Page 2 - CONTENTS
Manual 2100-563C Page 2 of 40 CONTENTS Figures Figure 1 Controller Connections 1-Stage (WA/WL, W**A/W**L Series) A/C w/No Economizers ..... 17 Figure 2 Controller Connections 2-Stage (WA*S/WL*SSeries) A/C - No Economizers ................ 18 Figure 3 Controller Connections 1-Stage (WA/WL, W**A/W**L ...
Page 3 - Getting Other Information and Publications
Manual 2100-563C Page 3 of 40 Getting Other Information and Publications These publications can help you install the airconditioner or heat pump. You can usually find these atyour local library or purchase them directly from thepublisher. Be sure to consult current edition of eachstandard. Standard ...
Page 4 - Master Controller
Manual 2100-563CPage 4 of 40 SHIPPING DAMAGE Upon receipt of equipment, the carton should be checkedfor external signs of shipping damage. If damage isfound, the receiving party must contact the last carrierimmediately, preferably in writing, requesting inspectionby the carrier’s agent. GENERAL Thes...
Page 5 - MOUNTING THE CONTROLLER; REMOTE
Manual 2100-563C Page 5 of 40 SPECIFICATIONS/FEATURES FOR BASICCONTROLLER MC4000 Basic Controller •Input power: 18-32 VAC, 60/50Hz, power is supplied fromA/C #1 and/or A/C #2•Isolation circuitry: no line or low voltage phasing required•Backup power: connection for -24 VDC or -48 VDC (-20 to -56V) ma...
Page 6 - All alarm and output relays are dry contacts rated; MC4000 CONTROLLER CONNECTIONS; Located on Main Controller Board; Sensors are
Manual 2100-563CPage 6 of 40 SPECIFICATIONS/FEATURES FORALARM BOARDS MC4000-A w/Optional Base Alarm Board(Inputs/Outputs) NOTE: If this alarm board was not originally factoryinstalled, it can be field-installed at anytime. Bardpart number is AB3000-A. MC4000-B w/Enhanced Version Alarm Board(Addition...
Page 7 - The following delays are built in for both cooling & heating:; Stage 3; Stage 4; For cooling Stages 1 and 2, the stage LED will
Manual 2100-563C Page 7 of 40 LOW VOLTAGE FIELD WIRING The MC4000 is powered from the air conditioners that itis controlling, 24 VAC (18-32V) low voltage only. Circuitry in the MC4000 isolates the power supplies ofthe two air conditioners so that no back feeds or phasingproblems can occur. Additiona...
Page 8 - GENERAL PROGRAMMING OVERVIEW; MC4000 CONTROLLER BUTTONS AND FUNCTION; Comfort Button; CONTROLLER PROGRAMMABLE FEATURES AND DEFAULT SETTINGS
Manual 2100-563CPage 8 of 40 GENERAL PROGRAMMING OVERVIEW MC4000 CONTROLLER BUTTONS AND FUNCTION On/Off Button 1. Press and release the On/Off button to turn On controller, 4-character display will illuminate and Lead unit LED will light. 2. Press and release the On/Off button to turn Off controller...
Page 9 - HUMIDITY CONTROL OPTION; This function is not available if controller is; CAUTION
Manual 2100-563C Page 9 of 40 HUMIDITY CONTROL OPTION Note: This function is not available if controller is configured for heat pump. The standard air conditioning system can be adapted toperform dehumidification control by addition of asimple humidity controller that closes-on-rise, and isconnected...
Page 11 - Heat pumps cannot be operated in Non-Alternating
Manual 2100-563C Page 11 of 40 6. 2-Stage Compressor Units with NewerECONWMT Economizers (See Note A) 1 st stage cooling set point is the setting (SP) input into the controller. Factory default is 77F (25C). On a callfor cooling the blower of the lead unit will come onimmediately (if not already on ...
Page 13 - Economizers in ECONWMT-Series are available; HEATING SEQUENCE OF OPERATION; All heating sequences for air conditioners with
Manual 2100-563C Page 13 of 40 5. 2-Stage Compressor Units with NewerECONWMT Economizers (See Note A) 1 st stage cooling set point is the setting (SP) input into the controller. Factory default is 77F (25C). On a call forcooling the blower of the lead unit will come onimmediately (if not already on ...
Page 15 - USER PAGE
Manual 2100-563C Page 15 of 40 USER PAGE 1. The designated Admin person can assign up to 9additional users and set-up as Admin, Write orRead authority. 2. User Name and password must be assigned, eachmust be at least 3 characters long, and are casesensitive. 3. Only “Admin” can add, change or delete...
Page 16 - CONTROLLER WIRING; Locking and Unlocking the MC4000 Controller:; GENERATOR RUN FEATURE; The shelter DC battery power must
Manual 2100-563CPage 16 of 40 CONTROLLER WIRING The MC4000 can be used for controlling two (2) airconditioners with or without economizers. It can also beconfigured for two (2) heat pumps without economizers.Units with economizers will connect differently thanunits without economizers; therefore, it...
Page 17 - TABLE 1; FIGURE 1
Manual 2100-563C Page 17 of 40 m e t s y S e p y T l e d o M s e i r e S o N r e z i m o n o c E B - 0 0 0 4 C M r o A - 0 0 0 4 C M n o i t a c i n u m m o C h t i w r e z i m o n o c E o N – d r a o B M F I E r e d l O o N — r e z i m o n o c E n o i t a c i n u m m o C d r a o B M F I E r e d l O...
Page 19 - FIGURE 3
Manual 2100-563C Page 19 of 40 FIGURE 3 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS – NO ECONOMIZER WITH ALARM BOARD & CB4000 COMMUNICATION BOARD
Page 21 - FIGURE 5
Manual 2100-563C Page 21 of 40 FIGURE 5 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS WITH OLDER STYLE EIFM ECONOMIZERS
Page 23 - FIGURE 7
Manual 2100-563C Page 23 of 40 FIGURE 7 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS WITH OLDER STYLE EIFM ECONOMIZERS AND WITH ALARM BOARD & CB4000 COMMUNICATION BOARD
Page 25 - FIGURE 9
Manual 2100-563C Page 25 of 40 FIGURE 9 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS WITH (ECONWMT) ECONOMIZERS
Page 26 - CONTROLLER CONNECTIONS
Manual 2100-563CPage 26 of 40 FIGURE 10 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS WITH (ECONWMT) ECONOMIZERS
Page 31 - ALARM WIRING; All alarm and output relays are Form C (SPDT); ND STAGE COOLING ALARM; For units with 2-stage compressors, the dual stage; REFRIGERANT PRESSURE ALARMS; The E and F wiring connections at the 24V
Manual 2100-563C Page 31 of 40 ALARM WIRING Alarm relays can be wired for NO (close on alarm) orNC (open on alarm) strategy. Alarm relays can be used individually if there areenough available building alarm points, or can bearranged into smaller groups or even a single group sothat all alarm capabil...
Page 32 - ALARM BOARD CONNECTIONS
Manual 2100-563CPage 32 of 40 FIGURE 15 ALARM BOARD CONNECTIONS FOR NORMALLY CLOSED "NC" OPEN-ON-ALARM STRATEGY IMPORTANT! LED display board is shipped loose to protect it from possible damage during installation of the wiring to main controller board and/or the alarm board. It is polarity s...
Page 34 - PROGRAMMING INSTRUCTIONS; push and hold
Manual 2100-563CPage 34 of 40 PROGRAMMING INSTRUCTIONS To swap lead and lag unit positions, press theADVANCE button. To enter the Program mode, press the PROGRAMbutton and release it when the message PROG appearson the display. When in Program mode, the DOWN andUP arrows are used to scroll through t...
Page 35 - Comfort Mode; Operating Instructions; Cooling; Alarms; Solid State Dual Unit Lead Lag Controller; Series; Program Menu
Manual 2100-563C Page 35 of 40 7961-731 Comfort Mode Press “Comfort” button once to reset to 72F/22CCooling and 68F/20C Heating for 1-hour. Displaywill flash during override period. Press 2nd-time tocancel during override if desired, or controller will automatically revert to selected SP after 1-hou...
Page 36 - PARTS LIST DESCRIPTION DIAGRAM
Manual 2100-563CPage 36 of 40 FIGURE 17 PARTS LIST DESCRIPTION DIAGRAM MIS-2954 12 9 3 4 5 7 6 11 2 1 10 8
Page 37 - Parts List
Manual 2100-563C Page 37 of 40 . g w D . o N . o N t r a P n o i t p i r c s e D 0 0 0 4 C M A - 0 0 0 4 C M C A - 0 0 0 4 C M B - 0 0 0 4 C M C B - 0 0 0 4 C M A - 0 0 0 3 B A B - 0 0 0 3 B A 0 0 0 4 B C 1 4 - 3 4 3 - 7 2 1 x o B l o r t n o C X X X X X 2 0 4 0 - 2 1 6 8 d r a o B r e ll o r t n o ...
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