Electrical Millivolt | Raypak 105B guide

Liming	Bypassing too much water	Inspect bypass for movement, if no movement,
		replace.
Leaking at well.	Overacid	Replace well and maintain water chemistry
		properly.
Leaking at heat exchanger.	Overacid	Replace heat exchanger and maintain
		chemistry properly.
Gasket brittle and leaking -	Heater running after pump
(overheated).	shuts off	See pressure switch adjustment.
	Refractory damage	Replace refractory.
	Sooted heater	Determine cause of sooting and correct.

ELECTRICAL ( MILLIVOLT)

RAYPAK POOL OR SPA HEATER ELECTRICAL

CHECK WITH MV GAS VALVE

CAUTION: For qualified service personnel only.

1.Filter must be on with adequate water flow through heater.

2.Gas valve must be "ON" position. Thermostat set higher than pool water temperature.

3.Jumpers are for temporary check only. If left in place, they could cause the heater to burn up.

Light pilot

If pilot burner remains lit.

Jump across both "TH"

wires on gas valves


If main burner fires,				If main burner does not
remove jumper				fire, remove jumper

Replace

gas

valve

If pilot burner goes out when main burner lights or when gas valve knob is released

Remove both "TH"

wires from gas valve.

Relight pilot

If pilot burner does not light

Check gas supply, gas line size, gas pressure. Also check for insects or debris in pilot output.

Jump across pressure

switch terminals


If main burner fires,					If main burner does not
remove jumper					fire, remove jumper


Clean filter					Jump across thermostat

If pilot burner stays on

Problem is a wire or component short to cabinet or low gas pressure

If burner does not remain lit, attach millivolt meter and read pilot output.

If above 500mV, replace gas valve

Check for adequate water

flow from filter

Replace pressure switch

If main burner fires,

remove jumper

Replace thermostat

If main burner does

NOT fire...

Jump across each high limit and remove jumper

Replace high limit that caused heater to fire

If below 500mV, check gas pressure. Also check for insects or debris in the pilot burner

If output is still low, replace pilot generator.

105B specifications

Raypak 105B is a well-engineered boiler designed for various heating applications. Known for its efficiency and reliability, the Raypak 105B is a preferred choice among professionals in both residential and commercial settings.

One of the main features of the Raypak 105B is its compact design. Measuring in at a size that allows for easy installation, it is ideal for locations where space is at a premium. The unit's lightweight materials contribute to a reduced load on structural components of buildings, making it an efficient option for retrofits and new installations alike.

The Raypak 105B operates on advanced technology that ensures optimal performance and energy efficiency. The unit boasts a high thermal efficiency rating, which translates to lower operational costs for users. Its innovative control system monitors and adjusts the heating output, ensuring that the boiler operates at peak efficiency while maintaining comfort.

Another significant characteristic of the Raypak 105B is its built-in hydrostat. This feature automatically controls water temperature, providing a safeguard against overheating and improving overall safety. The unit's durable stainless steel heat exchanger enhances the longevity of the product while also resisting corrosion, a common issue in boiler systems.

In terms of environmental considerations, the Raypak 105B is designed to meet or exceed industry standards for emissions. This not only helps users comply with regulations but also contributes to a reduced carbon footprint. Additionally, the natural gas or propane options add versatility in terms of fuel choice, catering to a wide range of applications.

Ease of maintenance is another advantage offered by the Raypak 105B. The unit is designed to provide straightforward access to key components, minimizing operational downtime when servicing is needed. This thoughtful design element supports both residential and commercial needs, ensuring reliability in various settings.

In summary, the Raypak 105B stands out due to its compact design, high thermal efficiency, advanced control systems, and robust safety features. With its focus on longevity, ease of maintenance, and environmental compliance, the Raypak 105B continues to be a leading choice for efficient heating solutions in diverse applications. Its reputation for reliability makes it a trusted option for those in need of dependable heating solutions.