Delta PG PLUS-25 Operations Instructions download pdf (Page 28)

22

Primary Piping

System Piping - Radiant Heating with Mixing

Va l v e

Connect the PERFORMANCE PLUS to the

system piping as shown with a radiant sys-

tem using a thermostatic mixing valve as

shown in Fig. 14 page 25. The primary / sec-

ondary piping ensures sufficient return tem-

perature to the PERFORMANCE PLUS.

If the radiant system tubing contains no

oxygen barrier, a stainless steel heat

e x c h a n g e r must be used. Failure to

install a heat exchanger could lead to

premature failure of the outer tank and

void any warranty claim.

Radiant heating system piping should

include a means of regulating the boiler

return water. The return water tempera-

ture to the unit should be maintained at

130ºF or higher. Failure to prevent low

return water temperature to the unit

could cause premature failure of the unit

and it’s burner system resulting in severe

personal injury, death or s u b s t a n t i a l

property damage.

Size the system piping and circulator to pro-

vide the flow needed for the radiant system.

To control the zone circulators reference

Figure 34, page 45.

To ensure adequate flow rate through

the PERFORMANCE PLUS, maintain a

minimum 1 inch diameter on the system

piping connecting the unit to and from

the primary / secondary connection.

System Piping - Multiple Units Installation

Use a balance manifold system as the pri-

mary / secondary connection to the space

heating piping as shown in Fig. 16 page 26.

Refer to Fig. 11 page 23 to install air elim-

ination and expansion tank.

For the space heating piping refer to the

applications mentioned in this manual or

use recognized design methods.

NOTICE

WARNING

NOTICE

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 75 76

Comments to this Manuals

No comments