HomeMy WebLinkAboutB15-0250_M502_1442254080.pdfDOMESTIC WATER HEATER PIPING DIAGRAM
BOILER SYSTEM PIPING DIAGRAM
SNOWMELT SYSTEM PIPING DIAGRAM
GAS PIPING SCHEMATIC DIAGRAM
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1 3
4 HWS
HWR
D
HWS
HWR
D
HWS
HWR
HWR
HWS
INTERIOR EXTERIOR
LEVEL 3
LEVEL 1
LEVEL 2
HWR
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D
S D
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1. REFER TO MECHANICAL PLANS FOR GAS
PIPE ROUTING AND EQUIPMENT
LOCATIONS.
2. VERIFY EQUIPMENT GAS LOADS AND
PRESSURE REQUIREMENTS WITH FINAL
EQUIPMENT SUBMITTALS.
3. PROVIDE PROTECTION FOR METER
ASSEMBLY AND PIPING FROM FALLING
ICE/SNOW.
4. LOCATE METER ASSEMBLY TO BE
ACCESSIBLE FOR SERVICE.
5. SIZING BASED ON SCHEDULE 40
METALLIC PIPING.
NOTES:
BOILER
399 MBH
BOILER
399 MBH
DRYER
20 MBH
DRYER - 20 MBH
DRYER - 20 MBH
FP -
50 MBH
GAS BBQ -
40 MBH
RANGE -
96 MBH
FP -
50 MBH
SEQUENCE OF CONTROL:
1. BOILERS -
a. BOILERS WILL COME EQUIPPED WITH INTERNAL,
PACKAGED CONTROL SYSTEM THAT WILL MONITOR
OUTSIDE AIR TEMPERATURE, WATER HEATER TANK
TEMPERATURE, HEATING WATER SYSTEM TEMPERATURE,
DEMAND FROM RADIANT HEATING ZONES, AND DEMAND
FROM SNOWMELT SYSTEM.
b. HEATING OPERATION -
i. WHEN OUTSIDE AIR TEMPERATURE IS BELOW THE
PROGRAMMED SET POINT OF 60 DEG F (ADJUSTABLE),
BOILERS WILL BE ENABLED.
ii. ONCE ENABLED, AND THERE IS DEMAND FROM THE
HEATING WATER SYSTEM TEMP SENSOR, OR THE
SNOWMELT SYSTEM, THE BOILER CONTROLLER WILL
STAGE ON THE PRIMARY CIRCULATION PUMPS, BOILER
CIRCULATION PUMPS, AND BOILER BURNERS TO SATISFY
THE PROGRAMMED HEATING WATER SYSTEM SETPOINT.
iii. THE PROGRAMMED HEATING WATER SYSTEM SETPOINT
WILL BE RESET FROM 140 DEG F AT 30 DEG F OUTSIDE AIR
TEMP, TO 100 DEG F AT 60 DEG F OUTSIDE AIR TEMP.
iv. PUMPS AND BOILERS WILL STAGE OFF WHEN THE SYSTEM
DEMAND HAS BEEN SATISFIED OR WHEN THE OUTSIDE AIR
TEMPERATURE IS ABOVE THE PROGRAMMED SET POINT.
v. AN INTEGRAL TIMER WILL PREVENT THE BOILERS FROM
SHORT CYCLING.
vi.INTERNAL CONTROLLER WILL ALTERNATE LEAD/LAG
BOILER BASED ON INTERNAL RUN-TIME CLOCK.
vii. SYSTEM WILL BE ENABLED WITH THE FOLLOWING
SAFETY FEATURES THAT WILL DISABLE THE AFFECTED
BOILER, BUT ALLOW THE REMAINING BOILER TO CONTINUE
NORMAL OPERATION. THE INTERNAL CONTROL PANEL
WILL INDICATE ALARM UNTIL SERVICE TECH ADDRESSES
AND CLEARS ALARM.
1. LOW WATER
2. HIGH TEMPERATURE
3. HIGH/LOW PRESSURE
4. CONTROL SYSTEM OR OTHER INTERNAL SYSTEM FAILURE.
c. DOMESTIC HOT WATER HEATING PRIORITY OPERATION -
i. ON CALL FOR HEAT FROM TANK TEMPERATURE SENSOR
ON INDIRECT WATER HEATER, THE INTEGRAL
CONTROLLER WILL OVERRIDE THE INDIVIDUAL BOILER
OPERATION AND ENTER PRIORITY DOMESTIC HEATING
MODE.
ii. IN PRIORITY DOMESTIC HEATING MODE, THE BOILER
CIRCULATION PUMP WILL DEACTIVATE, THE BOILER
HEATING WATER SUPPLY TEMPERATURE WILL RESET TO
180 DEG F, AND THE WATER HEATER CIRCULATION PUMP
WILL ACTIVATE.
iii. THE OTHER BOILER WILL CONTINUE TO OPERATE IN
NORMAL MODE.
iv. ONCE DOMESTIC HOT WATER DEMAND IS SATISFIED,
SYSTEM WILL RETURN TO NORMAL HEATING OPERATION.
2. PUMPS
a. BOILER CIRCULATION PUMPS
i. PUMPS WILL BE ACTIVATED AS DESCRIBED IN THE BOILER
SEQUENCE.
b. WATER HEATER CIRCULATION PUMPS
i. PUMPS WILL BE ACTIVATED AS DESCRIBED IN THE BOILER
SEQUENCE.
c. MAIN HEATING WATER PUMPS
i. PUMPS WILL ACTIVATE ON A CALL FROM THE BOILER
SYSTEM AS DESCRIBED IN THE BOILER SEQUENCE.
ii. ON CALL FROM THE BOILER SYSTEM, INTERNAL PUMP
CONTROLLER WILL:
1. ALTERNATE LEAD/LAG PUMP BASE ON RUN-TIME
2. RAMP LEAD/LAG PUMP VFDS UP/DN BASED ON SYSTEM
PRESSURE DEMAND.
3. PUMPS WILL BE OFF WHEN CALL FROM BOILER CONTROLLER
IS SATISFIED.
ij. SNOWMELT PUMP
i. PUMP WILL BE ACTIVATED AS DESCRIBED IN THE
SNOWMELT SYSTEM SEQUENCE.
e. DOMESTIC HOT WATER RE-CIRCULATION
i. PUMP WILL ACTIVATE ON CALL FROM INTEGRAL TIMER
AND HEATING WATER RE-CIRCULATION SYSTEM
TEMPERATURE.
ii. TIMER WILL BE PROGRAMMED BY CONTRACTOR BASED
ON INPUT FROM OWNER TO BE ACTIVE DURING PERIODS
OF NORMAL OCCUPANCY, AND BE INACTIVE DURING
UNOCCUPIED PERIODS. INITIAL SETTING TO BE OCCUPIED
FROM 6 AM TO 10 PM
iii. WHEN ACTIVATED, PUMP WILL STAGE ON/OFF TO
MAINTAIN RE-CIRCULATION SYSTEM TEMPERATURE SET
POINT OF 110 DEG F (ADJUSTABLE).
3. SNOWMELT SYSTEM
a. SNOWMELT SYSTEM WILL BE CONTROLLED BY A TEKMAR
665 CONTROLLER OR EQUIVALENT WITH TEKMAR 090
SNOW/ICE IN-SLAB SENSORS.
b. WHEN OUTSIDE AIR TEMPERATURE IS BELOW
PROGRAMMED SETPOINT, CONTROLLER WILL ENABEL
SNOWMELT SYSTEM.
c. WHEN ENABLED, AND DETECTION OF SNOW/ICE FROM
IN-SLAB SENSORS, ZONE CONTROL VALVE WILL OPEN AND
SNOWMELT PUMP WILL ACTIVATE.
d. SNOWMELT PUMP INTEGRAL CONTROLLER WILL RAMP
VFD TO MAINTAIN SYSTEM PRESSURE DEMAND.
e. WHEN ENABLED, AND SNOWMELT SYSTEM TEMPERATURE
FALLS BELOW PROGRAMMED SETPOINT OF 110 DEG F
(ADJUSTABLE), THE CONTROLLER WILL OPEN SNOWMELT
HEAT EXCHANGER CONTROL VAVLE AND SEND DEMAND
SIGNAL TO BOILER SYSTEM. BOILER SYSTEM WILL
OPERATE PER THE BOILER SEQUENCE. CONTROL VAVLE
WILL CLOSE ONCE SETPOINT IS SATISFIED. CONTROL
VALVE TO FAIL CLOSED ON LOSS OF SIGNAL OR LOSS OF
POWER.
4. RADIANT FLOOR SYSTEM
a. RADIANT SYSTEM WILL BE THE PRIMARY, OR FIRST STAGE
OF HEAT.
b. ON CALL FOR HEAT FROM ROOM TEMPERATURE SENSOR,
CONTROL VALVE(S) IN RADIANT MANIFOLD WILL OPEN,
AND DEMAND SIGNAL SHALL BE SENT TO BOILER SYSTEM
CONTROLLER.
c. RADIANT FLOOR MANIFOLDS WILL BE EQUIPPED WITH
INDIVIDUAL LOOP HEATING CONTROL VALVES. WHEN
MULTIPLE LOOPS SERVE AN RADIANT ZONE, THE
INDIVIDUAL CONTROL VALVES WILL BE WIRED TOGETHER
TO OPERATE IN UNISON.
d. WHEN ROOM TEMPERATURE SENSOR IS SATISFIED,
CONTROL VALVE(S) WILL CLOSE.
e. CONTROL VALVES WILL FAIL CLOSED ON LOSS OF SIGNAL
OR POWER.
f. ROOM THERMOSTAT WILL BE FULLY PROGRAMMABLE AND
CONTROLLABLE VIA A WIFI AND INTERNET CONNECTION.
5. FAN COIL AND CONDENSING UNITS
a. FAN COILS WILL BE EQUIPPED WITH HYDRONIC HEATING
COIL, DX COIL, AND MOTORIZED MIXING BOX WITH
MINIMUM VENTILATION SETTING AND 100% OUTSIDE AIR
ECONOMIZER FUNCTION.
b. ROOM THERMOSTATS WILL BE FULLY PROGRAMMABLE
AND CONTROLLABLE VIA A WIFI AND INTERNET
CONNECTION.
c. FAN COILS SERVING MULTIPLE TEMPERATURE ZONES
WILL HAVE A MOTORIZE ZONE CONTROL SYSTEM -
HONEYWELL TRUEZONE OR EQUAL WITH PRESTIGE
THERMOSTATS, REDLINK GATEWAY, ZONE DAMPERS, AND
BYPASS DAMPER.
d. UNOCCUPIED CONTROL:
i. WHEN IN UNOCCUPIED PROGRAM MODE, THE OUTSIDE AIR
DAMPER WILL BE CLOSED AND COOLING WILL BE
DISABLED.
ii. ON CALL FOR HEAT, ZONE CONTROL DAMPER WILL
MODULATE OPEN/CLOSED, FAN VFD WILL RAMP UP AND
HEATING WATER CONTROL VAVLE WILL MODULATE OPEN
TO MAINTAIN UNOCCUPIED SETBACK TEMPERATURE
SETPOINT OF 55 DEG F (ADJUSTABLE).
iii. WHEN SPACE TEMPERATURE IS SATISFIED, ZONE
CONTROL DAMPERS WILL MODULATE CLOSED, FAN WILL
BE OFF, AND HEATING WATER CONTROL VALVE WILL
CLOSE.
e. OCCUPIED CONTROL
i. ON CALL FOR COOLING FROM ROOM THERMOSTAT,
OUTSIDE AIR DAMPER WILL OPEN TO MINIMUM POSITION,
ZONE CONTROL DAMPERS WILL MODULATE
OPEN/CLOSED, FAN VFD WILL RAMP UP AND ECONOMIZER
DAMPERS AND CONDENSING UNIT WILL STAGE TO
MAINTAIN SPACE TEMPERATURE SETPOINT OF 75 DEG F
(ADJUSTABLE).
ii. ON CALL FOR SECOND STAGE OF HEAT FROM ROOM
THERMOSTAT, OUTSIDE AIR DAMPER WILL OPEN TO
MINIMUM POSITION, ZONE CONTROL DAMPERS WILL
MODULATE OPEN/CLOSED, FAN VFD WILL RAMP UP AND
HEATING WATER CONTROL VAVLE MODULATE OPEN TO
MAINTAIN SPACE TEMPERATURE SETPOINT OF 72 DEG F
(ADJUSTABLE).
iii. ON CALL FOR FAN OPERATION, ZONE CONTROL DAMPERS
WILL MODULATE OPEN/CLOSED, AND FAN VFD WILL RAMP
UP TO CIRCULATE AIR.
iv. WHEN SPACE TEMPERATURE IS SATISFIED AND FAN IS IN
AUTO POSITION, OUTSIDE AIR DAMPER WILL CLOSE, ZONE
CONTROL DAMPERS WILL CLOSE, FAN WILL BE OFF, AND
HEATING CONTROL VAVLE WILL CLOSE.
v. HEATING WATER CONTROL VAVLE WILL FAIL OPEN ON
LOSS OF SIGNAL OR LOSS OF POWER.
f. VENTILATION OVERRIDE
i. FAN COIL UNITS SERVING THE MAIN LEVEL WILL BE
INTERLOCKED WITH THE KITCHEN HOOD SYSTEM.
ii. WHEN KITCHEN HOOD EXHAUST FAN IS ACTIVATED FROM
LOCAL CONTROL, OUTSIDE AIR DAMPER WILL OPEN TO
MINIMUM POSITION, AND FAN WILL RAMP UP.
iii. HEATING AND COOLING WILL ACTIVATE SIMILAR TO
OCCUPIED CONTROL SEQUENCE TO MAINTAIN ROOM
TEMPERATURE SETPOINT.
iv. WHEN KITCHEN HOOD IS OFF, FAN COIL SYSTEM WILL
REVERT TO NORMAL OPERATION.
g. SAFETIES:
i. FREEZESTAT SHALL BE PROVIDED FOR EACH FAN COIL.
WHEN FREEZESTAT SENSES TEMPERATURE BELOW
SETPOINT OF 40 DEGREES F (ADJ), SHUT FAN DOWN,
HEATING CONTROL VAVLE TO OPEN, AND OSA DAMPER TO
CLOSE.
ii. LOSS OF POWER: OSA DAMPER TO FAIL CLOSED, HEATING
CONTROL VAVLE TO FAIL OPEN.
iii. RA SMOKE DUCT DETECTOR IN COMMON RA DUCT WILL
SHUT DOWN UNIT ON DETECTION OF SMOKE.
EXTERIOR FIRE PIT 40 MBH
EXTERIOR FIRE PLACE 40 MBHFP - 40
MBH
WH-1a WH-1b
HX-1
COMBINED TEMP/
PRESSURE
GAUGE, TYP.
TO NEUTRALIZER,
TYP.
TO BOILER
CONTROL.
TO BUILDING.
TO BOILER
CONTROL.
1"HWS/R FROM
BOILER.
TO/FROM
BUILDING.
GAS METER BY LOCAL UTILITY -
1,200 MBH TOTAL CONNECTED
LOAD (NATURAL) SYSTEM
TOTAL DYNAMIC LENGTH (TDL) -
100', 2 PSI SUPPLY PRESSURE.
PRESSURE REDUCING VALVE
BY UTILITY.
SHUT-OFF VALVE, TYP.
PRESSURE REGULATOR ASSEMBLY
WITH VENTLESS REGULATOR IN
ACCESSIBLE LOCATION REGULATE
TO 14" W.C.
SOUTH REGULATOR 1,030 MBH,
CONNECT LOAD, 60' TDL.
NORTH REGULATOR 186
MBH, 60' TDL.
3"
3"
3"
3"
1-1/2"
1-1/2"
3/4" 1-1/2"
1-1/2"
3/4" 1"
1" 1" 1-1/2"
1-1/2"
3/4"
2"
2"
1" 1" 1-1/2"
2" 2" G (UTILITY)
1/2"
1/2"
1/2"
1/2"
1/2"
1/2"
3/4"
1/2"
3/4"
2"
1"
1"
1/2"
1/2"
1/2"
2"
2-1/2"
OSA
M
NONE
SCALE:
NONE
SCALE:
SCALE: NONE
SCALE: NONE
G
HWR
WHCP-1b
BCP-1b
B-1a G
WHCP-1a
BCP-1a
HWP-1a
HWP-1b
EXT-1
AS-1 T
4 PIPE ø
(MAX)
B-1b
EXT-2
HWCP-2
SMR
AS-2
EXT-2
SMP-1
SMS
2"
2"
PERMIT SET
Project number
Date
Drawn by
8/13/2015 2:06:03 PM
M502
MECHANICAL DIAGRAMS
HUGHES
LOT 3 / 994 PTARMIGAN RD
VAIL,CO
Hughes Residence
06.29.15
DAL
1
No. Description Date
1 REV 1 - PERMIT
COMMENTS
8.07.2015
09/14/15