Technical data

ManualsBrandsSanton ManualsDomestic AppliancesPP100E

Fixed grating

Discharge below

fixed grating

(Building Regulation

G3 section 3.9d gives

alternative points

of discharge)

Trapped

gully

Discharge pipe (D2) from tundish,

with continuous fall. See Building

Regulation G3 section 3.9d i-iv,

Table 4 and worked example

300mm

minimum

500mm maximum

Metal discharge pipe (D1) from

Temperature relief valve to tundish

Tundish

Safety device

(e.g. Temperature

relief valve)

Table 4 Sizing of copper discharge pipe (D2) for common temperature relief valve outlet

FIG. 4 Typical discharge pipe arrangement (extract from Building Regulation G3 Guid-

ance section 3.9)

Valve outlet size Minimum size of

discharge pipe

Minimum size of

discharge pipe

D2 from tundish

Maximum

re sistance

allow e d,

expre sse d as a

le ngth of straight

pipe (I.e. no

elbow s or be nds)

Resistance

create d by each

elbow or bend

G1/2 15mm

22mm

28mm

35mm

up to 9m

up to 18m

up to 27m

0.8m

1.0m

1.4m

G3/4 22mm

28mm

35mm

42mm

up to 9m

up to 18m

up to 27m

1.0m

1.4m

1.7m

G1 28mm

35mm

42mm

54mm

up to 9m

up to 18m

up to 27m

1.4m

1.7m

2.3m

3.9 WARNINGS

• Under no circumstances should the factory fitted

Temperature/Pressure Relief Valve be removed other

than by authorised Santon personnel. To do so will

invalidate any guarantee or claim.

• The Cold Water Combination Valve must be fitted

to the mains water supply to the Premier Plus unit.

• No control or safety valves should be tampered

with.

• The discharge pipe should not be blocked or used

for any other purpose.

• The tundish should not be located adjacent to any

electrical components.