All installations and services must be performed by qualified service personnel.

IV. STARTING THE UNIT

A. SEQUENCE OF OPERATIONS

AT ANY TIME THE

 

 

 

CONTINUOUS SAFE OPERATION CHECK

GAS VALVE IS

 

 

 

IF FLAME SIMULATION CONDITION

NOT ENERGIZED

 

 

PRESENT OR ROLL-OUT SWITCH OPENS, SYSTEM

 

 

ENERGIZES INDUCER FAN FOR 15 SECONDS AND CIRCULATOR BLOWER AT

START

 

 

HEATING SPEED UNTIL SITUATION CORRECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THERMOSTAT CALLS FOR

 

 

 

 

 

HEAT, CONTACTS CLOSE

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL BOARD ENERGIZED,

 

 

 

INDUCER ENERGIZED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRESSURE SWITCH SENSES

 

PRESSURE SWITCH SENSES

 

 

NEGATIVE PRESSURE(NO DRAIN BLOCKAGE)

ADEQUATE DIFFERENTIAL PRESSURE,

 

 

CONTACTS CLOSE

 

 

CONTACTS CLOSE

 

 

 

 

(CDB1 SERIES ONLY)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

START

TRIAL

FOR

IGNITION

POWER IS APPLIED TO

 

POWER INTERRUPTION

THE SILICON NITRIDE

 

SYSTEM SHUTS OFF,

IGNITOR. IGNITOR

 

RESTARTS WHEN POWER

WARM-UP IS 20 SECONDS.

 

IS RESTORED.

AFTER IGNITOR WARM-UP,

THE GAS VALVE IS

ENERGIZED TO OPEN

 

 

 

 

 

 

 

 

FLAME MUST BE DETECTED

 

IF FLAME IS NOT DETECTED, THE

 

WITHIN 4 SECONDS IF

 

GAS VALVE IS DE-ENERGIZED,

 

FLAME IS DETECTED, THE

 

THE IGNITOR IS TURNED OFF AND

 

 

DELAY-TO-FAN-ON TIME

 

THE CONTROL BOARD CONTROL GOES

 

BEGINS (45 SECONDS)

 

INTO "RETRY" SEQUENCE.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

34

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Image 40
Thermo Products CHB1-125N, CHB1-75N, CHB1-100N, CBD1-75N, CBD1-100N, CBD1-125N, CBD1-50N, CHB1-50N CDB1 Series only
Page 39 Page 41

CHB1-50N, CBD1-50N, CBD1-125N, CBD1-100N, CBD1-75N specifications

Thermo Products offers a range of high-performance heating and cooling solutions tailored to meet the demands of both residential and commercial applications. Among their innovative offerings are the CHB1-50N, CBD1-75N, CHB1-100N, CHB1-125N, and CBD1-100N models, which are designed to provide efficient temperature control while maximizing energy savings.

The CHB1 series, including the CHB1-50N, CHB1-100N, and CHB1-125N, features advanced heating technologies that allow for rapid heating response times. These units are equipped with high-efficiency heat exchangers that ensure optimal heat transfer with minimal energy consumption. A key characteristic of these models is their ability to operate quietly, making them ideal for settings where noise reduction is a priority.

In comparison, the CBD1 series, specifically the CBD1-75N and CBD1-100N, focuses on cooling capabilities that are equally impressive. These units utilize state-of-the-art cooling compressors designed to provide powerful cooling while maintaining low operational costs. The CBD1 models incorporate environmentally friendly refrigerants, ensuring compliance with the latest environmental regulations, which appeals to environmentally conscious customers.

All models in this lineup are designed with user friendliness in mind, featuring intuitive digital controls that allow for precise temperature adjustments. This makes them suitable for end users with varying levels of technical expertise. Additionally, the units support smart home integration, enabling remote monitoring and control via mobile apps, which enhances comfort and convenience for users.

Durability is another hallmark of Thermo Products. The robust construction of both the CHB1 and CBD1 series units ensures resilience against harsh weather conditions and prolonged usage. Furthermore, they come equipped with advanced safety features, including over-temperature protection and automatic shut-off mechanisms, which provide peace of mind for consumers.

In summary, the Thermo Products CHB1-50N, CBD1-75N, CHB1-100N, CHB1-125N, and CBD1-100N models represent a comprehensive solution for effective heating and cooling needs. With their blend of efficiency, innovative technologies, user-friendly design, and durability, these products are positioned to deliver exceptional value and performance in a variety of environments.
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