature is higher than 1...

Страница 26: ...play if you want to use the stage 1 in cooling mode Adjusting the stage 1 heating or cooling mode rotate the Selector dial to position 12 rapidly rotate the Adjustor dial back and forth to enter secon...

Страница 27: ...ts from a setting of 1 minute to a maximum setting of 10 minutes Adjusting the Stage 1 duty cycle period rotate the Selector dial to position 12 rapidly rotate the Adjustor dial back and forth to ente...

Страница 28: ...inimum ramping setting rotate the Selector dial to position 12 rapidly rotate the Adjustor dial back and forth to enter secondary function mode rotate the Selector dial to position 9 rotate the Adjust...

Страница 29: ...djusted 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 to position 12 rapidly...

Страница 30: ...emperature alarm is adjusted in 0 5 degree increments from a minimum setting of 0 F 0 C to a maximum setting of 32 0 F 18 0 C Adjusting the high temperature alarm rotate the Selector dial to position...

Страница 31: ...ted Fan s or heater not operating Verify whether the fan LED is on If LED is on yet fan or heater is not operating verify wiring fan and fuse Refer Figure 5 for fuse location If fuse is blown replace...

Страница 32: ...30V Min Rating 10mA at 115V 20mA at 230V ALARM dry relay contact 2 A 30V AC DC SPECIFICATIONS Relay will not function properly if load is smaller than the minimum value Storage temperature 20 to 55 C...

Страница 33: ...e period 2min 2min 9 Minimum Ramping Limit 65 F 18 C 10 Lo Temperature Limit 9 F 5 C 11 High Temperature Alarm 20 F 12 C RECORD FORM 2nd Function 1 Main Set Point Temperature 77 F 25 C 2 Stage 1 Diffe...

Страница 34: ...Page 34 MST 1 www monitrol com...

Страница 35: ...ail lightning 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 man...

Страница 36: ...MAV MST 1M Ver 1 02 November 20 2012 www monitrol com...

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