Figure 1.32 Executing Run Test; Manual 2100-620A - Bard D36A2P/BLD.10304 Installation And Service Instructions Manual

3. Conduct Run Test
Execute a run test on each unit to verify the equipment
is functioning correctly.
On Bard-Link controller, navigate to the Run Test
TM
screen (Figure 1.32).
FIGURE 1.32
Executing Run Test
1) From the Main Menu screen, press the UP
or DOWN key to get to Technician menu, hit
ENTER key. (If not already on Main Menu
screen, press MENU key to get to Main Menu.)
2) Use Up or DOWN key to get to Service menu,
press ENTER key.
4. Completing Installation
Once all the installation steps have been completed, and system verification and run test results were satisfactory,
the installation can now be considered "complete." The Bard-Link
programmed with what is widely considered to be the most efficient operating parameters—see Table 1.3 on page
40. Further information on exact sequence of operation and advanced programming changes can be found in the
Service section of this manual.
Cool Weather Operation (Free Cooling Available):
Stage 1 Cooling 78°F – Lead unit free-cooling damper opens (Setpoint + Cooling Stage 1 Differential)
Stage 2 Cooling 79°F – Lag unit free-cooling damper opens (+ Cooling Stage 2 Differential)
Stage 3 Cooling 81°F – Lead unit compressor, damper will stay open if conditions are conducive for free cooling
(+ Cooling Stage 3 Differential)
Stage 4 Cooling 83°F – Lag unit compressor, damper will stay open if conditions are conducive for free cooling
(+ Cooling Stage 4 Differential)
Hi-Temp Alarm #1 85°F
Hi-Temp Alarm #2 90°F – Emergency ventilation initiates, both dampers open, both blowers run
75°F – All cooling stops, blowers stop (Setpoint -2°F)
Stage 1 Heating 58°F – Lead unit heat strip activates
Stage 2 Heating 56°F – Lag unit heat strip activates
Low-Temp Alarm 45°F
62°F – All heating stops, blowers stop
Warm Weather Operation (No Free Cooling Available):
Stage 1 Cooling 78°F – Lead unit compressor (Setpoint + Cooling Stage 1 Differential)
Stage 2 Cooling 83°F – Lag unit compressor (+ Cooling Stage 2, Stage 3 and Stage 4 Differentials)
Hi-Temp Alarm #1 85°F
Hi-Temp Alarm #2 90°F – Emergency ventilation initiates, both dampers open, both blowers run
75°F – All cooling stops, blowers stop (Setpoint -2°F)
3) Use Up or DOWN key to get to Control menu,
press ENTER key.
4) Cursor will be flashing in upper left corner of
screen. Press ENTER key to scroll to U1 Run
Test.
5) Press UP key to change 'No" on screen to
"Yes". Unit 1 will begin the run test.
Note: While initiating the run test on each
unit, use this opportunity to appropriately label
each system as "Unit 1" or "Unit 2."
6) After the Unit 1 run test ends, press ENTER
key to scroll to U2 Run Test.
7) Press UP key to change 'No" on screen to
"Yes". Unit 2 will begin the run test.
Run Test Approximate Timings (in Minutes)
Blower On: 0:00
Damper Open: 0:00 – 2:40
Closed: 2:41 – 4:57
Compressor On: 4:58
Off: 6:00
Heat On: 6:01
Off: 7:10
Blower Off: 8:19
PLC lead/lag controller has been pre-
TM

Manual 2100-620A

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