Carrier 50TJ016-028 specifications Heat Anticipator Settings, Unit Stage

Table 3 — Heat Anticipator Settings

UNIT	UNIT	kW*	STAGE 1	STAGE 2
50TJ	VOLTAGES
		26/34	.40	.66
	208/230-3-60	42/56	.66	.40
		56/75	.66	.66
	380-3-60	20	.40	.40
016-028		35	.40	.66
	460-3-60	32	.40	.40
		55	.40	.66
	575-3-60	80	.66	.66
		50	.66	.66

*Heater kW is based on heater voltage of 208 v, 240 v, 380 v, 480 v, and 575 v.

Fig. 16 — EconoMi$er Control Module

Adjustment Potentiometers

CONTROL MODULEACTUATOR

Fig. 17 — EconoMi$er Control Module Location

Step 8 — Install Outdoor-Air Hood — The same type of factory-installed hood is used on units with 25% air ventilation and units with an EconoMi$er.

NOTE: The hood top panel, upper and lower filter retainers, hood drain pan, baffle (028), and filter support bracket are secured opposite the condenser end of the unit. The screens, hood side panels, remaining section of filter support bracket, seal strip, and all other hardware are in a package located inside the return-air filter access panel (Fig. 18).

1.Attach seal strip to upper filter retainer. See Fig. 19.

2.Assemble hood top panel and side panels, upper filter re- tainer, and hood drain pan (Fig. 20).

3.Secure lower filter retainer and long section of filter sup- port bracket to unit. See Fig. 20. Leave screws loose on 028 units.

4.Slide baffle (size 028 unit) behind lower filter retainer and tighten screws.

5.Loosen sheet metal screws for base unit top panel located above outdoor-air inlet opening, and remove screws for hood side panels located on the sides of the outdoor-air inlet opening.

6.Match notches in hood top panel to unit top panel screws. Insert hood flange between unit top panel flange and unit. Tighten screws.

7.Hold hood side panel flanges flat against unit, and install screws removed in Step 5.

8.Insert outdoor-air inlet screens and spacer in channel cre- ated by lower filter retainer and filter support bracket.

9.Attach remaining short section of filter support bracket.

OUTDOOR AIR ENTHALPY SENSOR INSTALLA- TION — Perform the following procedure to install the out- door air enthalpy sensor (part no. CROUTENT001A00).

1.Remove the outdoor air temperature sensor cover. See Fig. 21. Save cover and screws.

2.Disconnect the wiring from the installed outdoor air tem- perature sensor. See Fig. 22.

3.Use a 1/4-in. nut driver to remove the 2 screws securing the outdoor air temperature sensor to the sheet metal.

4.Mount the outdoor air enthalpy sensor in the outdoor air temperature sensor location using the screws removed in Step 3.

5.Connect the outdoor air enthalpy sensor wiring harness to the EconoMi$er control module and sensor.

6.Re-install sensor cover saved from Step 1.

RETURN AIR TEMPERATURE SENSOR OR RETURN AIR ENTHALPY SENSOR INSTALLATION — Perform the following procedure to install the return air temperature sensor (part no. CRRETTMP001A00) or return air enthalpy sensor (part no. CRRETENT001A00).

1.Attach the sensor to the mounting bracket using 2 self- tapping 1/2-in. screws provided.

2.Mount the bracket to the inside of the return air opening flange using a 1/4-in. nut driver and 2 no. 6 sheet metal screws.

NOTE: The sensor must be mounted in an upright position.

3.Feed the sensor wiring through the bushing in EconoMi$er to secure wires.

4.Route sensor wiring harness from sensor to EconoMi$er control module. Secure wiring harness to the original har- ness using tie wraps.

5.Wire the sensor to the EconoMi$er control module. See Fig. 23 and 24.

Fig. 18 — Outdoor-Air Hood Component Location

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