Boilers

HEAT EXCHANGER

JACKET

OPERATING CONTROLS

SAFETIES

GAS TRAIN

OTHER

	MVB
				Water Heaters		Boilers
					(Type WH)	(Type H)


ASME, National Board Registered, 160 PSI		• HLW Stamp			⬤	N/A
		• H Stamp			N/A	⬤
Heat Exchanger Tubes		• Copper			⬤	⬤
		• Cupro Nickel			◯	◯
Bronze Headers					⬤	◯
Cast Iron Headers					N/A	⬤
Pressure Relief Valve		• 60 PSI			◯	⬤
		• 125 PSI			⬤	◯
		• 30, 45, 75, 150 PSI			◯	◯
Temperature & Pressure Gauge					⬤	⬤
Pump		• 120V, Single-Phase			◯	◯

Indoor/Outdoor Certified					⬤	⬤
Vent Terminal		• Outdoor			◯	◯
		• Through-The-Wall			◯	◯
Fully-Enclosed Controls					⬤	⬤
Combustible Floor Rated					⬤	⬤

120V Power Supply With 120V/24V Transformer					⬤	⬤
On/Off Switch					⬤	⬤
Programmable Pump Time Delay, Single-Phase		• Included In TempTracker Mod Controller			⬤	⬤
Terminal Block Connections		• Enable / Disable			⬤	⬤
		• External Interlocks			⬤	⬤
		• 0-10 VDC Setpoint/Direct Drive Input			⬤	⬤
Diagnostic LCD Display With Up To 16 Faults					⬤	⬤
Status Display Lights (4)					⬤	⬤
Temperature Controller With 3 Water Sensors		• TempTracker Mod (Up To 4:1 Turndown, Cat. IV)			⬤	⬤
		• Outdoor Reset Sensor			N/A	◯
Multiple Boiler Controller		• TempTracker Mod+ Hybrid BACnet, Up To 16 boilers ◯				◯
		• Multi-Mod Platinum (BACnet)			◯	◯

Hot Surface Ignition System		• 1-Try (Standard On Cat. IV)			◯	◯
		• 3-Try (Standard On Cat. I)			⬤	⬤
High/Low Gas Pressure Switches					◯	◯
Blocked Vent And Air Pressure Switches					⬤	⬤
High Limit Switch		• Manual Reset, Fixed			⬤	⬤
		• Manual Reset, Adjustable			◯	◯
		• Automatic Reset, Adjustable			◯	◯
Low Water Cut-Off, 24V		• With Manual Reset And Test Buttons			◯	◯
Flow Switch					⬤	⬤

Modulating Combination Gas Valve					⬤	⬤
Combustion Air Blower					⬤	⬤
TruSeal Direct-Vent Ready					⬤	⬤
Additional Safety Valve		• Motorized (Externally Mounted)			◯	◯
		• Solenoid (Externally Mounted)			◯	◯

CSA-Certified Efficiency		• Cat. IV - 87% At Full Fire			⬤	⬤
		• Cat. I - 84% to 85% (See MBTUH Table)			⬤	⬤
Air Filter (Shipped Loose)					⬤	⬤
Alarm System					◯	◯
CSD-1 / GE GAP Control System					◯	◯
Low NOx		• Meets All Current Requirements			⬤	⬤
Cold Water Start		• Prevents Internal Condensation On Start-Up			◯	◯
Cold Water Run		• Prevents Condensation In Continuous Low-Temp Operation ◯				◯
⬤ ⬤ = Standard	◯ ◯ = Optional
			® LLC
			® LLC

Raypak, Inc. • 2151 Eastman Avenue, Oxnard, CA 93030 • phone: (805) 278-5300 • fax: (800) 872-8725 • www.raypak.com

Cat. No. 3400.11H Effective 05-01-11 Replaces 02-15-10

503 specifications

The Raypak 503 is a high-efficiency, gas-fired pool heater engineered for optimal performance and longevity. This versatile heater is best suited for residential and commercial pools, spas, or hot tubs, delivering exceptional heat without sacrificing energy efficiency. With a robust design, the Raypak 503 ensures reliable operation in varying temperature conditions.

One of the main features of the Raypak 503 is its advanced heating technology. It utilizes a copper heat exchanger, which is known for its excellent thermal conductivity, allowing the heater to respond quickly to temperature adjustments. This feature ensures that users can maintain their desired pool or spa temperature with ease. The heat exchanger is encapsulated in durable, corrosion-resistant materials, prolonging the unit's lifespan and reducing maintenance costs.

The Raypak 503 is equipped with a digital control panel that provides an intuitive interface for easy temperature settings and monitoring. The precise temperature control allows for accurate heating to meet individual preferences, ensuring a comfortable swimming experience. Additionally, the digital display offers diagnostics and alerts for troubleshooting, facilitating proactive maintenance.

Another notable characteristic is the compact design of the Raypak 503, making it an ideal choice for properties with limited space. With its efficient size, the heater can be integrated seamlessly into existing pool equipment layouts without significant modifications.

Safety is paramount in the Raypak 503, which features multiple safety mechanisms, including a flame rollout switch and automatic shut-off to prevent overheating. These safety attributes enhance user confidence and promote a hassle-free operation.

The Raypak 503 operates quietly, which is a significant advantage for those who favor a serene swimming environment. Its design minimizes noise pollution, allowing swimmers to enjoy their pool experience without the distraction of a loud heater.

For eco-conscious users, the Raypak 503 boasts an environmentally friendly design, meeting stringent emissions standards. Its energy-efficient operation helps to reduce utility bills while minimizing the environmental footprint associated with pool heating.

In summary, the Raypak 503 is a reliable solution for heating pools and spas, combining advanced technology with user-friendly features. Its durable construction, precise temperature control, compact design, safety mechanisms, and energy efficiency make it an exceptional choice for anyone looking to enhance their aquatic experience. This heater exemplifies Raypak's commitment to quality, performance, and customer satisfaction in the pool heating market.

MVB

503 specifications