Flash Codes Or Error Messages; Resets; Heat Anticipator Setpoints; Start-Up (Cooling) - York ZE036 Installation Manual

5188235-YIM-B-1016

Flash Codes or Error Messages

The UCB will initiate a flash code associated with errors within
the system. Refer to flash a code on the Simplicity Lite Control
(See Table 31) or sent error message to the LCD Smart
Equipment™ Control.

Resets

Remove the call for heating by lowering the thermostat setting
lower than the conditioned space temperature. This resets any
lock outs.

Heat Anticipator Setpoints

It is important that the anticipator setpoint be correct. Too high
of a setting will result in longer heat cycles and a greater
temperature swing in the conditioned space. Reducing the
value below the correct setpoint will give shorter "ON" cycles
and may result in the lowering of the temperature within the
conditioned space.
Table 25: Gas Heat Anticipator Setpoints
Gas Valve
Honeywell VR8204M
White-Rogers 36E36

Start-up (Cooling)

Prestart Check List
After installation has been completed:
1. Check the electrical supply voltage being supplied. Be sure
that it is the same as listed on the unit nameplate.
2. Set the room thermostat to the off position.
3. Turn unit electrical power on.
4. Set the room thermostat fan switch to on.
5. Check indoor blower rotation.
• If blower rotation is in the wrong direction. Refer to
Phasing Section in general information section.
• Check blower drive belt tension.
6. Check the unit supply air (CFM). See "CHECKING
SUPPLY AIR CFM" on page 50.
7. Measure evaporator fan motor's amp draw.
8. Set the room thermostat fan switch to off.
9. Turn unit electrical power off.
Operating Instructions
1. Turn unit electrical power on.
2. Set the room thermostat setting to lower than the room
temperature.
3. Compressor will energize after the built-in time delay (five
minutes).
56
Anticipator Setpoints
0.60 amp
0.54 amp
Post Start Check List
1. Verify proper system pressures.
2. Measure the temperature drop across the evaporator coil.
3. Measure the system Amperage draw across all legs of 3
phase power wires.
4. Measure the condenser fan amp draw.
Shut Down
1. Set the thermostat to highest temperature setting.
2. Turn off the electrical power to the unit.

Start-up (Gas Heat)

Pre-start Check List
Complete the following checks before starting the unit.
1. Check the type of gas being supplied. Be sure that it is the
same as listed on the unit nameplate.
2. Make sure that the vent and combustion air hoods have
been properly installed.
Operating Instructions
This furnace is equipped with an intermittent pilot
and automatic re-ignition system. DO NOT attempt
to manually light the pilot.
To Light Pilot And Main Burners:
1. Turn "off" electric power to unit.
2. Turn room thermostat to lowest setting.
3. Turn gas valve knob or switch to "on" position.
4. Turn "on" electric power to unit.
5. Set room thermostat to desired temperature. (If thermostat
"set" temperature is above room temperature, pilot burner
ignition will occur and, after an interval to prove pilot flame,
main burners will ignite).
To Shut Down:
1. Turn "off" electric power to unit.
2. Depress knob of gas valve while turning to "off" position or
position the switch to the "off" position.
Post-Start Check List (Gas)
After the entire control circuit has been energized and the
heating section is operating, make the following checks:
1. Check for gas leaks in the unit piping as well as the supply
piping.
Johnson Controls Unitary Products