. SECTION 23 21 16
HYDRONIC PIPING SPECIALTIES
PART 1	GENERAL 
1.01	Section Includes
A.	Automatic Vacuum Degasser
B.	Automatic Vacuum Degasser Including Integrated Refill Function with Direct Refill Connection 
C.	Automatic Vacuum Degasser Including Integrated Refill Function with Break Tank 
1.02	references
A.	North America: UL 73 10th Edition – Motor-operated appliances
B.	Canada: CSA C22.2 No. 68-2018 – Motor-operated appliances
1.03	Submittals
A.	Product Data: Submit for manufactured products and assemblies used in this Project. 
1.	Manufacturer’s data and list indicating use, operating range, total range, accuracy, and location for manufactured components. 
2.	Submit product description, model, dimensions, component sizes, rough-in requirements, service sizes, and finishes. 
3.	Submit schedule indicating manufacturer, model number, size, location, rated capacity, load served, and features for each piping specialty. 
4.	Alternates must be approved to bid 10 days prior to bid date. In each substitution request, include a line-by-line comparison of this specification to the proposed substitution with a notation if the proposed substitution Complies, Deviates, or Takes Exception to the specification.  
1.04	Quality assurance
A.	Substitution of Materials:  Refer to General Conditions of the Contract.
B.	Manufacturer Qualifications:  Company specializing in manufacturing the type of products specified in this section, with minimum twenty years of documented experience.
1.05	Warranty
A.	Manufacturer standard warranty indicating that units shall be free from material and workmanship defects from the date of sale for the time periods indicated below:
1.	Two Years (Standard) 
2.	Three Years (Optional for additional cost)
1.06	delivery, storage, and handling
A.	Follow manufacturer instructions.
B.	Protect components from entry of foreign materials by temporary covers, caps and closures, completing sections of the work, and isolating parts of completed system until installation.
PART 2	products
2.01	air eliminatorS
A.	Manufacturers
1.	Spirotech (Model S600, S600-L)
B.	The unit shall be a pre-assembled, fully automatic vacuum degasser that shall remove dissolved and free gases from heat transfer fluids in hydronic heating and cooling systems. The unit shall degas the system fluid using a vacuum degassing principle, by achieving a negative pressure of -14.5PSI in the degassing vessel.
C.	Unit shall be listed, labeled, and certified by a Nationally Recognized Testing Laboratory (NRTL) to meet Underwriters Laboratories, Inc. (UL), standards.
D.	The unit shall have a removable and enclosed housing providing a protective and soundproofing function.
E.	All integral pumps shall have integrated dry running protection.
F.	The unit shall run a self-regulating degassing process until gas has reached minimum level, except during time periods set by the user. The process shall include two phases:
1.	The flushing phase: The fluid is drawn into the unit via the inlet connection and through the solenoid valve into the degassing vessel. The pump continuously pumps the fluid from the vessel back to the system piping through the outlet connection. The degassed fluid reintroduced to the system absorbs gases present throughout the system.
2.	The vacuum phase: The inlet solenoid valve regularly closes, starting a vacuum phase. The continuously running pump provides the necessary negative pressure in the vessel. The negative pressure causes the release of the gases dissolved in the fluid, and these gases are collected at the top of the vessel. At the end of the vacuum phase, the inlet solenoid valve opens again, starting the flushing phase and releasing the gases from the installation through the automatic air vent. A sensing switch at the automatic air vent shall ensure that the degassing process is paused as the content of dissolved gases has reached the minimum level.
G.	The unit shall only pause the degassing process when the minimum dissolved gas level has been reached.
H.	The unit shall be suitable for use in systems filled with clean water or mixtures of water and glycol up to 40%.
I.	The unit shall include but not be limited to the following features and capabilities:
1.	Freely programmable switch-on, standstill, and continuous and interval degassing times.
2.	Degassing monitoring using sensing technology for optimal and demand-dependent degassing of the system fluid.
3.	Energy saving and reduction of maintenance costs through automatic shutdown after the minimum gas level has been reached.
4.	Pre-programmable restart to periodically check the amount of gas in the system.
5.	Programmable microprocessor control including touch display, real-time clock, status message display, and parameter input.
6.	Display of warning/error messages and operating history as plain text combined with graphical representations.
7.	Interface to set and modify the minimum operating pressure. 
8.	Automatic Commissioning Procedure to guide the startup procedure via interactive display
J.	General Specifications:
1.	Dimensions:			40 in. (H) x 26.5 in. (W) x 15 in. (D)
2.	Dry weight:			137 lbs
3.	Noise level at 1 meter:	57 dBa
4.	Inlet/outlet connections:	Swivel G3/4” female NPT adapter
5.	Supply voltage:		115 V +/- 10% (60 Hz)
6.	Required supply protection:	15 A (CA) / 20 A (US)
7.	Power consumption:		800 W
8.	Nominal pump current:	5.1 A
9.	Network connections:
a.	LAN	RJ45
b.	WLAN	802.11 B/G/N
K.	Operating Parameters:
1.	System Pressure: 		35 – 90 psi (S600) / 15 – 40 psi (S600-L)
2.	Processing Capacity:		250 gal / h
3.	Max. System Volume:		80,000 gal
4.	System Temperature:		32 – 200 deg. F
5.	Ambient Temperature:	32 – 100 deg. F
2.02	Automatic Vacuum Degasser Including Integrated Refill Function with Direct Refill Connection
A.	Manufacturers
1.	Spirotech (Model S600-R, S600-RL)
B.	The unit shall be a pre-assembled, fully automatic vacuum degasser that shall remove dissolved and free gases from heat transfer fluids in hydronic heating and cooling systems. The unit shall degas the system fluid using a vacuum degassing principle, by achieving a negative pressure of -14.5PSI in the degassing vessel.
C.	Unit shall be listed, labeled and certified by a Nationally Recognized Testing Laboratory (NRTL) to meet Underwriters Laboratories, Inc. (UL), standards.
D.	The unit shall have a removable and enclosed housing providing a protective and soundproofing function.
E.	All integral pumps shall have integrated dry running protection.
F.	The unit shall run a self-regulating degassing process until gas has reached minimum level, except during time periods set by the user. The process shall include two phases:
1.	The flushing phase: The fluid is drawn into the unit via the inlet connection and through the solenoid valve into the degassing vessel. The pump continuously pumps the fluid from the vessel back to the system piping through the outlet connection. The degassed fluid reintroduced to the system absorbs gases present throughout the system.
2.	The vacuum phase: The inlet solenoid valve regularly closes, starting a vacuum phase. The continuously running pump provides the necessary negative pressure in the vessel. The negative pressure causes the release of the gases dissolved in the fluid, and these gases are collected at the top of the vessel. At the end of the vacuum phase, the inlet solenoid valve opens again, starting the flushing phase and releasing the gases from the installation through the automatic air vent. A sensing switch at the automatic air vent shall ensure that the degassing process is paused as the content of dissolved gases has reached the minimum level.
G.	The unit shall only pause the degassing process when the minimum dissolved gas level has been reached.
H.	The unit shall have an integrated refill function and shall be capable of controlling the pressure of the system. The unit shall insert additional (degassed) fluid into the system as required to change the system pressure. The unit shall also refill on demand of external equipment, e.g. expansion tanks. The refill process shall consist of a refill phase where makeup water or other fluid (refill fluid) is drawn through the refill valve into the vessel. After the refill phase is complete, the unit shall initiate a vacuum phase to remove all gasses dissolved in the refill fluid. The subsequent flushing phase inserts the additional (degassed) fluid into the system. 
I.	The unit shall be suitable for use in systems filled with clean water or mixtures of water and glycol up to 40%.
J.	The unit shall include but not be limited to the following features and capabilities:
1.	Freely programmable switch-on, standstill, and continuous and interval degassing times.
2.	Degassing monitoring using sensing technology for optimal and demand-dependent degassing of the system fluid.
3.	Energy saving and reduction of maintenance costs through automatic shutdown after the minimum gas level has been reached.
4.	Pre-programmable restart to periodically check the amount of gas in the system.
5.	Pre-programmable alarm limits for refill volume, duration, and frequency 
6.	Programmable microprocessor control including touch display, real-time clock, status message display, and parameter input.
7.	Display of warning/error messages and operating history as plain text combined with graphical representations.
8.	Interface to set and modify the minimum operating pressure. 
9.	Automatic Commissioning Procedure to guide the startup procedure via interactive display
K.	General Specifications:
1.	Dimensions:			40 in. (H) x 26.5 in. (W) x 15 in. (D)
2.	Dry weight:			139 lbs
3.	Noise level at 1 meter:	57 dBa
4.	Inlet/outlet connections:	Swivel G3/4” female NPT adapter
5.	Fluid refill connection:		Swivel G3/4” female NPT adapter 
6.	Supply voltage:		115 V +/- 10% (60 Hz)
7.	Required supply protection:	15 A (CA) / 20 A (US)
8.	Power consumption:		800 W
9.	Nominal pump current:	5.1 A
10.	Internet connections:
a.	LAN	RJ45
b.	WLAN	802.11 B/G/N
L.	Operating Parameters:
1.	System Pressure: 		35 – 90 psi (S600) / 15 – 40 psi (S600-L)
2.	Processing Capacity:		250 gal / h
3.	Max. System Volume:		80,000 gal
4.	System Temperature:		32 – 200 deg. F
5.	Ambient Temperature:	32 – 100 deg. F
6.	Refill Pressure:		0 – 145 psi
7.	Refill Temperature:		0 – 140 deg. F
8.	Effective Refill Flow:		100 gal / h
2.03	Automatic Vacuum Degasser Including Integrated Refill Function with Break Tank
A.	Manufacturers
1.	Spirotech (Model S600-B, S600-BL)
B.	The unit shall be a pre-assembled, fully automatic vacuum degasser that shall remove dissolved and free gases from heat transfer fluids in hydronic heating and cooling systems. The unit shall degas the system fluid using a vacuum degassing principle, by achieving a negative pressure of -14.5PSI in the degassing vessel.
C.	Unit shall be listed, labeled and certified by a Nationally Recognized Testing Laboratory (NRTL) to meet Underwriters Laboratories, Inc. (UL), standards.
D.	The unit shall have a removable and enclosed housing providing a protective and soundproofing function.
E.	All integral pumps shall have integrated dry running protection.
F.	The unit shall run a self-regulating degassing process until gas has reached minimum level, except during time periods set by the user. The process shall include two phases:
1.	The flushing phase: The fluid is drawn into the unit via the inlet connection and through the solenoid valve into the degassing vessel. The pump continuously pumps the fluid from the vessel back to the system piping through the outlet connection. The degassed fluid reintroduced to the system absorbs gases present throughout the system.
2.	The vacuum phase: The inlet solenoid valve regularly closes, starting a vacuum phase. The continuously running pump provides the necessary negative pressure in the vessel. The negative pressure causes the release of the gases dissolved in the fluid, and these gases are collected at the top of the vessel. At the end of the vacuum phase, the inlet solenoid valve opens again, starting the flushing phase and releasing the gases from the installation through the automatic air vent. A sensing switch at the automatic air vent shall ensure that the degassing process is paused as the content of dissolved gases has reached the minimum level.
G.	The unit shall only pause the degassing process when the minimum dissolved gas level has been reached. 
H.	The unit shall have an integrated refill function and shall be capable of controlling the pressure of the system. The unit shall insert additional (degassed) fluid into the system as required to change the system pressure. The unit shall also refill on demand of external equipment, e.g. expansion tanks. The refill process shall consist of a vacuum phase where makeup water or other fluid (refill fluid) is drawn into the unit and into an integral air-gapped break tank where the fluid level is controlled by a float valve. Fluid is then drawn into the vessel, the system valve closes, and the refill valve opens. After the refill process is complete, the unit shall initiate a flushing phase during which system fluid is flushed through the vessel to degas the refill fluid. The unit refill function shall be capable of refilling the system in case of abnormal or total pressure loss.
I.	The unit shall be suitable for use in systems filled with clean water or mixtures of water and glycol up to 40%.
J.	The unit shall include but not be limited to the following features and capabilities:
1.	Freely programmable switch-on, standstill, and continuous and interval degassing times.
2.	Degassing monitoring using sensing technology for optimal and demand-dependent degassing of the system fluid.
3.	Energy saving and reduction of maintenance costs through automatic shutdown after the minimum gas level has been reached.
4.	Pre-programmable restart to periodically check the amount of gas in the system. 
5.	Pre-programmable alarm limits for refill volume, duration, and frequency 
6.	Programmable microprocessor control including touch display, real-time clock, status message display, and parameter input.
7.	Display of warning/error messages and operating history as plain text combined with graphical representations.
8.	Interface to set and modify the minimum operating pressure. 
9.	Automatic Commissioning Procedure to guide the startup procedure via interactive display
K.	General Specifications:
1.	Dimensions:			40 in. (H) x 26.5 in. (W) x 15 in. (D)
2.	Dry weight:			141 lbs
3.	Noise level at 1 meter:	57 dBa
4.	Inlet/outlet connections:	Swivel G3/4” female NPT adapter
5.	Supply voltage:		115 V +/- 10% (60 Hz)
6.	Required supply protection:	15 A (CA) / 20 A (US)
7.	Power consumption:		800 W
8.	Nominal pump current:	5.1 A
9.	Internet connections:
a.	LAN	RJ45
b.	WLAN	802.11 B/G/N
L.	Operating Parameters:
1.	System Pressure: 		35 – 90 psi (S600) / 15 – 40 psi (S600-L)
2.	Processing Capacity:		250 gal / h
3.	Max. System Volume:		80,000 gal
4.	System Temperature:		32 – 200 deg. F
5.	Ambient Temperature:	32 – 100 deg. F
6.	Refill Pressure:		15 – 145 psi
7.	Refill Temperature:		0 – 140 deg. F
8.	Effective Refill Flow:		80 gal / h
PART 3	Execution
3.01	Installation
A.	Install specialties in accordance with manufacturer's instructions.
3.02	START-UP AND COMMISSIONING
A.	An on screen Automatic Commissioning Procedure provides guidance during the startup procedure.
3.03	maintenance
A.	Provide water chemical treatment applicable with industry standards and in compliance with recommendations and guidelines of manufacturers of system equipment.  Failure to adequately maintain water conditions will invalidate equipment warranties.

END OF SECTION