background image

 

Sensor Installation 

 

If the unit is equipped with freeze sensor, it 
can  be  found  attached  to  the  leaving  water 
pipe as shown in 

Figure 4

 

 

Figure  4 - Freeze Sensor's Previous Location, Older 
Versions

 

 
 

 

 

 

The new controller has a different trip point 
for sensing freeze condition, and therefore 
the freeze sensor must be relocated to the 
refrigerant line as shown in 

Figure 5

 

 

Figure 5 - Freeze Sensor's New Location 

 
Once  the  sensor  has  been  relocated  use 
wire  ties  and  cork  tape  to  secure  and 
insulate sensor as shown below in 

Figure 6

Figure 7

, and 

Figure 8

 
If  this  is  a  new  install  (no  previous  sensor) 
the wires must be led into the electrical box 
and  connected  to  the  UPM  across  the 
FREEZE connections as shown in 

Figure 9

 

 

 
 

IMPORTANT: 
If unit is equipped with factory installed 
DDC, two sensors can be found. Make 
sure that the DDC leaving water sensor 
remains in place as it may cause 
nuisance alarms in the building 
automation system.  

 
 
 

Содержание 8733 800-259

Страница 1: ...1 8733 800 259 KIT Replacement Kit 641 176 641 187 641 225 641 244 IOM...

Страница 2: ...THE UPM CONTROLLER 3 SPECIFICATIONS 4 KIT INCLUDES 5 INSTALLATION PROCEDURE 5 Remove Old Board 5 Mounting holes 5 Wiring Installation 6 Sensor Installation 8 FINAL PROCEDURES 10 Table of Contents 2...

Страница 3: ...ensate overflow protection if sensors are installed The controller is programmed and it is backwards compatible for most functions of its earlier versions This controller can be used as replacement fo...

Страница 4: ...purposes dry contact Normally Open NO Inputs Four 4 inputs Dedicated inputs for High Pressure Switch HPC Low Pressure Switch LPC Freeze Sensor FREEZE 10 K 77F Thermistor Condensate Overflow Sensor CON...

Страница 5: ...Remove Old Board 1 Locate existing UPM in unit electrical box 2 Verify old part number on the old board as one of the four listed on page 3 3 Take a picture or LABEL all wires currently present and a...

Страница 6: ...circuit board as shown in Figure 2 2 Secure controller to unit by using four 1 long 6 screws along with the tubular sleeves Figure 2 Plastic Stand Off Wiring Installation Reconnect the wires using th...

Страница 7: ...an existing screw that secures an existing component IMPORTANT Ground Do not forget to ground the board If a connection is not available ground the terminal by Avoid sharp edges on unit cabinet durin...

Страница 8: ...5 Figure 5 Freeze Sensor s New Location Once the sensor has been relocated use wire ties and cork tape to secure and insulate sensor as shown below in Figure 6 Figure 7 and Figure 8 If this is a new...

Страница 9: ...Figure 6 Sensor with Wire Ties Figure 7 Wire Tied Sensor with Cork Tape Figure 8 Final Sensor Installation with Insulating Tape 9...

Страница 10: ...and their corresponding faults are shown 1 High Pressure Switch 2 Low Pressure Switch 3 Freeze Protection 4 Condensate Sensor 5 Brownout Protection A COND error will result in a hard lockout requiring...

Страница 11: ...11...

Страница 12: ...12 Figure 9 UPM Typical Wiring Components...

Страница 13: ...13 Figure 10 UPM Operation Flow Chart...

Страница 14: ...14 6720220404 REV 8 12...

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