Raypak MVB 504 - Manual (Page 3)

1. Control Panel
Fully enclosed controls and wiring protect against dam-
age or vandalism. Cabinet design affords easy access to
controls for installation and service.
2. Temp-Tracker Mod Control
This factory-mounted multi-function control
delivers precise load-tracking with selectable
mode displays that are easy to access and read.
3. On Board Diagnostic Center
Factory-mounted standard equipment. Gives relevant
service feedback as well as possible solutions to clear
the fault. All in plain English, no cryptic codes to deci-
pher. The control also stores up to 16 fault codes in its
history file for the service technician to review.
4. Weather-Proof Jacket
Heavy gauge galvanized steel with a UV-resistant
Polytuf powder coat finish is impervious to weather and
corrosion.
5. Combustion Air Fan
Cast aluminum, non-sparking construction.
6. Vent Pressure Switch
Monitors vent pressure and provides safe shut down if
back pressure is excessive.
7. Minimum Clearance Requirements
Only one inch of side clearance is required from
combustible surfaces.
8. Vertical Heat Exchanger
Cylindrical, multi-pass heat exchanger captures all radi-
ant energy, eliminating the need for heavy refractory.
9. Rugged Cast Headers
Bronze headers standard on water heater models. Cast-
iron standard on boiler models, with bronze headers
optional.
10. Tube Sheet Construction
Eliminates the repair & maintenance problems associat-
ed with rolled-tube construction. Easy, cost-effective
component replacement.
11. Viewing Port
Allows easy burner inspection.
12. Low Voltage Wiring Connections
Up front and easy to get to. Makes sensor wiring and
external control wiring simple and clean.
13. Drain Valves
Two drain valves located at the bottom of the heat
exchanger. This allows for complete winterizing and
drainage of the heater.
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Cold Water Solutions
Cold Water Start – For applications that
require reliable protection against harmful con-
densation caused by frequent, extended, cold
water start-ups. Raypak’s Cold Water Start pro-
tection system utilizes a proportional three-
way valve to bypass water from the boiler out-
let to the inlet during start-up, when the sys-
tem return water temperature is below the minimum acceptable
level. (See Cat. #1000.19)
Cold Water Run – For applications requir-
ing constant condensation protection. Raypak’s
Cold Water Run system utilizes a variable-
speed pump to inject just the right amount of
water from the main system loop into the boil-
er to maintain the optimum inlet temperature.
This approach allows the full capacity of the
boiler to be utilized to meet the system load,
while at the same time continuously maintaining the optimum inlet
water temperature to prevent condensation. (See Cat. #1000.19)
Multi Boiler Solutions
State of the art European combustion technology
Optional Equipment
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TempTracker Mod+ Hybrid– Controls up
to 16 Raypak boilers with PID logic. Automatic
or manually selectable lead-lag boiler opera-
tion. TempTracker Mod+ Hybrid monitors and
displays supply water temperatures on all
applications including outdoor temperature
when outdoor reset mode is selected. Can
also be used to control a mix of condensing
and non condensing boilers using our Hybrid
control algorithm. Now available with
optional BACnet
® BMS link.
(See Cat. # 5100.22)
Hybrid Control
BACnet BMS Link