Zodiac TRi pH Module - 2 Installation; Preparing the Pool: Water Balance

H0412500.A - EN - 2013-02
4
EN
TRi pH module TRi PRO module
pH minus dosage Proporonal cyclic
pH sensor tolerances 5 bar / 60°C
Measurement scale & pH sensor accuracy pH 0.0 to pH 12.0, ± 0.1 pH
pH sensor calibraon 1 point, pH 7.5
ACL sensor tolerances / 5 bar / 60°C
Measurement scale & ACL sensor accuracy / 100 mV to 1000 mV / ± 10 mV
ACL sensor calibraon / 1 point, 700 mV
pH and ACL sensor response me < 15 seconds
Dimensions (w x h x d) 28.5 x 15.5 x 7.5 cm
Weight (module only) 1 kg
Protecon index IP23
2. Installaon
2.1 Preparing the pool: water balance
The TRi is designed to disinfect the water in the pool by means of its salt chlorinaon funcon.
With the TRi pH module, it automacally maintains the pH value of your pool.
With the TRi PRO module, it automacally maintains the pH value and chlorine level (ACL or Redox potenal) of your pool.
It is essenal for the water balance of the pool to be checked and adjusted before installing this equipment. Ensuring the
water balance of the pool is correct from the start will reduce the likelihood of encountering problems in the rst days
operaon or during the season using the pool.
Even if it is an automac control system, it is essenal to analyze the water regularly to check the water balance
parameters.
Unit
Recommended
values
To increase To decrease
Test frequency
(during season)
pH / 7.2 to 7.4
Deacvate dosage
or add pH+
Automac
(pH minus Perfect pH- or
pH-
Weekly
Free
chlorine
mg/L or ppm 0.5 to 2
Increase ACL set
point or add chlo-
rine
Decrease ACL set point
or turn o the unit
Weekly
TAC
(alkalinity or
buering power)
°f (ppm)
8 to 15
(80 to 150)
Add alkalinity cor-
rector
(Alca+ or TAC+)
Add hydrochloric acid Monthly
TH
(calcium hard-
ness)
°f (ppm)
10 to 30
(100 to 300)
Add calcium chlo-
ride
Add calcium binder
(Calci-) or decarbonate
Monthly
Cyanuric
acid
(stabilizer)
mg/L or ppm < 30
Add cyanuric acid
(only if necessary)
Parally drain the pool
and rell it
Quarterly
Salinity g/L or kg/m³ 4 Add salt
Leave as it is or parally
drain the pool and rell
it
Quarterly
Metals
(Cu, Fe, Mn…)
mg/L or ppm ± 0 /
Add metal binder (Metal
Free)
Quarterly