Honeywell ZD16X8TZ

Honeywell ZD20X10TZ

Honeywell ZD20X8TZ

Honeywell ZD24X8TZ

Honeywell ZD8X16TZ

Honeywell ZD8X18TZ

SPRD10

SPRD10

• Single-blade, steel barometric damper used to bypass excess air when majority of zone dampers are closed
• Counter-balanced weighted arm to control bypass air for zoned systems
• Air pressure in duct system increases as zone dampers close, pushing the SPRD open automatically
• Arm and weight both adjustable to control amount of air bypassed
• Recommended for low pressure systems with less than 0.5" WC
• For larger systems and tighter pressure control, use Mard damper and static pressure controller (SPC)
• Additional weights availableSid Harvey Item #:SPRD12: Replaces Part #:'s : L86-324,
  
  

  SPRD12

  ,
  

  SPRD12

SPRD08

V4043A1697

V4043A1697

Honeywell V8043E1079

V8043E1079

• 2-way on-off low VAC age valves consist of an actuator and valve assembly for controlling the flow of hot water
• Manual opener for valve operation on power failure, valve returns to automatic position when power is restored
• All model may be installed without disassembling the valve
• Compact construction for easy installation
• Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system
• Actuator motor may be replaced without removing the valve body or draining the system
• Use this valve in closed loop hydronic systems that do not contain dissolved oxygen in system water, such as fresh water from frequent source of makeup water
• 15 sec nominal open timing
• Screw terminal block electric connection
• Spring return to close valve action
• No SPST auxiliary end switch
• 50 VA pilot duty at 24 VAC , 4.4 amp running with 26.4 amp inrush at 120 VAC end switch rating
• Buna-N (NBR) rubber plug

HONEYWELL B163-6

B163-6