Raypak MVB TYPE B 504-2004 Instrucciones de operaciones Pagina 22
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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 vent gas
temperature that avoids excessive condensate pro-
duction in the vent.
Category II – A heater which operates with a non-pos-
itive vent static pressure and with a vent gas
temperature that may cause excessive condensate
production in the vent.
Category III – A heater which operates with a positive
vent pressure and with a vent gas temperature that
avoids excessive condensate production in the vent.
Category IV – A heater which operates with a positive
vent pressure and with a vent gas temperature that
may cause excessive condensate production in the
vent.
See Table K for appliance category requirements.
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 the vent pass-
es through combustible roofs and walls.
Vent Terminal Location
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause im-
proper and dangerous operation. Verify proper
operation after servicing.
Fig. 19: Wiring Location
DANGER: SHOCK HAZARD
CAUTION: Proper installation of flue venting is
critical for the safe and efficient operation of the
heater.
NOTE: For additional information on appliance
categorization, see appropriate ANSI Z21 Standard
and the NFGC (U.S.), or B149 (Canada), or
applicable provisions of local building codes.
WARNING: Contact the manufacturer of the vent
material if there is any question about the appliance
categorization and suitability of a vent material for
application on a Category III or IV vent system.
Using improper venting materials can result in
personal injury, death or property damage.
NOTE: During winter months check the vent cap
and make sure no blockage occurs from build-up of
snow or ice.
NOTE: A grounding electrode conductor shall be
used to connect the equipment grounding
conductors, the equipment enclosures, and the
grounded service conductor to the grounding
electrode.
CAUTION: When condensate traps are installed,
condensate must be routed to an appropriate con-
tainer for neutralization before disposal, as required
by local codes.
Make sure electrical power to the heater is discon-
nected to avoid potential serious injury or damage to
components.
California Hot Water Supply, Inc.
(800) 249-7244
22
- INSTALLATION & OPERATING 1
- INSTRUCTIONS 1
- CONTENTS 3
- WARNINGS 4
- BEFORE INSTALLATION 5
- General Information 6
- Component Locations 6
- GENERAL SAFETY 7
- INSTALLATION 8
- Outdoor Installations 9
- Indoor Units 9
- Conventional Combustion Air 11
- Water Piping 12
- Relief Valve Piping 13
- Hydrostatic Test 13
- Cold Water Operation 13
- Hydronic Heating 14
- Three-Way Valves 15
- Air-Separation/Expansion Tank 15
- Domestic Hot Water 16
- 2 open position, and Valve 17
- Pool/Spa Water Chemistry 18
- Gas Supply 19
- Electrical Power Connections 20
- Field-Connected Controllers 21
- Check the Power Source 21
- Field Wiring Connection 22
- Venting Installation Tips 24
- Venting Configurations 24
- Fig. 20: Vertical Venting 25
- Engineered Vent Systems 27
- Direct Vent—Vertical 28
- Outdoor Installation 29
- Controls 30
- Operating Modes 31
- ELECTRONIC 32
- Definitions 33
- 7 0°F -10°F to 10°F 34
- Operation 35
- Heater Sequence of Operation 36
- Ignition Module 37
- High Limit—Manual Reset 37
- Fig. 37: Flow Switch 38
- Fig. 39: Low Water Cut-Off 38
- Blocked Vent Switch 39
- UDB Diagnostic Board 39
- Air Pressure Switch 39
- Models H & WH 40
- - Models P & WHP 41
- START-UP 42
- Start-Up 43
- Safety Inspection 44
- Follow-Up 44
- Finishing 44
- Post Start-Up Check 45
- OPERATION 46
- To Turn Off Gas To Appliance 47
- MAINTENANCE 49
- Preventive Maintenance 50
- Schedule 50
- APPENDIX 51
- LIMITED PARTS WARRANTY 53
- MVB – TYPES H AND WH 53
- MODELS 504-2004 53
- LIMITED PARTS WARRANTY 54
- MVB – TYPES P & WHP 54
- MODELS 504–2004 54
- RAYPAK PRODUCTS 55
- Litho in U.S.A 56
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