Standard Munchkin heater Traditional piping (zoning with valves) Space heating mode
Drawing 1A
zone valves
make-up water
P1 flow bypass valve
purging valves
V1 OFF
anti-scald mixing valve
T/P
Munchkin heater
Super Stor indirect DHW tank
NOTES: 1.
2.
3. 4. 5. 6. 7. 8.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. Adjust flow bypass valve for the following minimum boiler flow rates in any operating mode: Munchkin model 80M: 3 gpm Munchkin model 140M: 5 gpm Munchkin model 199M: 7 gpm The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater is 1.25 inches. All pumps are shown with isolation flanges. The alternative is standard flanges with full port ball valves. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119¼F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown.
Fig. 5-2 22
PIPING
Standard Munchkin heater Traditional piping (zoning with valves) Domestic water heating mode
Drawing 1B
zone valves F F O
make-up water
F F O
F F O
F F O
P1 flow bypass valve
purging valves
V1 anti-scald mixing valve
T/P
Munchkin heater
Super Stor indirect DHW tank
NOTES: 1.
2.
3. 4. 5. 6. 7. 8.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. Adjust flow bypass valve for the following minimum boiler flow rates in any operating mode: Munchkin model 80M: 3 gpm Munchkin model 140M: 5 gpm Munchkin model 199M: 7 gpm The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater is 1.25 inches. All pumps are shown with isolation flanges. The alternative is standard flanges with full port ball valves. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119¼F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown.
Fig. 5-3 23
PIPING
Standard Munchkin heater Traditional piping (zoning with circulators) Space heating Mode
Drawing 1C
space heating zone circuit
zone circulators make-up water
zone purging valves
closely spaced tees
P1
P2
T/P
Munchkin heater
Super Stor indirect DHW tank
NOTES: This drawing is meant to show system piping concept only. 1. Installer is responsible for all equipment & detailing required by local codes. 2. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and 3. downstream of all closely spaced tees. The ninimum pipe size for connecting a Super Stor water heater is 1 inch. 4. 5. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges. The alternative is standard flanges 6. with full port ball valves for isolation. The anti-scald mixing valve shown on the domestic water heater is optional. 7. 8. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown. 9.
Fig. 5-4 24
PIPING
Standard Munchkin heater Preferred piping (zoning with circulators) Domestic water heating Mode
Drawing 1D
space heating zone circuit
zone circulators make-up water
closely spaced tees
purging valves
anti-scald mixing valve
P1
P2
T/P
Munchkin heater
Super Stor indirect DHW tank
NOTES: 1.
2. 3. 4. 5. 6. 7. 8. 9.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges. The alternative is standard flanges with full port ball valves. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119¼F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown.
Fig. 5-5 25
PIPING
Standard Munchkin heater Preferred piping (zoning with valves) Space heating mode
Drawing 2A
zone valves
make-up water
P2 closely spaced tees
differential pressure bypass valve
purging valves
V1 anti-scald mixing valve
P1
T/P
Munchkin heater
Super Stor indirect DHW tank
NOTES: 1.
2. 3. 4. 5. 6. 7. 8. 9.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater is 1.25 inches. All pumps are shown with isolation flanges. The alternative is standard flanges with full port ball valves. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119¼F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees.
Fig. 5-6 26
PIPING
Standard Munchkin heater Preferred piping (zoning with valves) Domestic water heating mode
Drawing 2B
zone valves F F O
make-up water
F F O
F F O
F F O
P2 closely spaced tees
differential pressure bypass valve
V1
purging valves
anti-scald mixing valve
P1
T/P
Munchkin heater
Super Stor indirect DHW tank
NOTES: 1.
2. 3. 4. 5. 6. 7. 8. 9.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater is 1.25 inches. All pumps are shown with isolation flanges. The alternative is standard flanges with full port ball valves. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119¼F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees.
Fig. 5-7 27
PIPING
Standard Munchkin heater Preferred piping (zoning with circulators) Space heating mode
Drawing 2C
space heating zone circuit
zone circulators make-up water
closely spaced tees
purging valves anti-scald mixing valve
P2
P1
T/P
Munchkin heater
Super Stor indirect DHW tank
NOTES: 1.
2. 3. 4. 5. 6. 7. 8. 9.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges. The alternative is standard flanges with full port ball valves. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119¼F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown.
Fig. 5-8 28
PIPING
Standard Munchkin heater Preferred piping (zoning with circulators) Domestic water heating mode
Drawing 2D
space heating zone circuit
zone circulators make-up water
closely spaced tees
purging valves
anti-scald mixing valve
P2
P1
T/P
Munchkin heater
Super Stor indirect DHW tank
NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges. The alternative is standard flanges with full port ball valves. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119¼F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown.
Fig. 5-9 29
PIPING
Standard Munchkin heater Preferred piping (multiple heaters / zoning with circulators) Space heating mode
Drawing 2E
space heating zone circuit
zone circulators make-up water
closely spaced tees
purging valves
anti-scald mixing valve
P2 PB1
T/P
PB2
T/P
Munchkin heater
Munchkin heater
Super Stor indirect DHW tank
NOTES: 1.
2. 3. 4. 5. 6. 7. 8. 9.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges. The alternative is standard flanges with full port ball valves. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119¼F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown.
Fig. 5-10 30
PIPING
Piping Symbol Legend pressure reducing valve
circulator (w/ isolation flanges) circulator w/ integral flow check
Munchkin VISION 1 system (zoning with valves) Space heating mode
Drawing 3A
zone valves
high limit safety
make-up water
differential pressure bypass valve
e g r u p
purge
anti-scald mixing valve
P1 DHW temperature sensor
outdoor temperature sensor
OFF T/P
P2 purge Super Stor indirect DHW tank
thermal trap (w/ drain plug)
Munchkin heater
NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges and integral flow check valves. The alternative is standard flanges with full port ball valves and a separate flow check valve. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119 F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself.
Fig. 8-2 19
PIPING
Munchkin VISION 1 system (zoning with valves) Domestic water heating mode
Drawing 3B
zone valves
high limit safety OFF
make-up water
differential pressure bypass valve
e g r u p
purge
anti-scald mixing valve
OFF DHW temperature sensor
P1
outdoor temperature sensor
T/P
P2 purge Super Stor indirect DHW tank
thermal trap (w/ drain plug)
Munchkin heater
NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
Fig. 8-3 20
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges and integral flow check valves. The alternative is standard flanges with full port ball valves and a separate flow check valve. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119 F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself.
PIPING
Munchkin VISION 1 system (zoning with valves) Space heating mode (w/ submixing)
Drawing 3C
3-way (manually-set) mixing valve vent
low temperature manifold station
air handler
high limit safety
purge e g r u p
make-up water
differential pressure bypass valve
balancing valve
anti-scald mixing valve
DHW temperature sensor
P1
outdoor temperature sensor
OFF T/P
P2 purge Super Stor indirect DHW tank
thermal trap (w/ drain plug)
Munchkin heater
NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
This drawing is meant to show s ystem piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges and integral flow check valves. The alternative is standard flanges with full port ball valves and a separate flow check valve. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119 F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. Adjust 3-way manually-set mixing valve to yield proper supply temperature to lower temperature load.
Fig. 8-4 21
PIPING
Munchkin VISION 1 system (zoning with circulators) Space heating mode
Drawing 4A
make-up water zone circulators high limit safety
closely spaced tees e g r u p
purge
anti-scald mixing valve
DHW temperature sensor
P1
outdoor temperature sensor
OFF T/P
P2 purge Super Stor indirect DHW tank
thermal trap (w/ drain plug)
Munchkin heater
NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9.
Fig. 8-5 22
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream a nd downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges and integral flow check valves. The alternative is standard flanges with full port ball valves and a separate flow check valve. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119 F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown.
PIPING
Munchkin VISION 1 system (zoning with circulators) Domestic water heating mode
Drawing 4B
make-up water zone circulators high limit safety
closely spaced tees e g r u p
purge
anti-scald mixing valve
DHW temperature sensor
P1
outdoor temperature sensor
T/P
P2 purge Super Stor indirect DHW tank
thermal trap (w/ drain plug)
Munchkin heater
NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9.
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. The minimum pipe size for connecting a Sup er Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges and integral flow check valves. The alternative is standard flanges with full port ball valves and a separate flow check valve. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119 F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown.
Fig. 8-6 23
PIPING
Munchkin VISION 1 system (zoning with circulators) Space heating mode (w/ submixing)
Drawing 4C
3-way (manually-set) mixing valve vent air handler
low temperature manifold station
high limit safety
balancing valve make-up water
e g r u p
purge
anti-scald mixing valve
DHW temperature sensor
P1
outdoor temperature sensor
OFF T/P
P2 purge Super Stor indirect DHW tank
thermal trap (w/ drain plug)
Munchkin heater
NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
Fig. 8-7 24
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream a nd downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges and integral flow check valves. The alternative is standard flanges with full port ball valves and a separate flow check valve. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119 F. Install a minimum of 12 diameters of straight pipe upstream of all circulators. A purging valve may be used in lieu of the ball valve / hose bib combination shown. Adjust 3-way manually-set mixing valve to yield proper supply temperature to lower temperature load.
PIPING
Munchkin VISION 1 system Drawing 4E (zoning with circulators) Space heating mode (3 fully reset supply temperatures) medium temperature manifold station
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. The minimum pipe size for connecting a Sup er Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges and integral flow check valves. The alternative is standard flanges with full port ball valves and a separate flow check valve. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119 F. Do not use valve actuators on manifolds supplied by manually-set 3-way mixing vaalves. A purging valve may be used in lieu of the ball valve / hose bib combination shown. Adjust 3-way manually-set mixing valve to yield proper supply temperature to lower temperature load.
Fig. 8-8 25
PIPING
Munchkin VISION 1 system Drawing 4F (zoning with circulators) Space heating mode (3 different supply temperatures) 3-way manually-set mixing valve
vent
air handler (higher temp.) vent low temperature manifold station high limit safety variable speed injection mixing make-up water
e g r u p
purge
balancing valves
medium temperature manifold station
anti-scald mixing valve purge
P1
DHW temp. sensor
outdoor temperature sensor
OFF T/P
P2 purge Super Stor indirect DHW tank
thermal trap (w/ drain plug)
Munchkin heater
NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
Fig. 8-9 26
This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing required by local codes. All closely spaced tees shall be within 4 pipe diameter center to center spacing. A minimum of 6 pipe diameters of straight pipe shall be installed upstream a nd downstream of all closely spaced tees. The minimum pipe size for connecting a Super Stor water heater is 1 inch. The minimum pipe size for connecting a Munchkin heater shall be 1.25 inches. All pumps are shown with isolation flanges and integral flow check valves. The alternative is standard flanges with full port ball valves and a separate flow check valve. The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119 F. Follow all instructions for installation of injection mixing system. A purging valve may be used in lieu of the ball valve / hose bib combination shown. Adjust 3-way manually-set mixing valve to yield proper supply temperature to lower temperature load.