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DocuSign Envelope ID: 9826C043- 4C32- 49CD- A4CC- DC28ABAB7CE7 <br />SECTION 239500 - MULTI - INDOOR VRV SYSTEM <br />• Differential to be determined by BACnet building man- <br />agement system programming <br />iv. Changeover to heating mode shall occur when room tempera- <br />ture is less than or equal to the heating setpoint. <br />• Differential to be determined by BACnet building man- <br />agement system programming <br />V. Guard timer <br />• Upon changeover, guard timer will prevent another <br />changeover during this period. <br />• Guard timer should be ignored by a change of setpoint <br />manually from the BMS, Intelligent Touch Controller, <br />Remote Controller, or by schedule. <br />• Guard timer to be configured by BMS programming (30 <br />minute minimum recommended) <br />9) Setpoint limitation <br />The BMS shall utilize maximum and minimum cooling and heating setpoint to configure <br />upper and lower setpoints range. <br />10)System shutdown: <br />BMS should utilize System forced off point to execute emergency stop program regis- <br />tered on the iTM. <br />11)Restricted functions: <br />The following iTM functions shall be prohibited when the BACnet Server Gateway op- <br />tion enabled: <br />i. Interlocking Control. <br />ii. Emergency Stop (Emergency stop manual release). <br />iii. Power Proportional Distribution (PPD) option. <br />iv. BACnet Client option. <br />v. D -Net Service. <br />vi. External Management Point Registration <br />B. DCM601A72: iTM Plus Adapter (Optional — At Contractor's Discrection) <br />The iTM Plus Adapter shall provide control for all VRV, SkyAir indoor units, and Daikin <br />RA and FTXS indoor units with the use of the KRP92813132S RA Adapter. It shall be <br />capable of handling a maximum of 64 indoor unit groups and 128 indoor units connect- <br />ed to a maximum of 10 outdoor units. The iTM Plus Adapter is to be used in conjunc- <br />tion with intelligent Touch Manager. Up to 7 iTM Plus Adapters can be connected to a <br />single intelligent Touch Manager. This combination will provide intelligent Touch Man- <br />ager monitoring and control of up to 512 indoor unit groups, 1024 indoor units, and 80 <br />outdoor units. The iTM Plus Adapter shall support operations superseding that of the <br />local remote controller, system configuration, daily /weekly scheduling, monitoring of op- <br />eration status, and malfunction monitoring. <br />The controller wiring shall consist of a non -polar two -wire connection to the outdoor unit <br />at terminals F1 F2 (out -out). The iTM Plus Adapter is wall mounted and is used in con- <br />junction with the intelligent Touch Manager to maintain the optimal operation of the con - <br />Reece, Noland & McElrath, Inc. 239500-79 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />