Raypak MVB TYPE B 504-2004 Instrucciones de operaciones

INSTALLATION & OPERATING INSTRUCTIONSCATALOG NO. 3400.54C Effective: 01-08-09 Replaces: 09-15-08 P/N 241317 Rev. 4This manual should be maintain

U.S. Installations1Canadian Installations2AClearance above grade, veranda, porch, deck, or balcony1 ft (30 cm) 1 ft (30 cm)BClearance to window or doo

Optional Construction Air FilterAn optional construction air filter is available for use.The filter should be removed after construction is fin-ished

b. Where communicating with the outdoorsthrough horizontal ducts, each opening shallhave a minimum free area of 1 in.2per 2,000BTUH (1,100 mm2per kW)

Relief Valve PipingTemperature & Pressure GaugeThe temperature and pressure gauge is shipped loosefor field installation and must be installed wit

longer needed and the bypass can be shut off. If thebypass is not shut off as the system heats up, the out-let temperature may continue to climb and t

Table F: Heater Rates of Flow and Pressure DropsNote: Basis for minimum flow is ΔT. Basis for maximum flow is gpm.equipped with flow control valves o

Domestic Hot WaterWhen designing the water piping system for domestichot water applications, water hardness should be con-sidered. Table G indicates t

increase the inlet water temperature to a minimum of105°F (40°C) for Pool Heater (P and WHP) versionsand 120°F (49°C) for Hydronic Heating (H7) orDome

Pool/Spa Water ChemistryChemical imbalance can cause severe damage to thepool heater and associated equipment. Maintain thewater chemistry according

Further advice should be obtained from your pool orspa builder, accredited pool shop, or chemical suppli-er for the correct levels for your water.Auto

Rev. 4 reflects the following: Changes to: Table J on page 20; Fig. 16 on page 21; the Heater Sequence of Operation sec-tion on page 36; the UDB Diagn

• Safety wiring must be NEC Class 1.• Heater must be electrically grounded as requiredby the NEC.• In Canada, CSA C22. 1 C.E.C. Part 1.The MVB 504-150

Check the power source:AC = 108 VAC Minimum, 132 VAC MAXAB = 108 VAC Minimum, 132 VAC MAXBC = <1 VAC MaximumMaking the Electrical ConnectionsRefer

Field Wiring ConnectionVentingGeneralAppliance CategoriesHeaters are divided into four categories based on thepressure produced in the exhaust and the

1. Condensate can freeze on the vent cap. Frozencondensate on the vent cap can result in a blockedflue condition.2. Give special attention to the loca

7. The vent terminal requires a 12 in. vent terminalclearance from the wall.8. Terminate vent at least 1 ft above grade, includingnormal snow line.9.

Table L: Category I Vertical Venting1 Vent lengths are based on a lateral length of 2 ft. Refer to the latest edition of the NFGC for furtherdetails.

Common VentingManifolds that connect more than one heater to a com-mon chimney must be sized to handle the combinedload. Consult available guides for

system. Turn on any exhaust fans, such as rangehoods and bathroom exhausts, at maximumspeed. Do not operate summer exhaust fan. Closefireplace dampers

• 75’ of straight flue pipe• 65’ of straight flue pipe and one elbow• 55’ of straight flue pipe and two elbows• 45’ of straight pipe and three elbowsT

* Vent lengths are based on a lateral length of 2 ft. Refer to the latest edition of the NFGC for further details. ** Subtract 10 ft per elbow. Max. 4

WARNINGS 4BEFORE INSTALLATION 5Product Receipt 5Model Identification 5Ratings and Certifications 5Installations at Elevation 5Component Locations 6Gen

Freeze ProtectionThe Raypak electronic temperature control includes afreeze protection feature. In the event the temperaturedrops below 40°F at any of

maintain near 160ºF system supply temperature, andif the system ΔT is 10ºF, then the system return (target)set-point is 160-10=150ºF.Deadband: Deadban

Mode 7 – Designed for an external input signal withprimary/secondary piping. The external input signalcan be provided from a BMS, an EMS or a sequenc-

Mode 8 – This mode is used for remote control of theheater. The Boil Max setting is the heater shutdowntemperature. The heater is enabled with a contr

Table Q: Temperature Control Default Setpoints—Boiler Boiler (H7)Item Modes Default Setting RangeBoil Target2 140°F OFF, 70 to 220°F3 160°F OFF, 70 to

FP - Flame proof warning.MODE - Operating mode of the heater.OFFSET - The Offset setting allows the boiler targettemperature to be fine tuned to the

To make an adjustment to a setting in the control,begin by selecting the “ADJUST” menu. To changefrom the view menu to the adjust menu, simultaneous-l

Ignition ModuleWhen additional heat is needed, the combustion airblower starts to purge air from the combustion cham-ber for 15 seconds. On proof-of-a

Modulating Temperature ControlThis heater is equipped with a Raypak modulatingtemperature control. Refer to information starting onpage 31 for informa

Blocked Vent SwitchThis heater is equipped with a blocked vent pressureswitch to prevent the operation of the heater when toomuch of the vent is block

DANGER: Indicates the presence of immediate hazards which will cause severepersonal injury, death or substantial property damage if ignored.WARNING:In

WIRING DIAGRAM - Models H & WHCalifornia Hot Water Supply, Inc. (800) 249-724440

WIRING DIAGRAM - Models P & WHPCalifornia Hot Water Supply, Inc. (800) 249-724441

START-UPPre Start-upFilling System (Heating Boilers) Fill system with water. Purge all air from the system.Lower system pressure. Open valves for norm

Check Power SupplyWith multi-meter at incoming power, check voltagebetween:Hot - Common (≈120 VAC)Hot - Ground (≈120 VAC)Common - Ground (< 1 VAC)A

pressure should read per the values in Table X fornatural and propane gas.2. If the pressure reading differs by more than ± 0.2in. WC, STOP – Call the

Leak Test Procedure: Dual-Seat GasValveProper leak testing requires three pressure test pointsin the gas train.Remove the access panel on the rear of

for operation as outlined by manufacturer. Burnershould be operating and should go off when con-trols are tested. When safety devices are restored,bur

d. Gas is on at the meter and the heater.e. Incoming dynamic gas pressure to the gasvalve is NOT less than 4.0 in. WC for naturalgas or propane gas.To

TROUBLESHOOTINGSte p 8 Ste p 7 Ste p 6 Ste p 9 Step 1 Step 2 Step 3 Step 4 Step 5 Is there a Call For Heat? Is Disable connection intact

UDB Fault HistoryTo view the fault codes in the UDB history file:1. Press the UP or DOWN buttons on the membraneswitch for 2 seconds to access the fau

BEFORE INSTALLATIONRaypak strongly recommends that this manual be re-viewed thoroughly before installing your MVB heater.Please review the General Saf

densate management system or drain, as requiredby local codes.3. Check that area is free from combustible materi-als, gasoline, and other flammable va

6. Perform leakage test on gas valves (See Fig. 46.)and procedure on page 46.7. Test air switch in accordance with manufacturer’sinstructions. (Turn p

(b) EXEMPTIONS: The following equipment is exempt from248 CMR 5.08(2)(a)1 through 4:1. The equipment listed in Chapter 10 entitled "EquipmentNot

LIMITED PARTS WARRANTY MVB – TYPES H AND WH MODELS 504-2004 SCOPE Raypak, Inc. (“Raypak”) warrants to the original owner that all parts of this heat

LIMITED PARTS WARRANTY MVB – TYPES P & WHP MODELS 504–2004 SCOPERaypak, Inc. (“Raypak”) warrants to the original owner that all parts of this

55START-UP CHECKLIST FOR FAN-ASSISTED RAYPAK PRODUCTS This start-up checklist is to be completely filled out by the service technician starting up the

www.raypak.com Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 Fax (805) 278-5468Litho in U.S.A.California Hot Water Supply, Inc.

General InformationTable A: Basic Data6Component LocationsPanels omitted for clarityFig. 1: Component Locations – SideTop panel, blower and gas train

GENERAL SAFETYTo meet commercial hot water use needs, the highlimit safety control on this water heater will shut off themain gas valve before the out

Equipment BaseThe heater should be mounted on a level, structurallysound surface. The heater is approved for installationon a combustible surface but

Fig. 5: Minimum Clearances from CombustibleSurfaces – Indoor and Outdoor Installationscodes and the requirments of the gas supplier. Threesides must b