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DocuSign Envelope ID: F1 E83634-E9F9-4E06-ACAF-1 F4185641 B55 <br /> Angel Barnes <br /> From: ron.lapann warren-hay.com <ron.lapann@warren-hay.com> <br /> Sent: Monday, February 21, 2022 5:56 PM <br /> To: Angel Barnes <br /> Cc: jennifer.warren warren-hay.com; ron.lapann warren-hay.com <br /> Subject: [EXTERNAL MAIL!] RE: PNW Emergency Services - Site Visits <br /> Angel,Just received email below from AAON,to address each item they noted Crank Case heater replacement, removal <br /> and weigh in of charge to both circuits I would anticipate a cost around $1,900.00 <br /> We can use that as a not to exceed if you would like for Warren Hay to perform the recommended actions. <br /> Let me know and we can order the crankcase heater and have it shipped and schedule time to shut down, recover and <br /> recharge and verify. <br /> Regards, <br /> Ron LaPann <br /> WARREN - HAY <br /> Mechanical Contractors <br /> Heating and Air Conditioning <br /> P.O.Box 818•Hillsborough,NC 27278 <br /> 919-732-4362 Office 919-612-6850 Mobile <br /> www.warren-hay.com <br /> Below are the notes on the unit. It appears to be a little low on refrigerant and have a faulty crankcase heater. The <br /> good news is that the compressor seems fine. <br /> February 14, 2022 <br /> Unit Check Out: <br /> Heat Strips working correctly <br /> Heat Wheel operating correctly <br /> Exhaust fan Controlling and Working Correctly <br /> Crankcase Heater—Not Energizing or Working, Causing Noise and in the Compressor on Cold Start- <br /> Ups. Crankcase Heater needs to be replaced. <br /> Compressor on Circuit One is Tripping on Low Suction—Charge appears to be low. <br /> Compressor on Circuit Two is operating at the low end of suction pressure. <br /> Both Refrigeration Circuits appear to be low on Refrigerant. Remaining Refrigerant needs to be removed and <br /> weighed and then reinstalled to the correct capacity. <br /> Thanks, <br /> JOHN BEAIRD, PE I Insight Partners <br /> () 0 <br /> 1 <br />