Ts Series Installation and Operation Instructions
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Trinity Ts
31
Circulating Pumps
– Trinity Ts boilers are equipped with three 120VAC pump outputs:
1.
PUMP A
“DHW Pump” - operates during a Domestic Hot Water demand (DHW).
2.
PUMP B
“Boiler Pump” - operates during any demand.
3.
PUMP C
“CH Pump”
- operates during a Central Heat/Thermostat demand (THERMOSTAT).
Ensure pumps are oriented as per the manufacturers’ instructions. Wiring of these circulators will depend on the
system configuration selected, see Figures 10-2 and 10-3. For further wiring details see Section 11.0.
Circulators responsible for forcing the water flow rate through the boiler must be sized
according to Table 10-4, see Figures 10-2 and 10-3 for details.
Failure to ensure the minimum water flow rate through the boiler when the burner is on
will not only reduce the operating efficiency of the boiler, but may also cause premature
failure, overheating and void the warranty. Failure to follow instructions may result in fire, property damage,
serious injury or death.
Table 10-4 Minimum Circulator and Pipe Sizes
Minimum Primary Loop Pump Size
Model
Restriction
Head Loss
Minimum
Pipe Size
Min. Flow
(GPM)
Max Temp.
Rise
B&G
Grundfos
Taco
Armstrong
80
6' at 4 GPM
¾”
3.5
45
°
F
NRF-22 UPS
15-58 007
1
Astro
30
Notes:
1
Recommend using a Taco 008 for DHW indirect circulator when installed as per Figure 10-3.
Air Removal
– The boiler and system plumbing layout must be configured to promote the removal of air from
the water. Air vents and bleeders must be strategically placed throughout the system to aid in purging the air
from the system during commissioning of the boiler. The system must also employ the use of a strategically
located air removal device, such as an air scoop or micro-bubbler, designed to remove the air from the water as it
flows through the system.
Follow the installation instructions included with the air removal device when placing it
in the system; air removal devices generally work better when placed higher in the
system. Always locate air removal devices in areas of the system that have a guaranteed positive pressure, e.g.,
in close proximity to the water fill and expansion tank.
Trinity boilers are equipped with an automatic air removal device to aid in the purging of
air from the boiler during the initial fill. This device is
NOT
intended, nor is it sufficient
to remove the air from the system plumbing, even if the air makes it back to the boiler. A strategically located
air removal device must be installed in the system.
Expansion Tank
– The expansion tank must be sized in accordance with the water volume of the system as well
as the firing rate of the appliance. It is important to locate the expansion tank, and make-up water fill, on the
inlet side of any circulator in the system, as doing so will guarantee the lowest pressure in the system will be at
least equal to the tank and make-up water pressure. See examples in Figures 10-2 and 10-3.
Ensure the expansion tank cannot become isolated from the boiler anytime the system is
operating. Failure to follow these instructions may result in discharge of the Pressure
Relief Valve may result in property damage or personal injury.
The installation of flow checks, motorized valves or other shutoff devices (other than for
the purpose of servicing) are not permitted between the location of the "Closely Spaced
Tees" and the expansion tank; see Figures 10-2 and 10-3.
Содержание TRINITY Ts80
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