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  4. MVB H-1104
  5. Installation & Operating Instructions Manual

Raypak MVB H-1104 Installation & Operating Instructions Manual

Manual is about: Modulating Vertical Boiler

Summary of MVB H-1104

  • Page 1

    Installation & operating instructions catalog no. 3400.54e effective: 03-25-10 replaces: 03-19-09 p/n 241317 rev. 6 this manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future reference. Models 504–2004 types h, wh, p & whp l w what to do if yo...

  • Page 2

    2 rev. 5 reflects the following: changes to: air filter instructions on page 11, minor text changes on pages 13 and 14, figs. 10 and 11 on page 15,. Fig 12 and table g on page 16, fig 13 on page 17, minor text changes on page 20, fig. 21 on page 22, figs. 22-28 on pages 25- 30, table n on page 29, f...

  • Page 3

    Warnings 4 before installation 5 product receipt 5 model identification 5 ratings and certifications 5 installations at elevation 5 component locations 6 general information 6 general safety 7 time/temperature relationships in scalds 7 installation 8 installation codes 8 equipment base 8 clearances ...

  • Page 4

    4 danger: indicates the presence of immediate hazards which will cause severe personal injury, death or substantial property damage if ignored. Warning: indicates the presence of hazards or unsafe practices which could cause severe personal injury, death or substantial property damage if ignored. Ca...

  • Page 5

    5 before installation raypak strongly recommends that this manual be re- viewed thoroughly before installing your mvb heater. Please review the general safety information before installing the heater. Factory warranty does not apply to heaters that have been improperly installed or oper- ated. (refe...

  • Page 6

    General information table a: basic data 6 high voltage electrical connections component locations panels omitted for clarity fig. 1: component locations – side top panel, blower and gas train omitted for clarity fig. 4: component locations – top fig. 3: component locations – rear model no. Mbtuh inp...

  • Page 7

    7 general safety to meet commercial hot water use needs, the high limit safety control on this water heater will shut off the main gas valve before the outlet temperature reaches 210°f. However, water temperatures over 125°f can cause instant severe burns or death from scalds. When supplying general...

  • Page 8

    Equipment base the heater should be mounted on a level, structurally sound surface. The heater is approved for installation on a combustible surface but must never be installed on carpeting. Gas-fueled equipment installed in enclosed parking garages must be located at least 18 in. Above the floor. I...

  • Page 9

    9 fig. 6: minimum clearances from combustible surfaces – indoor and outdoor installations codes and the requirments of the gas supplier. Three sides must be open in the area under the overhang. Roof water drainage must be diverted away from heaters installed under overhangs. The combustion air intak...

  • Page 10

    10 u.S. Installations 1 canadian installations 2 a clearance above grade, veranda, porch, deck, or balcony 1 ft (30 cm) 1 ft (30 cm) b clearance to window or door that may be opened 4 ft (1.2m) below or to side of opening; 1 foot (30 cm) above opening 3 ft (91 cm) c clearance to permanently closed w...

  • Page 11

    11 air filter an air filter is supplied standard with the heater. This filter is shipped loose for field installation. Refer to the air filter kit installation instructions (part no. 241338) for details. Direct vent if outside air is drawn through the intake pipe directly to the unit for combustion:...

  • Page 12

    The enclosure, shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or spaces (crawl or attic) that freely com- municate with the outdoors. A. Where directly communicating with the out- doors or where communicating to the outdoors through vertical ducts, each op...

  • Page 13

    Relief valve piping temperature & pressure gauge the temperature and pressure gauge is shipped loose for field installation and must be installed within 12 inches of the boiler outlet (if possible) in an easily readable location. Installation must comply with asme section iv as well as all applicabl...

  • Page 14

    14 longer than 7 minutes or where cold water operation is continuous, provisions must be made to mix higher temperature outlet water with the colder inlet water and thereby raise the inlet temperature to at least 120°f (49°c) within the 7-minute time limit. Cold water starts cold water starts, where...

  • Page 15

    15 table f: heater rates of flow and pressure drops note: basis for minimum flow is ∆t. Basis for maximum flow is gpm. Piping all high points should be vented. A heater installed above radiation level must be provided with a low wa- ter cut-off device (sales order option f-10). This heater, when use...

  • Page 16

    16 potable water and space heating 1. All piping materials and components connected to the water heater for the space heating application shall be suitable for use with potable water. 2. Toxic chemicals, such as used for boiler treatment, shall not be introduced into the potable water used for space...

  • Page 17

    17 the mvb must be equipped with a field-supplied ex- ternal pump and bypass arrangement. This arrangement blends outlet water with the inlet water to increase the inlet water temperature to a minimum of 105°f (40°c) for pool heater (p and whp) versions and 120°f (49°c) for hydronic heating (h7) or ...

  • Page 18

    18 pool/spa water chemistry chemical imbalance can cause severe damage to the pool heater and associated equipment. Maintain the water chemistry according to the chart below. If the mineral content and dissolved solids in the water become too high, scale forms inside the heat exchang- er tubes, redu...

  • Page 19

    19 further advice should be obtained from your pool or spa builder, accredited pool shop, or chemical suppli- er for the correct levels for your water. Automatic chlorinators and chemical feeders all chemicals must be introduced and completely dilut- ed into the pool or spa water before being circul...

  • Page 20

    20 • national electrical code and any other national, state, provincial or local codes or regulations hav- ing jurisdiction. • safety wiring must be nec class 1. • heater must be electrically grounded as required by the nec. • in canada, csa c22. 1 c.E.C. Part 1. The mvb 504-1504 heaters are wired f...

  • Page 21

    Check the power source: ac = 108 vac minimum, 132 vac max ab = 108 vac minimum, 132 vac max bc = making the electrical connections refer to fig. 18-21. 1. Verify that circuit breaker is properly sized by referring to heater rating plate. A dedicated circuit breaker should be provided. 2. Note: curre...

  • Page 22

    22 field wiring connection venting general appliance categories heaters are divided into four categories based on the pressure produced in the exhaust and the likelihood of condensate production in the vent. Category i – a heater which operates with a non-pos- itive vent static pressure and with a v...

  • Page 23

    Support of vent stack the weight of the vent stack or chimney must not rest on the heater vent connection. Support must be pro- vided in compliance with applicable codes. The vent should also be installed to maintain proper clearances from combustible materials. Use insulated vent pipe spacers where...

  • Page 24

    Venting installation tips support piping: • horizontal runs—at least every 5 ft • vertical runs—use braces • under or near elbows venting configurations for heaters connected to gas vents or chimneys, vent installations shall be in accordance with the nfgc (u.S.), or b149 (canada), or applicable pro...

  • Page 25

    25 table l: category i vertical venting 1 vent lengths are based on a lateral length of 2 ft. Refer to the latest edition of the nfgc for further details. When vertical height exceeds 25 ft, consult factory prior to installation. * subtract 10 ft per elbow. Max. 4 elbows. ** adapters supplied by oth...

  • Page 26

    26 common venting manifolds that connect more than one heater to a com- mon chimney must be sized to handle the combined load. Consult available guides for proper sizing of the manifold and the chimney. At no time should the area of the common vent be less than the area of the largest heater exhaust...

  • Page 27

    4. Place in operation the appliances being inspected. Follow the manufacturer’s instructions for lighting each appliance. Adjust thermostat so appliance will operate continuously. 5. Check the pressure at a pressure tap located 12 in. Above the bottom joint of the first vertical vent pipe. Pressure ...

  • Page 28

    28 • 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 elbows the vent cap is not considered in the overall length of the venting system. The vent must be installed to prevent flue gas leakage. Care must be...

  • Page 29

    29 ** subtract 10 ft per elbow. Max. 4 elbows. T adapters supplied by others. Table n: category iii horizontal vent & horizontal direct vent see table l for category i venting guidelines. It is recommended that the intake vent be insulated in colder climates. Termination the flue terminal should be ...

  • Page 30

    Freeze protection the raypak electronic temperature control includes a freeze protection feature. In the event the temperature drops below 40°f at any of the boiler temperature sen- sors, the pump is turned on and will remain on until the temperature at all boiler sensors rises to 45°f. Controls the...

  • Page 31

    31 deadband: deadband is a band of temperature sens- ing where no action occurs. All temperature controllers have a deadband and the purpose is to prevent short- cycling of the heater. The on-board temperature controller has a deadband of 2ºf around the differen- tial. Differential: a heat source mu...

  • Page 32

    Trol operates the boiler burner to maintain the boiler target at the boiler outlet sensor. Mode 7 – designed for an external input signal with primary/secondary piping. The external input signal can be provided from a bms, an ems or an external control. The external input signal changes the boiler t...

  • Page 33

    Mode 8 – this mode is for remote firing control of the heater via an external sequencer such as the raypak temptracker mod+. The boil max setting is the heater shutdown temperature (max temperature). The heater is enabled via dry contact at the enable/disable connection at the low voltage terminal s...

  • Page 34

    34 table q: temperature control default setpoints—boiler boiler (h7) item modes default setting range boil target 2 140°f off, 70 to 220°f 3 160°f off, 70 to 190°f 5, 7 180°f off, 70 to 220°f boil max 2, 5, 7, 8 200°f off, 120 to 225°f 3 180°f off, 120 to 190°f boil min 2, 3, 5, 7 135°f off, 80 to 1...

  • Page 35

    35 external input signal – selects external input signal range (0-10vdc or 2-10vdc): 0-10vdc or 0-20 ma external input signal – when the 0-10vdc signal is selected, an input voltage of 1 vdc corresponds to a boiler target temperature of 50°f (10°c). An input voltage of 10 vdc corresponds to a boiler...

  • Page 36

    Units - selects the temperature units to be displayed (°f or °c). Wwsd - selects the outdoor temperature that shuts the heater off, no matter what the demand. Note: the wwsd segment will be displayed on the lcd. Operation the raypak electronic temperature control uses a liquid crystal display (lcd) ...

  • Page 37

    The optional single-try ignition module will lock out after failing to light one time. To reset it, press and release the small, recessed black push button located inside of the cut-out on the lower right-hand corner of the ignition module case. Turning off the power to the heater will not reset the...

  • Page 38

    38 modulating temperature control this heater is equipped with a raypak modulating temperature control. Refer to information starting on page 30 for information on the setting and use of this control. Low water cut-off (optional) the optional low water cut-off automatically shuts down the burner whe...

  • Page 39

    39 blocked vent switch this heater is equipped with a blocked vent pressure switch to prevent the operation of the heater when too much of the vent is blocked. This switch is located on the right side of the heater near the right rear corner. Udb diagnostic board this heater is equipped with a diagn...

  • Page 40

    40 wiring diagram - models h & wh.

  • Page 41

    41 wiring diagram - models p & whp.

  • Page 42

    42 start-up pre start-up filling system (heating boilers) fill system with water. Purge all air from the system. Lower system pressure. Open valves for normal sys- tem operation, and fill system through feed pressure. Manually open air vent on the compression tank until water appears, then close ven...

  • Page 43

    43 check power supply with multi-meter at incoming power, check voltage between: hot - common (≈120 vac) hot - ground (≈120 vac) common - ground ( attach manometers to measure pressures 1. Turn off main gas valve. 2. Attach (1) 12” scale manometer to an upstream bleedle valve on the gas supply pipe ...

  • Page 44

    44 with the blower suction within the tolerances spec- ified in table t, contact the factory. The reference amp draw reading may help to indicate if there is a problem with the system or if blower adjustment is required. Manifold check 1. Check manifold gas pressure at the gas valve out- let pressur...

  • Page 45

    45 leak test procedure: dual-seat gas valve proper leak testing requires three pressure test points in the gas train. Remove the access panel on the rear of the heater to access the gas valve for this test. Test point a is a blee- dle valve located upstream of the combination gas valve on the supply...

  • Page 46

    46 for operation as outlined by manufacturer. Burner should be operating and should go off when con- trols are tested. When safety devices are restored, burners should re-ignite after pre-purge time delay. 8. Test limit control: while burner is operating, move indicator on high limit control below a...

  • Page 47

    47 d. Gas is on at the meter and the heater. E. Incoming dynamic gas pressure to the gas valve is not less than 4.0 in. Wc for natural gas or propane gas. To turn off gas to appliance 1. Shut off manual gas valve field installed near gas inlet connection on back of heater. 2. Remove upper front pane...

  • Page 48

    48 troubleshooting ste 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? Does the combustion air blower come on? Is 4-20ma present at the quick disconnects on the black and blue wires of the tem perature controlle r? Is 24vac at th...

  • Page 49

    49 maintenance suggested minimum maintenance schedule regular service by a qualified service agency and maintenance must be performed to ensure maximum operating efficiency. Maintenance as outlined below may be performed by the owner. Daily 1. Check that the area where the heater is installed is fre...

  • Page 50

    50 6. Perform leakage test on gas valves (see fig. 49.) and procedure on page 45. 7. Test air switch in accordance with manufacturer’s instructions. (turn panel switch to the “on” posi- tion until blower is proven, then turn the switch to “off.” 8. Inspect and clean burner using shop air. As require...

  • Page 51

    51 filter replacement 1. Remove the filter box cover by loosening and removing the two wing nuts holding it in place. 2. Remove the filter by lifting it straight up and out of the slot in the filter box. 3. Reverse steps 1 and 2 to install the new filter. Use raypak replacement filters, kit number 0...

  • Page 52

    52 (b) exemptions: the following equipment is exempt from 248 cmr 5.08(2)(a)1 through 4: 1. The equipment listed in chapter 10 entitled "equipment not required to be vented" in the most current edition of nfpa 54 as adopted by the board; and 2. Product approved side wall horizontally vented gas fuel...

  • Page 53

    53 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 heater which are actually manufactured by raypak will be free from failure under normal use and service for the specified warranty periods and subject to...

  • Page 54

    54 limited parts warranty mvb – types p & whp models 504–2004 scope raypak, inc. (“raypak”) warrants to the original owner that all parts of this heater which are actually manufactured by raypak will be free from failure under normal use and service for the specified warranty periods and subject to ...

  • Page 55: Raypak Products

    55 start-up checklist for fan-assisted raypak products this start-up checklist is to be completely filled out by the service technician starting up the raypak boiler or heater for the first time. All information may be used for warranty purposes and to ensure that the installation is correct. Additi...

  • Page 56: Www.Raypak.Com

    Www.Raypak.Com raypak, inc., 2151 eastman avenue, oxnard, ca 93030 (805) 278-5300 fax (805) 278-5468 litho in u.S.A..