Symptom

Motor starts but runs erratically

%Varies up and down or intermittent

%"Hunts" or puffs" at high CFM (speed)

%Stays at low CFM despite sysstem call for cool or heat CFM

%Stays at high CFM

%Blower won't shut off

SYMPTON

Excessive noise

%Air Noise

%Size the equpment wisely

%Check orientation before inserting motor connectors

CAUSE / PROCEDURE

%Check line voltage for variation or "sag"

%Check low voltage connections (G, Y, W, R, C) at motor; unseated pins in motor harness connectors

%Check "Bk" for erratic CFM command (in variable speed applications

%Check out system controls - thermostat?

%Perform Moisture Check

%Does removing panel or filter reduce "puffing"?

–Reduce restriction

–Reduce maximum airflow

%Check low voltage (thermostat) wires and connections

%Verify fan is not in dalay mode - wait until delay is complete

%"R" missing / not connected at motor Perform motor / control replacement check

%"R" missing / not connected at motor

%Is fan in dalay mode? - wait until delay time complete

%Current leakage from controls into G, Y or W?

–Check for Triac switched thermostat or solid state relay

CAUSE / PROCEDURE

%Determine if it is air noise, cabinet, duct or motor noise . Interview customer if necessry.

%High static creating high blower speed?

–Is airflow set properly?

–Does removing filter cause blower to slow down? Check / replace filter

–Use low pressure drop filter

–Check / correct duct restirctions

DON'T

%Oversize system then compensate with low airflow

%Plug in power connector backwards

%Force plugs

MOISTURE CHECK PROCEDURE

%Connectors are oriented "down"

%Arrange harnesses with "drip loop" under motor

%Condenste drain plugged?

%Check for low airflow (too much latent capacity)

%Check for undercharged condition

%Check and plug leaks in reutrn ducts and cabinet

COMFORT CHECK PROCEDURE

%Check proper airflow settings

%Low static pressure for lowest noise

%Set low continuous fan CFM

%Use humidistat and 2-speed cooling units

%Use zoning controls designed for ICM that regulate CFM

%Thermostat in bad location?

Manual 2100-416 Page 23

QC501 specifications

The Bard QC501 is an innovative piece of equipment designed specifically for quality control in various manufacturing processes. Known for its precision and efficiency, the QC501 serves multiple industrial sectors, including pharmaceuticals, food and beverage, cosmetics, and chemical manufacturing.

One of the standout features of the Bard QC501 is its state-of-the-art measurement technology. It utilizes advanced sensors and automated systems to ensure highly accurate readings. This precision is critical for industries where even the smallest deviation can result in significant issues, such as compromised product safety or regulatory violations.

The QC501 incorporates a user-friendly interface that simplifies operation for technicians and quality control personnel. Its touchscreen display provides real-time data, allowing users to monitor processes effectively and make on-the-fly adjustments as needed. This responsiveness ensures that production standards are consistently met, enhancing overall efficiency.

Another notable characteristic of the Bard QC501 is its data logging capabilities. The device is equipped with comprehensive software that records, analyzes, and generates reports on quality metrics. This feature is invaluable for facilitating thorough audits and maintaining compliance with stringent industry regulations. By providing a digital trail of quality data, the QC501 empowers companies to demonstrate their commitment to quality assurance.

In terms of connectivity, the QC501 is designed to integrate seamlessly into existing production lines. It offers multiple connectivity options, such as Ethernet and USB ports, making it compatible with various systems. This flexibility allows businesses to enhance their existing quality control processes without a complete overhaul of their infrastructure.

Durability is another critical aspect of the QC501. Manufactured with robust materials, it is designed to withstand the rigors of industrial environments. This reliability reduces downtime due to equipment failure, ensuring that production schedules remain on track.

In summary, the Bard QC501 stands out for its precision measurement technology, user-friendly interface, comprehensive data logging, seamless connectivity, and rugged durability. This combination of features makes it an essential tool for industries striving to maintain high quality standards while optimizing production efficiency. Investing in the Bard QC501 is a proactive step toward enhancing overall product quality and ensuring compliance with regulatory standards.