Manual do usuário Raypak Raytherm Finned Water-Tube Water Heaters

Resumo do conteúdo contido na página número 1

Catalog No.: 3500.90C

RAYTHERM , TYPE WH

Effective: 6-1-08

SUGGESTED SPECIFICATIONS
Replaces: 5-1-05


DIVISION 23 52 33.13

FINNED WATER-TUBE WATER HEATERS
PART 1 - GENERAL
1.1 SUMMARY
A. Section includes gas-fired, copper finned-tube water heaters for use with a storage tank.
B. Related Sections
Specifier Note: Use as needed
1. Building Services Piping – Division 23 21 00
2. Breeching, Chimneys, and Stacks (Venting) – Division 23 51 00
3. HVAC Instrumentation and Con

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1. The water heater(s) shall be fired with gas at a rated input of BTU/hr. 2. The water heater(s) shall be CSA tested and certified with a minimum thermal efficiency of 82 percent at full fire. 3. The water heater(s) shall be ASME inspected and HLW-stamped and National Board registered for 160 PSIG working pressure, complete with a Manufacturer's Data Report. 4. The water heater(s) shall have a floor loading of 70 lbs. /square foot or less. B. Heat Exchanger

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1. The water heater(s) shall be equipped to (a), (b), or (c): a. Provide full modulation of gas input to any load condition as low as 20% of the full rating of the water heater (5:1 ratio) without flashback, burning at orifices or improper combustion. b. Provide staged control of the gas input to the water heater. c. Provide on/off control of the gas input to the water heater. H. Water Heater Diagnostics 1. Provide ignition module indicating the following heartbeats (flashes) by LED signal

Resumo do conteúdo contido na página número 4

inlet temperature is not achieved within the 7-minute time frame. 2. The cold water start system shall be configured with a modulating three-way valve that is controlled by a system-matched PID controller. The PID controller temperature sensor shall be located in the inlet header of the water heater. 3. The control shall have a temperature setting dial located on the face of the board. The temperature range of the dial shall be 105ºF to 120ºF. The PID Logic shall be capable of limiting sys

Resumo do conteúdo contido na página número 5

1. Safeties (2.2 - F) 2. Operating Controls (2.3) 3. Static and full load gas supply pressure 4. Gas manifold and blower air pressure C. Submit copy of start-up report to Architect and Engineer. 3.3 TRAINING A. Provide factory-authorized service representative to train maintenance personnel on procedures and schedules related to start-up, shut-down, troubleshooting, servicing, and preventive maintenance. B. Schedule training at least seven days in advance. END OF SECTION Pro