Table of Contents
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100302418_2000555704 Rev C
Outdoor Crest Supplemental Manual
Models: OF 751 - 6001
This manual must only be used by
WARNING
⚠
a qualified heating installer / service
technician. Read all instructions,
including this manual along with
the Crest Installation and Operation
Manual, and the Crest Service Manual,
before installing. Perform steps in the
order given. Failure to comply could
result in severe personal injury, death,
or substantial property damage.
Save this manual for future reference.
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Table of Contents
Related Manuals for Lochinvar Crest OFN0751
Summary of Contents for Lochinvar Crest OFN0751
- Page 1 100302418_2000555704 Rev C Outdoor Crest Supplemental Manual Models: OF 751 - 6001 This manual must only be used by WARNING ⚠ a qualified heating installer / service technician. Read all instructions, including this manual along with the Crest Installation and Operation Manual, and the Crest Service Manual, before installing.
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Page 2: Table Of Contents
CONTENTS HAZARD DEFINITIONS ..........2 Fill Water ................15 PLEASE READ BEFORE PROCEEDING ..... 3 Boiler Water..............15 THE OUTDOOR CREST -- HOW IT WORKS ..... 4-5 Oxygen Prevention ............16 RATINGS ................6 Check for Gas Leaks ............16 1. -
Page 3: Please Read Before Proceeding
Outdoor Crest Supplemental Manual Please read before proceeding When servicing boiler – Installer – Read all instructions, including ⚠WARNING this manual, the Crest Installation and • To avoid electric shock, disconnect electrical supply Operation Manual and the Crest Service before performing maintenance. Manual, before installing. -
Page 4: The Outdoor Crest - How It Works
Outdoor Crest Supplemental Manual The Outdoor Crest - How it works... Front access panels 18. Low voltage wiring connections (knockouts) Provides access to the controls compartment. Conduit connection points for the low voltage connection boards. Top access panel Provides access to the burner compartment. 19. - Page 5 Outdoor Crest Supplemental Manual The Outdoor Crest - How it works... (continued) 2000549892 00 2000549892 00 DIR #2000549906 00 DIR #2000549892 00 Front View Rear View DIR #2000549910 00 DIR #2000549908 00 Right Side (inside unit) Left Side (inside unit)
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Page 6: Ratings
Outdoor Crest Supplemental Manual Ratings Outdoor Crest Other Specifications AHRI Rating AHRI Model Number Input Gross Ratings Boiler Water Output Water Water, Content Connections Connections Note: Change “N” to Gallons (Notes 4 - 8) “L” for L.P. gas models. (Note 1) (Note 2) OF(N,L)0751 3"... -
Page 7: Determine Boiler Location Installation Must Comply With
Outdoor Crest Supplemental Manual Determine boiler location Installation must comply with: Do not locate unit so that high winds can ⚠ CAUTION deflect off of adjacent walls, buildings • Local, state, provincial, and national codes, laws, regulations, or shrubbery causing recirculation. and ordinances. -
Page 8: Provide Clearances
Outdoor Crest Supplemental Manual Determine boiler location • This unit is not intended for installations where Table 1A Corrosive Contaminants and Sources temperatures may reach below 32°F (0°C). Exposure to freezing temperatures will cause the system and boiler to Products to avoid: freeze and leak. -
Page 9: Install Outdoor Vent Kit
Outdoor Crest Supplemental Manual Determine boiler location (continued) Failure to assure the truck forks are 8. Once the condensate hoses are inserted through the terminal ⚠WARNING plates of the condensate trap box and attached to the long enough to extend at least halfway condensate trap (both inlet and vent), the condensate trap under the boiler heat exchanger will box can then be re-assembled (FIG. -
Page 10: Outdoor Venting
Outdoor Crest Supplemental Manual Determine boiler location Outdoor venting Keep venting areas free of obstructions. Keep area clean • Vent materials for outdoor venting are to be field supplied. and free of combustible and flammable materials. Maintain • The vent must terminate at least 36 inches above the top of minimum clearances to combustible surfaces and a 36"... -
Page 11: Gas Connections Gas Supply
Outdoor Crest Supplemental Manual Gas connections Gas supply Figure 2-1 Gas Supply Piping UNION Ensure that the high gas pressure regulator NOTICE GAS SUPPLY is at least 10 feet (3 m) upstream of the appliance. It is recommended to install one (1) gas regulator for each Outdoor Crest boiler. -
Page 12: Natural Gas
Outdoor Crest Supplemental Manual Gas connections 3. Install 100% lockup gas pressure regulator in supply line for Use two wrenches when tightening gas ⚠WARNING each boiler if inlet pressure exceeds 14 inches w.c. (3.5 kPa). piping at boiler (FIG. 2-2), using one wrench to prevent the boiler gas line Gas valves used on Outdoor Crest boilers are rated for at connection from turning. -
Page 13: Check Inlet Gas Supply
Outdoor Crest Supplemental Manual Gas connections (continued) Table 2B Natural Gas Pipe Size Chart TABLE - 2B Capacity of Schedule 40 Metallic Pipe in Cubic Feet of Natural Gas Per Hour (based on .60 specific gravity, 0.30" w.c. pressure drop) Length of Pipe in Straight Feet Pipe Size... -
Page 14: Gas Valve Replacement
Outdoor Crest Supplemental Manual Gas connections Gas valve replacement Do not check for gas leaks with an open ⚠WARNING flame -- use the bubble test. Failure to The gas valve MUST NOT be replaced with a use the bubble test or check for gas leaks conventional gas valve under any circumstances. -
Page 15: Start-Up
Outdoor Crest Supplemental Manual Start-up Pre-Commissioning Cleaning Boiler water Do not use petroleum based cleaning or 1. Prior to fill and start-up, flush the entire heating system. sealing compounds in the boiler system. 2. Clean the entire heating system with an approved pre- Gaskets and seals in the system may be commissioning cleaner (comparable to Sentinel X300 or damaged. -
Page 16: Oxygen Prevention
Outdoor Crest Supplemental Manual Start-up Oxygen prevention Open the isolation valves one zone at a time. Allow water to run through the zone, pushing out the air. Eliminate all system leaks. Continual CAUTION Run until no noticeable air flow is present. Close fresh makeup water will reduce boiler the zone isolation valves and proceed with the next life. -
Page 17: Check Thermostat Circuit(S)
Outdoor Crest Supplemental Manual Start-up (continued) Final checks before starting the boiler Propane boilers only – Your propane ⚠WARNING supplier mixes an odorant with the propane Read the Crest Service Manual to familiarize yourself to make its presence detectable. In some instances, the odorant can fade, and the with SMART TOUCH control module operation. -
Page 18: Check Flame And Combustion
Outdoor Crest Supplemental Manual Start-up Check vent piping and air piping 7. Once the boiler has modulated up to rate, measure the combustion. The values should be in the range listed in 1. Check for gastight seal at every connection, seam, and Table 3B (this page). -
Page 19: Operating Instructions
Outdoor Crest Supplemental Manual Start-up (continued) Figure 3-3 Operating Instructions FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury, or loss of life. •... -
Page 20: Diagrams
Outdoor Crest Supplemental Manual Diagrams Figure 4-1 Ladder Diagram_751 - 2001 Models... -
Page 21: Wiring Diagram 751 - 2001 Models
Outdoor Crest Supplemental Manual Diagrams (continued) Figure 4-2 Wiring Diagram_751 - 2001 Models BOX DEPICTS WARNING DUAL SENSOR SINGLE HOUSING DISCONNECT POWER BOX DEPICTS BEFORE SERVICING OPTIONAL ITEMS BOARD (AS APPLICABLE) LARGE CONNECTION BOARD LOW VOLTAGE 120 VAC SHIELD INTEGRATED CONTROL HIGH VOLTAGE OPTION SHIELD... -
Page 22: Ladder Diagram 2501 - 3501 Models
Outdoor Crest Supplemental Manual Diagrams Figure 4-3 Ladder Diagram_2501 - 3501 Models NEUTRAL JUNCTION BOX BOX DEPICTS L1 L2 L3 TERMINAL STRIP TERMINAL STRIP OPTIONAL ITEMS 208V 3 SUPPLY 208V SUPPLY "N" SERVICE OUTLET BOX DEPICTS DUAL SENSOR SINGLE HOUSING INTEGRATED CONTROL X1-3 BOARD... -
Page 23: Wiring Diagram 2501 - 3501 Models
Outdoor Crest Supplemental Manual Diagrams (continued) Figure 4-4 Wiring Diagram_2501 - 3501 Models BOX DEPICTS OPTIONAL ITEMS BOX DEPICTS DUAL SENSOR BOARD SINGLE HOUSING (AS APPLICABLE) X1-1 LARGE CONNECTION BOARD X1-2 LOW VOLTAGE X1-3 120 VAC CN6-3 X6-3 SHIELD INTEGRATED CONTROL CN6-2 X6-1 HIGH VOLTAGE... -
Page 24: Ladder Diagram 4001 - 5001 Models
Outdoor Crest Supplemental Manual Diagrams Figure 4-5 Ladder Diagram_4001 - 5001 Models NEUTRAL JUNCTION BOX BOX DEPICTS L1 L2 L3 TERMINAL STRIP TERMINAL STRIP OPTIONAL ITEMS 480V 3 SUPPLY 480V SUPPLY "N" BOX DEPICTS DUAL SENSOR SINGLE HOUSING INTEGRATED CONTROL X1-3 BOARD 1.5A EACH MAX... -
Page 25: Wiring Diagram 4001 - 5001 Models
Outdoor Crest Supplemental Manual Diagrams (continued) Figure 4-6 Wiring Diagram_4001 - 5001 Models BOX DEPICTS OPTIONAL ITEMS BOX DEPICTS DUAL SENSOR BOARD SINGLE HOUSING (AS APPLICABLE) X1-1 LARGE CONNECTION BOARD X1-2 LOW VOLTAGE X1-3 CN6-3 X6-3 120 VAC SHIELD INTEGRATED CONTROL CN6-2 X6-1 HIGH VOLTAGE... -
Page 26: Ladder Diagram 6001 Model
Outdoor Crest Supplemental Manual Diagrams Figure 4-7 Ladder Diagram_6001 Model NEUTRAL JUNCTION BOX BOX DEPICTS L1 L2 L3 TERMINAL STRIP TERMINAL STRIP OPTIONAL ITEMS 480V 3 SUPPLY 480V SUPPLY "N" BOX DEPICTS DUAL SENSOR SINGLE HOUSING INTEGRATED CONTROL X1-3 BOARD 1.5A EACH MAX ON/OFF (AS APPLICABLE) -
Page 27: Wiring Diagram 6001 Model
Outdoor Crest Supplemental Manual Diagrams (continued) Figure 4-8 Wiring Diagram_6001 Model BOX DEPICTS OPTIONAL ITEMS BOX DEPICTS DUAL SENSOR BOARD SINGLE HOUSING (AS APPLICABLE) X1-1 LARGE CONNECTION BOARD X1-2 LOW VOLTAGE X1-3 CN6-3 X6-3 120 VAC SHIELD INTEGRATED CONTROL CN6-2 X6-1 HIGH VOLTAGE OPTION... -
Page 28: Revision Notes
Revision Notes: Revision A (PCP# 3000023718 / CN# 500013605) initial release. Revision B (PCP #3000027910 / CN #500017507) reflects the addition of the 3501 model, updates made to the Check Flame and Combustion Section on page 18, and the wiring and ladder diagrams. Revision C (PCP #3000029182 / CN #500018624) reflects the addition of the 2501 - 3001 and 4001 - 6001 models.