Thermal Solutions EVS series gas regulated boilers

2. System startup steps

Water injection and exhaust: Close the boiler water supply valve, exhaust in zones (drain to no bubbles for 30 seconds in each zone), fill the system to working pressure, and check for water leakage.

Power on and debugging: Turn on the power, confirm the direction and flow switch function of the circulation pump, and set TSBC ™ Controller (see Chapter 9), check the fan direction (test during pre blowing).

Flame debugging: Verify the ignition flame (blue stable, signal 1.5-5.0 VDC) and the main flame (uniform orange), adjust the air-fuel ratio (high flame O ₂ 4-6%, low flame O ₂ 5.5-7%) to ensure CO ≤ 400 ppm.

3. Conventional operations

Ignition command: via TSBC ™ Activate the controller or external thermostat, manual ignition is prohibited; When you smell gas, turn off all electrical appliances, stay away from the building, and contact the gas supplier/fire department.

Operation monitoring: Real time monitoring of outlet temperature, modulation rate, flame signal to ensure that safety controls such as safety valves, high limit temperature controllers (manually reset), and low water level cut-off devices are functioning properly.

Maintenance and troubleshooting

1. Maintenance cycle and content

Operational requirements for periodic maintenance projects

Daily inspection around the boiler, instrument readings, and flame observation to ensure that there are no flammable materials and no abnormal flames

Weekly igniter, flame signal, gas valve leakage testing, fuel valve closure testing, safety shutdown time

Monthly flue/condensate drainage, gas pressure interlock testing to clean condensate water and ensure pressure is within normal range

Half year instrument calibration, air filter replacement, circulation pump maintenance, filter cleaning with soapy water, pump maintenance according to manufacturer's specifications

Annual heat exchanger inspection, air-fuel ratio re inspection, safety valve testing, disassembly panel inspection for corrosion, and safety valve testing in accordance with ASME specifications

2. Common fault handling

Possible causes and solutions for alarm information

Low Water Level: The low water level cut-off device triggers a manual reset to check the water replenishment system

Low Water Flow circulation pump malfunction or pipeline blockage, confirm pump operation, clean filter

Fuel Limit gas pressure too high/too low reset pressure switch, check regulator/gas pipeline

High Temp Limit: If the water temperature exceeds the safe value, manually reset the high temperature controller and check the load/circulation system

FSG Fault Flame Protection Device Fault Reset Device, Check Igniter/UV Sensor

3. Spare parts and maintenance

Spare parts ordering: obtained through Thermal Solutions distributors (Lancaster warehouse), providing model and serial numbers; Key spare parts such as heat exchanger (EVS-500:103530-01), fan (EVS-750:81156018), and gas valve (V4295A series) require original factory parts.

Maintenance taboos: Do not disassemble the burner (easily damaged). Before electrical maintenance, all power sources must be cut off and locked. Replacement of controls must be consistent with the original factory model.

TSBC ™ Thermal Solutions Boiler Control

1. Core functions

Support boiler modulation control, multi boiler master-slave linkage (up to 8 units, RJ11 networking), outdoor temperature reset (adjust water temperature according to outdoor temperature, energy-saving), domestic hot water priority (DHWP), fault diagnosis (store 10 alarm records).

2. Key settings

Basic parameters: Warm Season Shutdown (WWSD) set point at 70 ° F, master-slave start triggering 90% modulation rate, stop triggering 25%, rotation period of 168 hours (balanced wear); The default PID parameters are local P=20, I=30, and remote P=20, I=30 (adjustable as needed).

Operation modes: manual mode (setting modulation rate from 0-100%), automatic mode (controlled by outlet/remote temperature), automatic switching to standby mode in case of sensor failure (such as remote sensor failure → outlet sensor control).