11-27-24 No heat in Chris’s office. After locating which thermostats feed which unit and also marking the rooftop unit, at this point. I then found RTU #3 controlled by Chris’s office thermostat. This is one of new unit. Found W1 nor W2 thermostat wires were not landed on the terminal block in the RTU. This was the same and RTU #2 , which is out in the library I landed the wires, tested both units in heat mode All the heating elements are pulling 28 Amps and working at this time. RTU#2 thermostat wasn’t bringing on W1 the first time I tested it after trying it again. The thermostat did work.
Still need mix air sensor and a pivot bracket from lennox
Need to return. Supplier did provide all needed parts
During this visit the system that serves the board room was locked out on an “EE” error code. This error indicates a clogged drain, failed condensation pump and/or a water level sensor failure. The indoor cassette was disassembled to access the drain/water pump and float switch. The drain was opened and cleared on both sides of the drain using a shop vac. A new 3/4” fern was installed for the purpose of cleaning the drain. After the drain line was cleared water was used to flush the drain pan. The system was restarted and the water level sensor and the drain pump were both checked for proper function. While the system was operating I set the time and date on the kids library thermostat. (System #5). After the thermostat was set I returned to the board room to check for leaks and confirmed that the system is pumping water by checking the water level in the evaporator drain pan. The system has returned to normal function. Thank you, Jon Tech notes: m/n 40MBCQ24 - - - 301 -
Replace (2) 60,000 btu Lennox package units with electric heat. Price includes (2) 60,000 btu Lennox package units with electric heat, humiditrol, economizers, power exhaust, factory disconnects, hail guards and curb adapters. Existing ductwork, room thermostats, humidity sensors and utilities will be reused.
((***/**((7(*66(((**********#&#&&#*##*#*#*# Rick, I left KC @ 12:15 and completed the call at 3:45 Please apply labor as needed *$&#&&#*@&@&@****&&*(*(*#*-$*#&#*#(*#*# During this visit I confirmed that the unit is freezing up due to low pressure at the evaporator coil. In addition to this the humiditrol control valve was checked and it was found that there was not a change of pressure in the evaporator coil if it was energized or not. The blower compartment was also checked and the airflow was comfirmed. The Y1 and Y2 control wires (A/C) were removed from the system to prevent a high humidity and possible water leaking into the building from an iced over coil. This unit is the unit that serves the lobby and the main librarian’s office. The indoor fan is still functioning. Thank you, Jon Tech notes: High side: 195.3psig (99.7f), liquid line temp 172, SC 0 Low side 56.5 (30.7f), suction line temp 70.7, SH 40 Across valve 152.7, 188, 191 (temps) Pressures through valve 195, 5