Lennox International Inc Zone Control Panel, LZP-2 Pin Jumper Settings see Figure, LEDs

Pin Jumper Settings (see Figure 5)

FIGURE 5 – PIN JUMPER SETTINGS

ELECTRIC/GAS: If electric heat is to be used, move the jumper to the “ELECT” position. This will turn on the fan (G output terminal) with a heat call (W output terminal). If the jumper is in the “GAS” position, it is assumed that the heating equipment will control the fan operation.

NO PURGE / PURGE: If the NO PURGE / PURGE jumper is moved to the “PURGE” purge position, the G terminal will remain energized for a one minute purge delay following the completion of a cooling call. If the jumper is moved to the “NO PURGE” position, the G terminal will de-energize immediately following the completion of a cooling call. The NO PURGE setting is designed for use with systems where the furnace or air handler has a built in fan purge. The NO PURGE damper hold time is longer than the PURGE setting due to the Lennox furnaces installer settable maximum blower off delay of 3 minutes. The following chart details the zone panel outputs and damper hold times when a heating or cooling call is satisfied:

DISCHARGE AIR SENSOR HT-140/160: This jumper controls the temperature at which the heating equipment will cut out to prevent overheating. For a high limit temperature of 140°F, move the jumper to the “140” position. For a high limit temperature of 160°F, leave the jumper in the “160” position.

IMPORTANT: The temperature sensor is required. If a short or open circuit is detected between the Discharge Air Sensor (DAS) terminals, the control panel will only respond to Zone 1 and the dampers will not close.

DISCHARGE AIR SENSOR CL-45/40: This jumper controls the temperature at which the cooling equipment will cut out to prevent freezing the indoor coil. For a low limit temperature of 45°F, leave the jumper in the “45” position. For a low limit temperature of 40°F, move the jumper to the “40” position. To maintain optimum operation, it is recommended to leave this setting at “45”.

Jumper Settings	Mode		Purge		No Purge
		Output	Damper Hold Time	Output		Damper Hold Time
Heat/Cool	Cooling	G1	1 minute	No G,		3-1/2 minutes
Gas	Heating	No G	1 minute	No G,		3-1/2 minutes
Heat/Cool	Cooling	G1	1 minute	No G,		3-1/2 minutes
Elect.	Heating	G1	1 minute	No G,		3-1/2 minutes

1The G terminal will remain energized for 1 minute.

LEDs

POWER – Blinks during normal operation. Starts to blink approximately 6 seconds after power up.

G, Y and W – Lights when respective equipment outputs are energized. The W LED will flash if the heating high temperature limit has been reached. The Y LED will flash if the cooling low temperature limit has been reached.

ZONE 1 Damper and ZONE 2 Damper – Lights when the Normally Open (NO) damper terminal for that zone is energized (i.e. LEDs show which zones are NOT receiving conditioning when the HVAC equipment is operating).

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