SI0457 — YMC2 Mod B Software Changes V11

Document type	Service Information Letter
Document number	SI0457
Equipment	YMC2 Magnetic Bearing Centrifugal Chiller
Brand	YORK
File size	4.3 MB

Fault codes in this document

FAULTS & WARNINGS

Code / display	Meaning	Cause	Action	Page
WARNING - QUARTERLY SERVICE REQUIRED - CONTACT JCI	Quarterly Service Required Warning — Manual Reset Warning, no shutdown (Shutdown Type: None). Event Code: 330. GPIC Warning Code: 145.	Enable: Always. Allowed States: All. Bypass Time: None. Trip Time: Instantaneous. Set Event: Set when Days Since Last Quarterly Service >= 90 Days.	Release Event: Release after set. Manual reset required; Reset Password: 0726. Manual Reset of this warning shall be added into the Security Log with the message of “Quarterly Service Required Warning Reset”. Days Since Last Quarterly Service is set to 0 when this warning is cleared. Clear/Disable: Quarterly Service Warning is Disabled.	2
WARNING - YEARLY SERVICE REQUIRED - CONTACT JCI	Yearly Service Required Warning — Manual Reset Warning, no shutdown (Shutdown Type: None). Event Code: 331. GPIC Warning Code: 146.	Enable: Always. Allowed States: All. Bypass Time: None. Trip Time: Instantaneous. Set Event: Set when all of the following are true: • Days Since Last Yearly Service >= 365 Days • Operating Hours Since Last Yearly Service > 2,890 Hours (33% of a year’s run hours = 243650.33)	Release Event: Release after set. Manual reset required; Reset Password: 0726. Manual Reset of this warning shall be added into the Security Log with the message of “Yearly Service Required Warning Reset”. When this warning is cleared: Days Since Last Yearly Service is set to 0, Operating Hours Since Last Yearly Service is set to 0, and Purge Count Since Last Filter-Drier Replacement is set to 0. Clear/Disable: Yearly Service Warning is Disabled.	3
WARNING - 3 YEAR SERVICE REQUIRED - CONTACT JCI	3 Year Service Required Warning — Manual Reset Warning, no shutdown (Shutdown Type: None). Event Code: 332. GPIC Warning Code: 147.	Enable: Always. Allowed States: All. Bypass Time: None. Trip Time: Instantaneous. Set Event: Set when Days Since Last 3 Year Service >= 1095 Days.	Release Event: Release after set. Manual reset required; Reset Password: 0726. Manual Reset of this warning shall be added into the Security Log with the message of “3 Year Service Required Warning Reset”. Days Since Last 3 Year Service is set to 0 when this warning is cleared. Clear/Disable: 3 Year Service Warning is Disabled.	3
WARNING - CONDENSER - HIGH SMALL TEMP DIFFERENCE	Condenser High Small Temp Difference — Manual Reset Warning, no shutdown (Shutdown Type: None). Event Code: 13. GPIC Warning Code: 149.	Enable: Always. Allowed States: Running. Bypass Time: None. Trip Time: 30 Minutes. Set Event: Set when Condenser Small Temp Difference > Condenser Small Temp Difference Warning Threshold.	Release Event: Release when Condenser Small Temp Difference <= Condenser Small Temp Difference Warning Threshold. Manual reset required; Reset Password: 0726. Manual Reset of this warning shall be added into the Security Log with the message of “Condenser High Small Temp Difference Warning Reset”. Clear/Disable: Condenser High Small Temp Difference Warning is Disabled.	4

PANEL FAULTS & WARNINGS

Code / display	Meaning	Cause	Action	Page
MBC - HIGH ROTOR ELONGATION RATE	MBC High Rotor Elongation Rate Fault — Safety Fault, Immediate shutdown. Event Code: N/A. GPIC Safety Fault Code: 83.	Enable: When Rotor Elongation > 350 µm. Allowed States: Running, Soft Shutdown. Bypass Time: 1 Minute. Trip Time: 1 Minute / 3 Minutes (see set criteria). Set Event: Set when either of the following are true: • Rotor Elongation Rate > Rotor Elongation Fault Low Rate for 3 Minutes • Rotor Elongation Rate > Rotor Elongation Fault High Rate for 1 Minute	Immediate shutdown. Release Event: Release when set criteria is not true. Clear/Disable: Never. Reset Password: None. Special Handling: None.	9

VSD COOLING PROTECTION — FAULTS & WARNINGS

Code / display	Meaning	Cause	Action	Page
WARNING - VSD - HIGH HX APPROACH TEMPERATURE	VSD High HX Approach Temperature Warning — Manual Reset Warning, no shutdown (Shutdown Type: None). Event Code: N/A. GPIC Warning Code: 45.	Enable: Always. Allowed States: Running, Soft Shutdown. Bypass Time: 20 Minutes. Trip Time: 10 Minutes. Set Event: Set when VSD HX Approach Temp > Expected VSD HX Approach Temp + VSD HX Approach Temp Warning Offset.	Release Event: Release when set criteria not true. Reset Password: None. Special Handling: None. Clear/Disable: VSD Cooling Protection is Disabled.	12
VSD - HIGH HX APPROACH TEMPERATURE	VSD High HX Approach Temperature Fault — Safety Fault, Immediate shutdown. Event Code: N/A. GPIC Safety Fault Code: 94.	Enable: Always. Allowed States: Running, Soft Shutdown. Bypass Time: 20 Minutes. Trip Time: 10 Minutes. Set Event: Set when VSD HX Approach Temp > Expected VSD HX Approach Temp + VSD HX Approach Temp Fault Offset.	Immediate shutdown. Release Event: Release when set criteria is not true. Reset Password: None. Special Handling: None. Clear/Disable: VSD Cooling Protection is Disabled.	13

UNIT WARNING CODES (SC.4)

Code / display	Meaning	Page
6	WARNING - QUARTERLY SERVICE REQUIRED - CONTACT JCI	7
7	WARNING - YEARLY SERVICE REQUIRED - CONTACT JCI	7
8	WARNING - 3 YEAR SERVICE REQUIRED - CONTACT JCI	7
9	WARNING - CONDENSER - HIGH SMALL TEMP DIFFERENCE	7
45	WARNING - VSD - HIGH HX APPROACH TEMPERATURE	18

UNIT SAFETY FAULT CODES (SC.2)

Code / display	Meaning	Cause	Action	Page
83	MBC - HIGH ROTOR ELONGATION RATE			11
94	VSD - HIGH HX APPROACH TEMPERATURE			18

Every row above cites the page of this document it came from, and each one is re-read against that page by an automatic check before publication.

Manufacturer document, published here as reference material for equipment we supply. The original lives at docs.johnsoncontrols.com. The rights holder may ask us to take it down — we will.