The offline reference and toolkit for the people who keep the lights on: critical facilities technicians, operations engineers, and commissioning agents in colocation and hyperscale data centers. Digitize the Method of Procedure and execute it step by step, initial and timestamp every line, capture photos and readings, sign, and export a PDF record for the operations file. Power and cooling calculators with worked steps, a liquid cooling field reference, and guided troubleshooting. Data halls are radio hostile and access controlled, so everything works with zero connectivity.
In a data hall you cannot touch a critical component without an approved procedure, and every line must be initialed as it is completed. RackWatt puts that whole workflow, and the references around it, in your pocket, no signal required.
Build or import a Method of Procedure, then execute it. Initial every line with an automatic timestamp, add notes, photos, and readings, and finish with technician, peer reviewer, and manager signatures. A pre execution checklist confirms authorization, risk, the current redundancy state, and the back out plan before you start. Pause or abort with a reason and a hard back out prompt. Export a signed PDF record.
UPS battery runtime, UPS sizing and loading, generator fuel runtime, three phase power, rack power density, power usage effectiveness, redundancy modeling for N, N plus 1, 2N, and 2N plus 1, arc flash awareness, airflow and heat load, delta T targets, airflow by density, and refrigeration. Every result shows the formula, the source, and the intermediate steps.
The underserved field reference for AI density racks: direct to chip cold plates, manifolds, Coolant Distribution Units, and rear door heat exchangers, with the hard won detail that mechanical seal life scales with discharge pressure. Coolant flow, pressure, chemistry, and leak detection, all in one place.
Decision trees for utility loss and a generator that will not start, a unit on battery or bypass, breaker trips, high rack inlet temperature, a cooling unit down, abnormal delta T on a liquid loop, leak alarms, and alarm storm triage. Safety critical steps render red and stop to defer to the site procedure and arc flash study.
Standard and Emergency Operating Procedure libraries with fast search, commissioning levels one through five, rounds and readings with out of range flagging, preventive maintenance by asset class, work orders, incident and near miss reports, lockout tagout and energized work permits, arc flash and PPE assessments, and the change and risk record. Route any document to preset recipients.
Arc flash and NFPA 70E awareness, lockout tagout, energized work, and emergency power off, surfaced across the app. The redundancy calculator answers the real question before you pull a module: if I remove this, do I break redundancy, and what is left.
Data halls are radio hostile and access controlled. Every reference, calculator, form, and tree ships inside the app. Outgoing email queues until connectivity returns.
A high contrast interface for cold aisles and dim halls, big tap targets, big readable numbers, and minimal typing, usable one handed.
No account, no server, no analytics, no ads, no tracking. Your procedures, records, and site data stay on your device. The only network use is the App Store and the emails you choose to send.
RackWatt is a field aid, not a substitute for the site approved procedures, the manufacturer manuals, NFPA 70E, the site arc flash study, or the engineer of record. Calculations are estimates to be verified by a qualified person.