Figure 1 Multi-Tec Wall-Mount Unit Model Nomenclature - Bard MULTI-TEC W42ACE Series Service Instructions Manual

Figure 6 Last 24 Hour Tracking ...................... 8
Figure 7 Last 24 Hour Tracking ...................... 8
Figure 8 Software Version Information ............ 8
Figure 9 Alarm Log Screen Breakdown............ 8
Figure 10 Unit Configuration ........................... 9
Figure 11 Executing Self Test ........................ 10
Figure 12 Entering Model/Serial Number ........ 10
Figure 13 Alarm Screen Breakdown ................ 11
Figure 14 Clearing Alarms ............................. 11
Figure 15 Clearing Alarm Logs ....................... 11
Figure 16 Adjusting Mixed Air Alarm Values .... 12
Figure 17 Adjusting Damper Alarm Values ...... 12
Figure 18 Adjusting Freeze Alarm Values ........ 13
Figure 19 Blower Speeds .............................. 14
Figure 20 Balanced Climate Enable/Disable .... 15
Figure 21 Wall-Mount Unit Cooling Staging ..... 15
Figure 22 Adjusting Cooling Differential Values .. 16
Figure 23 Adjusting Heating Differential Values . 16
Figure 24 Wall-Mount Unit Heating Staging .... 16
Figure 25 Economizer A4 Screen ................... 17
Figure 26 Economizer A5 Screen ................... 17
Figure 27 Adjusting Damper Modulation
Values .......................................... 17
Figure 28 Making Adjustments to Unit Disable .. 18
Figure 29 Dehumidification Control ................ 19
Figure 30 Wall-Mount Unit Control Board ....... 20
Figure 31 8201-169 Compressor Control
Module ......................................... 25
Figure 32 Fan Blade Setting .......................... 26
Figure 33 Front Control Panel Cover ............... 29
W 42
MODEL SERIES
CAPACITY
42 - 3½ Ton
48 - 4 Ton
60 - 5 Ton
72 - 6 Ton
A - A/C
E - PLC Logic Board w/Electric Reheat
M - PLC Logic Board w/Mechanical Dehumidification 
A - 230/208/60/1
B - 230/208/60/3
C - 460/60/3
D - 240/220/50/1
 Reference Supplemental Instructions 7960-864
for complete details.
 Having "B" in this position in the model number
disables all economizer function. Emergency vent will
still operate when "B" is in this position.
MULTI-TEC W42-72AC Wall-Mount Unit Model Nomenclature
A C P A
REVISION
P - PLC Logic Board
VOLTS & PHASE
E - 240/220/50/3
or 220/200/50/3
F - 415/380/50/3
Q - 575/60/3
KW
VENTILATION OPTIONS
B - Blank-off Plate 
5 or E - Economizer
Figure 34 Removing Left Filter ...................... 29
Figure 35 Removing Second Filter ................. 29
Figure 36 Filter Tabs in Up Position ............... 29
Figure 37 Bend Filter Tabs Down ................... 29
Figure 38 Remove Four Screws ...................... 30
Figure 39 Re-Install Filter Support Brackets
into Lower Slots ............................. 30
Figure 40 Re-Install Screws and Bend Tabs Up .. 30
Figure 41 Install Right 2" Filter ..................... 30
Figure 42 Install Left 2" Filter ....................... 30
Figure 43 Dirty Filter Switch and Dirty Filter
Indicator Light/Reset Switch ........... 31
Figure 44 Adjusting Filter Switch ................... 32
Figure 45 Motor Connections ......................... 33
Figure 46 Motor Connections ......................... 34
Figure 47 8301-057 Switch Terminals ........... 35
Figure 48 8301-067 Sensor Dip Switches ...... 35
Table 1 LC1000/TEC-EYE Passwords
(Defaults) ....................................... 7
Table 2 Wall-Mount Unit Status Messages ..... 7
Table 3 Software Versioning Guide ................ 9
Table 4 Unit Control Board Terminals .......... 21
Table 5 MULTI-TEC Cooling Pressures ......... 23
Table 6 W42-72AC* Optional Accessories ... 27
Table 7 8301-067 Sensor: Temperature/
Resistance .................................... 36
Table 8 8301-067 Sensor: Humidity/Voltage .. 37
Table 9 8408-044 Sensor: Temperature/
Resistance Curve J ......................... 38
Table 10 Wall-Mount Unit Alarm Index .......... 39
FIGURE 1
10 5 X X
FILTER OPTIONS
X - 1" Throwaway (Standard)
W - 1" Washable
P - 2" Pleated (MERV 8)
X X E
CONTROL MODULES
E - Low Ambient Control
C - Low Ambient Control
& Crank Case Heater
COIL OPTIONS
X - Standard
1 - Phenolic Coated Evaporator
2 - Phenolic Coated Condenser
3 - Phenolic Coated Evaporator
and Condenser
4 - Coated Coils and Condenser
Section
5 - Coated Coils, Inside and
Outside of Unit
PLACEHOLDER
X for future use
COLOR OPTIONS
X - Beige (Standard) 8 - Dark Bronze
1 - White S - Stainless Steel
A - Aluminum
4 - Buckeye Gray
5 - Desert Brown
M - 2" Pleated (MERV 11)
N - 2" Pleated (MERV 13)
Manual 2100-725C
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