The MVB must be equipped with a field-supplied ex- ternal pump and bypass arrangement. This arrangement blends outlet water with the inlet water to increase the inlet water temperature to a minimum of 105°F (40°C) for Pool Heater (P and WHP) versions and 120°F (49°C) for Hydronic Heating (H7) or Domestic Hot Water (WH1) versions, thereby reducing the likelihood of condensation forming on the heat exchanger. The pump also serves to circulate water through the heater from the main system piping.

CAUTION: Power to the heater should be interlocked with the main system pump to make sure the heater does not fire without the main system pump in operation. Improper flow control can damage the heater. Uncontrolled flow (too high) or restricted flow (too low) can seriously damage the heater. Follow these instructions to make sure your heater is properly installed.

To complete the installation of the pool heater, the pool thermostat must be installed in the main return water line, upstream of the heater. This will ensure that the heater will be energized at the right time.

1.Turn on pump.

2.Turn on heater and wait until heater goes to full fire.

3.With the heater operating at 100% firing rate, set Valve A (the bypass) to 1⁄2 open position, and Valve B to fully open position. See Fig. 16.

4.Adjust Valve A until the inlet water temperature is 105°F (40°C) or 120°F (49°C) depending upon heater type.

NOTE: Opening the valve will increase the temperature and closing the valve will decrease the temperature.

5.If this process does not raise the inlet water tem- perature to 105°F (40°C) for Pool Heater (P and WHP) versions and 120°F (49°C) for Hydronic Heating (H7) or Domestic Hot Water (WH1) ver- sions and Valve A is fully open, then slowly throttle Valve B closed to increase the inlet water temper- ature to the required temperature.

POOL

THERMOSTAT

FROM

FILTER

*

TO POOL

 

CHEMICAL

 

FEED

 

*Maximum 4 times the pipe diameter or 12”, whichever is less.

 

Fig. 15: Single Pool Heater Application

 

Adjustment of the manual bypass valve is critical to

 

proper operation of the heater. The manual bypass

 

valve should be adjusted to achieve a minimum inlet

 

water temperature of 105°F (40°C) for Pool Heater (P

 

and WHP) versions and 120°F (49°C) for Hydronic

 

Heating (H7) or Domestic Hot Water (WH1) versions

 

and a system supply water temperature below 140°F

 

(60°C). When starting with a cold pool, make initial

 

adjustments. Make final adjustments when pool water

 

approaches desired temperature.

 

The use of a bypass is required for proper operation in

Fig. 16: “H” Bypass Setting

a pool heating application. Use the following instruc-

tions to set the manual bypass:

 

17

Page 16 Page 18
Page 17
Image 17
Raypak 5042004 operating instructions Pool heating application. Use the following instruc
Page 16 Page 18

5042004 specifications

The Raypak 5042004 is a highly efficient pool heater designed for residential and commercial applications, providing warmth and comfort for swimming pools and spas. It is a part of Raypak's extensive lineup of pool heating solutions, known for their reliability and energy efficiency. This model caters to different heating needs while maximizing performance and reducing energy consumption.

One of the standout features of the Raypak 5042004 is its use of advanced heat exchanger technology. Constructed with a durable copper fin design, the heat exchanger enhances thermal conductivity, allowing the unit to heat water quickly and effectively. This ensures a consistently enjoyable swimming experience, even in cooler weather conditions. The heater’s aluminum cabinet is designed to withstand harsh weather and resist corrosion, increasing its longevity and reliability.

In addition to its robust construction, the Raypak 5042004 incorporates a user-friendly digital control system. This control system allows users to set their desired temperature with precision, enabling easy adjustments and enhanced control over the heating process. The digital display provides real-time feedback, giving users insight into the system's operation and current water temperature.

Moreover, this model offers a specialized environmentally friendly option. The Raypak 5042004 is designed to run efficiently on both natural gas and propane, which provides flexibility regarding fuel choice based on availability and personal preference. This versatility is paired with low NOx (nitric oxide) emissions, making it compliant with stringent environmental regulations, making it an eco-friendly choice for consumers.

The ease of installation is another characteristic that sets the Raypak 5042004 apart from its competitors. The unit includes versatile piping options and integrated automation features that facilitate quick and hassle-free installation, ultimately saving time and effort for both professional installers and DIY enthusiasts.

In summary, the Raypak 5042004 is a cutting-edge pool heater that combines high efficiency, robust construction, user-friendly controls, and eco-friendly features. Its advanced heating technologies, durable design, and versatile fuel options make it an excellent choice for anyone looking to enhance their swimming experience year-round while being conscious of energy consumption and environmental impact.
Top Page Image Contents