Instruction/ maintenance manual of the product 1.5 Crestron electronic
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This manual must only be used by a qualified heating installer / service technician. Read all instructions, including this 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.
2 Contents Hazard definitions The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product.
Installation & Operation Manual Please read before proceeding Installer – Read all instructions, including this manual and the Crest Service Manual, before installing. Perform steps in the order given. User – This manual is for use only by a qualified heating installer/ service technician.
Installation & Operation Manual 4 The Crest - How it works... 1. Front access panels Provides access to the controls compartment. 2. Top access panel Provides access to the burner compartment. 3. Air pressure switch The air pressure switch detects blocked flue/vent conditions.
Left Side (inside unit) Right Side (inside unit) The Crest - How it works... (continued) 5 Installation & Operation Manual Models 1.5 - 2.0 - 2.5 - 3.
6 Installation & Operation Manual Ratings Crest AHRI Rating Model Number Note: Change “N” to “L” for L.P. gas models. Input MBH (Note 4) Min Max Gross Output MBH (Note 1) Net AHRI Ratings .
7 Installation & Operation Manual Installation must comply with: • Local, state, provincial, and national codes, laws, regulations, and ordinances. • National Fuel Gas Code, NFPA 54 / ANSI Z223.1 – latest edition. • Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1 - latest edition, when required.
Installation & Operation Manual 8 1 Determine boiler location Provide air openings to room: The Crest alone in boiler room 1. No air ventilation openings into the boiler room are needed when clearances around the Crest are at least equal to the SERVICE clearances shown in FIG.
Installation & Operation Manual 9 Products to avoid: Spray cans containing chloro/fluorocarbons Permanent wave solutions Chlorinated waxes/cleaners Chlorine-based swimming pool chemicals Calcium c.
Installation & Operation Manual 1 Determine boiler location 10 When removing a boiler from existing common vent system: Do not install the Crest into a common vent with any other appliance except as noted in Section 2 on page 18.
Installation & Operation Manual 1 Determine boiler location (continued) Remove boiler from wood pallet 1. After removing the outer shipping crate and plastic from the boiler, remove the parts package (packaged parts inside the controls compartment of the boiler inside the lower front access panel).
1 Determine boiler location Installation & Operation Manual Combustion and ventilation air requirements for appliances drawing air from the equipment room Provisions for combustion and ventilation air must be in accordance with Air for Combustion and Ventilation, of the latest edition of the National Fuel Gas Code, NFPA 54 / ANSI Z223.
Installation & Operation Manual 4. If a single combustion air opening is provided to bring combustion air in directly from the outdoors, the opening must be sized based on a minimum free area of one square inch per 3000 Btu/hr (7 cm 2 per kW). This opening must be located within 12” (30 cm) of the top of the enclosure (see FIG.
14 Installation & Operation Manual Vertical 2 General venting Sidewall Direct venting Vertical Vent, Sidewall Air Sidewall Vertical Optional room air.
15 Installation & Operation Manual 2 General venting (continued) Install vent and combustion air piping DANGER The Crest must be vented and supplied with combustion and ventilation air as described in this section.
16 Installation & Operation Manual Air intake/vent connections 1. Combustion Air Intake Connector (FIG. 2-1) - Used to provide combustion air directly to the unit from outdoors.
17 Installation & Operation Manual Vent, air piping and termination: The Crest vent and air piping can be installed through the roof or through a sidewall. Follow the procedures in this manual for the method chosen. Refer to the information in this manual to determine acceptable vent and air piping length.
Installation & Operation Manual 18 2 General venting Common venting Crest boilers may be common vented; however, the following criteria MUST BE followed: 1. Only Crest boilers may be connected to the common vent. DO NOT mix other manufacturer’s appliances or other Lochinvar models.
Installation & Operation Manual 19 3 Vertical direct venting Vent/air termination – vertical Prepare roof penetrations 1. Air pipe penetration: a. Cut a hole for the air pipe. Size the air pipe hole as close as desired to the air pipe outside diameter.
20 Installation & Operation Manual 3 Vertical direct venting Multiple vent/air terminations 1. When terminating multiple Crest boilers, terminate each vent/air connection as described in this manual (FIG.
Installation & Operation Manual 3. Maintain clearances as shown in FIG.’s 4-1 thru 4-3, pages 21 and 22. The vent termination should not be located in traffic areas such as walkways, adjacent buildings, operable windows, or doors. Also maintain the following: a.
Termination and fittings 1. The air termination must be oriented at least 12 inches above grade or snow line as shown in FIG. 4-1, page 21. 2. Maintain the required dimensions of the finished termination piping as shown in FIG. 4-1, page 21. 3. Do not extend exposed vent pipe outside of the building more than what is shown in this document.
Installation & Operation Manual 4 Sidewall direct venting (continued) 2. Place wall penetrations to obtain minimum clearance of 12 inches (305 mm) between vent pipe and adjacent air inlet, as shown in FIG. 4-4 for U.S. installations. For Canadian installations, provide clearances required by CSA B149.
24 Installation & Operation Manual 5 Hydronic piping System water piping methods The Crest is designed to function in a closed loop pressurized system not less than 12 psi (83 kPa). A temperature and pressure gauge is included to monitor system pressure and outlet temperature and should be located on the boiler outlet.
Installation & Operation Manual 5 Hydronic piping (continued) It is required that boiler piping systems utilize Primary/Secondary or Fixed or Variable Flow Primary configurations as shown in FIG.
Installation & Operation Manual 5 Hydronic piping Near boiler piping components 1. Boiler piping: Boiler system piping should be sized per the pipe requirements listed in Tables 5A and 5C. 2. Boiler circulating pump: Field supplied. When using Primary/Secondary piping the boiler circulating pump should be sized per Table 5A.
27 Installation & Operation Manual 5 Hydronic piping (continued) Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.
28 Installation & Operation Manual 5 Hydronic piping Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.
29 Installation & Operation Manual 5 Hydronic piping (continued) Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.
30 Installation & Operation Manual 5 Hydronic piping Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.
31 Installation & Operation Manual 6 Gas connections Connecting gas supply piping 1. Refer to FIG. 6-1 to pipe gas to the boiler. a. Install ground joint union for servicing, when required. b. In Canada – When using manual main shutoff valves, it must be identified by the installer.
32 Installation & Operation Manual 6 Gas connections Use two wrenches when tightening gas piping at boiler (FIG. 6-2), using one wrench to prevent the boiler gas line connection from turning. Failure to support the boiler gas connection pipe to prevent it from turning could damage gas line components.
33 Table 6B Natural Gas Pipe Size Chart The gas piping must be sized for the proper flow and length of pipe, to avoid excessive pressure drop. Both the gas meter and the gas regulator must be properly sized for the total gas load. If you experience a pressure drop greater than 1 inch w.
34 Installation & Operation Manual WARNING Do not check for gas leaks with an open flame -- use the bubble test. Failure to use the bubble test or check for gas leaks can cause severe personal injury, death, or substantial property damage. 14.
35 Installation & Operation Manual 7 Field wiring ELECTRICAL SHOCK HAZARD – For your safety, turn off electrical power supply before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.
Installation & Operation Manual Low voltage connections 1. Route all low voltage wires through the knockouts in the rear of the boiler, as shown in FIG. 7-2. 2. Connect low voltage wiring to low voltage connection board as shown in FIG. 7-3 on page 38 of this manual and the boiler wiring diagram.
37 Installation & Operation Manual 7 Field wiring (continued) Auxiliary switch 1 & 2 Additional field supplied limit controls may be connected to the auxiliary switch inputs. If additional limit controls fail or open, it will result in a manual reset lockout.
38 Installation & Operation Manual 7 Field wiring 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ALAR M CONTA CTS RUN TIME CONTA CTS TANK THER MOSTAT ENAB L E LO U VE R PROVING L OUVER REL AY AUX SWITCH 1.
Installation & Operation Manual 8 Condensate disposal Condensate drain 1. The Crest is a high efficiency appliance that produces condensate. 2. The rear of the boiler has a 1 inch (25.4 mm) stainless steel drain fitting and a 3/8 inch (9.8 mm) stainless steel vent line for connection to the condensate trap.
40 Installation & Operation Manual 9 Start-up Check/control water chemistry Do not use petroleum-based cleaning or sealing compounds in the boiler system. Damage to elastomer seals and gaskets in the system could occur, resulting in substantial property damage.
41 Installation & Operation Manual 9 Start-up (continued) Check for gas leaks Before starting the boiler, and during initial operation, smell near the floor and around the boiler for gas odorant or any unusual odor. Remove the top access panel and smell the interior of the boiler enclosure.
42 Installation & Operation Manual 9 Start-up Final checks before starting the boiler Read the Crest Service Manual to familiarize yourself with SMART TOUCH control module operation.
43 Installation & Operation Manual F O R YOUR S AF ET Y RE AD BE F ORE OP ERAT ING W A RNI NG : I f y ou do no t f oll ow t hes e i nstr uc t ions ex a c t l y, a f ir e or ex plos i on m ay r esult caus i ng pro per t y dam a ge, pers o nal i njury , or los s of lif e.
44 Installation & Operation Manual 9 Start-up Check flame and combustion (continued) 4. Navigate to the Service Screen from the Home Screen by pressing the MAIN MENU button and then the SERVICE button. 5. On the Service Screen place heater into Service Mode by selecting the START button, then selecting Set Gas Valve 1 - High .
45 Installation & Operation Manual Set Hot Water Generator (HWG) operation Verify HWG circulator mode The HWG Mode is programmed to heat an indirect hot water tank. When a tank thermostat or a tank sensor initiates a call for heat, the SMART TOUCH control will turn on the HW pump and turn off the boiler pump (if running).
46 Installation & Operation Manual General How the boiler operates The Crest uses an advanced stainless steel heat exchanger and electronic control module that allows fully condensing operation. The blowers pull in air and push flue products out of the boiler through the heat exchanger and flue piping.
10 Operating information (continued) 47 Installation & Operation Manual Gradient limiting If during operation of the boiler the outlet water temperature is rising too quickly, the control will reduce the firing rate to its lowest setting.
48 Installation & Operation Manual 10 Operating information Monitor external limits Connections are provided on the connection board for external limits such as an additional high limit. The SMART TOUCH control will shut off the burner and inhibit relighting whenever any of these external limits open.
10 Operating information (continued) 49 Installation & Operation Manual Cascade When multiple boilers are installed, they can be wired together in a cascade sequence.
10 Operating information 50 Installation & Operation Manual Sequence of operation 1. Upon a call for heat, the control turns on the appropriate pumps (system and boiler pumps for a space heating call, HW pump for a domestic hot water call).
10 Operating information (continued) 51 Installation & Operation Manual Outlet Water Temperature - This is the boiler outlet temperature. Inlet Water Temperature - This is the boiler inlet temperature.
52 Installation & Operation Manual 10 Operating information Figure 10-2 Main Menu Screen Use the Main Menu Screen (FIG. 10-2) to access the screens necessary to set temperatures, operating conditions, and monitor boiler operation. The Crest is equipped with a SMART TOUCH control system.
53 Installation & Operation Manual 11 Maintenance Maintenance and annual startup Table 11A Service and Maintenance Schedules Service technician (see the following pages for instructions) General: .
54 Installation & Operation Manual 11 Maintenance Follow the service and maintenance procedures given throughout this manual and in component literature shipped with the boiler. Failure to perform the service and maintenance could result in damage to the boiler or system.
55 Installation & Operation Manual 11 Maintenance (continued) Flue vent system and air piping 1. Visually inspect the entire flue gas venting system and air piping for blockage, deterioration or leakage. Repair any joints that show signs of leakage.
56 Installation & Operation Manual 11 Maintenance Inspect ignition and flame sense electrodes 1. Remove the ignition and both flame sense electrodes from the burner plate. 2. Remove any deposits accumulated on the ignition/ flame sense electrodes using sandpaper.
57 Installation & Operation Manual 11 Maintenance (continued) The boiler contains ceramic fiber materials. Use care when handling these materials per instructions on this page. Failure to comply could result in severe personal injury. WARNING Cleaning boiler heat exchanger 1.
58 Installation & Operation Manual JUNCTION BOX TERMIN AL STRIP 120V SU PPLY "L" TERMINAL STR IP 120V SUPPLY "N" 120VAC NEUTRAL INTEGRA TED CONTROL ON/OFF SWITCH F2 3.
59 Installation & Operation Manual 12 Diagrams (continued) Figure 12-2 Wiring Diagram -T -T -T -T -T -T - T - T -T 23 1 1 2 4 5 3 23 1 1 2 45 3 M 1 2 3 Notes : 1. All w i ring m u s t be inst alled i n ac c ordanc e with: lo cal, stat e, provincia l and na t ion al code req uir ements per either N.
Revision Notes: Revision A (ECO #C07970) initial release. Revision B (ECO #C08023) reflects changes made to FIG. 6-3 on page 32 for Mass approval and changes made to FIG. 5-3 on page 28. Revision C (ECO #C08179) reflects the addition of three (3) new vent manufacturers (pg.
An important point after buying a device Crestron electronic 1.5 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Crestron electronic 1.5 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Crestron electronic 1.5 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Crestron electronic 1.5 you will learn all the available features of the product, as well as information on its operation. The information that you get Crestron electronic 1.5 will certainly help you make a decision on the purchase.
If you already are a holder of Crestron electronic 1.5, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Crestron electronic 1.5.
However, one of the most important roles played by the user manual is to help in solving problems with Crestron electronic 1.5. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Crestron electronic 1.5 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
