Section 4

1.With proper voltages observed thus far and modulator responding correctly, wire the system (see Figure 1), except have TS144 connected in place of jumper. Set A1044 MIN temperature selector at least 10°F above outdoor temperature. Set A1044 MAX temperature selector at mid-range. Heater is now under control by TS144 Discharge Air Monitor.

2.Turn Test-Potentiometer to maximum resistance. Delivered air temperature should be per A1044 MAX temperature setting. Turn Test-Potentiometer to minimum resistance. Delivered air temperature should be per A1044 MIN temperature setting. If proper delivered air temperatures are observed, the problem is identified with the space temperature sensing and/or temperature selecting components and circuits. See Troubleshooting Guide. If proper delivered air temperatures are not observed, check calibration. See Troubleshooting Guide.

MIN

MAX

Section 5

1.After test, remove all test equipment and reconnect all components.

Figure 1

Figure 2

SECTION XI - REPLACEMENT PARTS

Replacement parts may be ordered from the factory. All warranty parts will be shipped freight allowed from the factory via standard ground service. Warranty parts must be returned prepaid within 30 days. Credit will be issued if part is complete, defective and returned on time.

Dealer/Contractor Name:

City:

When parts are ordered, MODEL NUMBER, SERIAL NUMBER, FACTORY ORDER (F.O.) AND PART NUMBERS are required. Belts, filters and fuses are not covered under warranty.

Address:

State:Zip:Ph:

23